2015 Updating and Screening Assessment for New … · 2015 Updating and Screening Assessment for...

New Forest District Council

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2015 Updating and Screening Assessment for New Forest District Council

In fulfillment of Part IV of the Environment Act 1995 Local Air Quality Management October 2015


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Local Authority Officer

Rachel Higgins

Department Public Health and Community Safety

Address

New Forest District Council Appletree Court Lyndhurst Hampshire SO43 7PA

Telephone 023 8028 5588

e-mail [email protected]

Report Reference number

NF/01/15

Date October 2015


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Executive Summary

This is the Updating and Screening Assessment 2015 for air quality for New Forest District

Council. The conclusions are based on monitoring data collated and ratified over 2014 and

following criteria laid out in published Technical Guidance (Defra, 2009).

Monitoring of nitrogen dioxide, particulate matter (PM10) and sulphur dioxide was undertaken

in the New Forest district during 2014. Monitoring has shown an exceedence of the nitrogen

dioxide annual mean objective at 5 locations within the Lyndhurst Air Quality Management

Area; the automatic monitoring site and 4 diffusion tube monitoring sites. No other

exceedances of the air quality objectives were monitored during 2014.

The monitoring has shown significant decreases of the nitrogen dioxide annual mean

objective at a number of locations in Lyndhurst, in particular 15 High Street (inside the

Lyndhurst Air Quality Management Area) which monitored a decrease of 4µg/m3 and The

Orchards, Shrubbs Hill Road (outside the Lyndhurst Air Quality Management Area) which

monitored a decrease of 5µg/m3.

The report suggests the monitored reduction in the annual mean concentration for nitrogen

dioxide determined in Lyndhurst since 2011/2012 may be due to the installation and

operation of a green filter traffic light system (and associated long vehicle detection and

Microprocessor Optimised Vehicle Actuation systems) which has improved traffic congestion

and increased traffic flow in Lyndhurst. Continued monitoring is recommended in Lyndhurst,

but due to the monitored improvements in nitrogen dioxide concentrations in Shrubbs Hill

Road and Gosport Lane New Forest District Council will not be considering to declare an

additional Air Quality Management Area in Lyndhurst or extend the existing Air Quality

Management Area at this time.

The Updating and Screening Assessment 2015 acknowledges that monitoring results in

Totton have not shown an exceedance of the nitrogen dioxide annual mean objective since

2008. Therefore the report has recommended that New Forest District Council now starts the

process to revoke the Air Quality Management Area in Totton in accordance with Technical

Guidance (Defra, 2009).


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The report notes that the process to revoke an Air Quality Management Area includes

producing evidence to support the revocation, a consultation process and cabinet approval.

As such this report includes an appendix providing detailed monitoring evidence for Totton to

support the recommendation to start the revocation process and to remove the requirement

to proceed to a Detailed Assessment, if agreeable with Defra.

The report also advises that monitoring of local air quality in Totton should continue for a time

post revocation and that any planned re-development in Totton should include the

requirement to consider the impact of the development on local air quality and the

implementation of appropriate mitigation measures should they be required.

The Updating and Screening Assessment 2015 does not require the production of a Detailed

Assessment for any pollutant assessed as part of the Local Air Quality Management regime.

However the monitoring programme currently in place throughout the district using automatic

analysers and diffusion tubes will continue.


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Table of contents

1 Introduction ...................................................................................................... 9

1.1 Description of Local Authority Area ................................................................................... 9

1.2 Purpose of Report .............................................................................................................. 9

1.3 Air Quality Objectives ...................................................................................................... 10

1.4 Summary of Previous Review and Assessments ............................................................ 11

2 New Monitoring Data ..................................................................................... 17

2.1 Summary of Monitoring Undertaken ................................................................................ 17

2.2 Comparison of Monitoring Results with Air Quality Objectives ....................................... 30

3 Road Traffic Sources ..................................................................................... 54

3.1 Narrow Congested Streets with Residential Properties Close to the Kerb ..................... 54

3.2 Busy Streets Where People May Spend 1-hour or More Close to Traffic ....................... 54

3.3 Roads with a High Flow of Buses and/or HGVs. ............................................................. 55

3.4 Junctions .......................................................................................................................... 55

3.5 New Roads Constructed or Proposed Since the Last Round of Review and

Assessment ..................................................................................................................... 56

3.6 Roads with Significantly Changed Traffic Flows .............................................................. 56

3.7 Bus and Coach Stations .................................................................................................. 56

4 Other Transport Sources ............................................................................... 57

4.1 Airports ............................................................................................................................. 57

4.2 Railways (Diesel and Steam Trains) ............................................................................... 57

4.3 Ports (Shipping) ............................................................................................................... 58

5 Industrial Sources .......................................................................................... 59

5.1 Industrial Installations ...................................................................................................... 59

5.2 Major Fuel (Petrol) Storage Depots ................................................................................. 60

5.3 Petrol Stations.................................................................................................................. 60

5.4 Poultry Farms................................................................................................................... 61

6 Commercial and Domestic Sources ............................................................. 62

6.1 Biomass Combustion – Individual Installations ............................................................... 62

6.2 Biomass Combustion – Combined Impacts ..................................................................... 63

6.3 Domestic Solid-Fuel Burning ........................................................................................... 63

7 Fugitive or Uncontrolled Sources ................................................................. 64

8 Conclusions and Proposed Actions ............................................................. 65

8.1 Conclusions from New Monitoring Data .......................................................................... 65

8.2 Conclusions from Assessment of Sources ...................................................................... 72

8.3 Proposed Actions ............................................................................................................. 72

9 References ...................................................................................................... 74


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List of Tables

1.1 Air quality objectives

1.2 Previous air quality reports

1.3 Locations of air quality objective exceedances

1.4 Areas of previous interest

2.1 Details of automatic monitoring sites

2.2 Details of non-automatic monitoring sites

2.3 Results of automatic monitoring for nitrogen dioxide:

Comparison with annual mean objective

2.4 Results of automatic monitoring for nitrogen dioxide:

Comparison with hourly mean objective

2.5 Results from nitrogen dioxide diffusion tubes in 2014

2.6 Results from nitrogen dioxide diffusion tubes (2008-2014)

2.7 Results of automatic monitoring for PM10:

Comparison with annual mean objective

2.8 Results of automatic monitoring for PM10 :

Comparison with 24hour mean objective

2.9 Results of automatic monitoring of sulphur dioxide:

Comparison with objectives

List of Figures

1.1 Totton Air Quality Management Area

1.2 Lyndhurst Air Quality Management Area

1.3 Fawley Air Quality Management Area (revoked)

2.1 Maps of automatic monitoring sites

2.2 Maps of non-automatic monitoring sites

2.3 Trends in annual mean nitrogen dioxide concentrations

2.4 Trends in hourly mean nitrogen dioxide concentrations

2.5 Trends in annual mean nitrogen dioxide concentrations (diffusion tube sites)

2.6 Trends in annual mean PM10 concentrations

2.7 Trends in 24 hour mean PM10 concentrations

2.8 Trends in 15 min mean sulphur dioxide concentrations

8.1 Location of diffusion tube monitoring sites 4a and 4b


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Appendices

Appendix A: Part A permitted processes within New Forest district

Appendix B: QA/QC

Local bias correction factor spreadsheets

Appendix C: Full data set – nitrogen dioxide automatic monitoring hourly means

Appendix D: Annualised calculations for short term data sets

Appendix E: Adjustment for relevant exposure

Appendix F: Full data set – diffusion tube monitoring results

Appendix G: Detailed information regarding the decision to progress to revoke the Totton Air Quality Management Area


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1 Introduction

1.1 Description of Local Authority Area

The New Forest District lies to the south-western corner of Hampshire, between the large

conurbations of Southampton and Christchurch/Bournemouth and Poole. The District covers

75,100 hectares (290 sq. miles) and has a diverse environment, including the New Forest

(and associated New Forest National Park) that covers approximately three quarters of the

district comprising of mainly protected heath lands and forests, a coastline of 64km, areas of

industry, towns and villages. The total population of the District is 176,800 (ONS, 2013).

Along Southampton Water much of the shoreline is influenced by urban and industrial

development, including 13 (Part A) permitted processes, as listed in Appendix A, under the

Pollution Prevention and Control (England and Wales) Regulations 2000. The local

landscape is dominated by a refinery, one of the largest in Europe, other processes include a

gas fired power station, energy recovery facilities and chemical installations.

1.2 Purpose of Report

This report fulfils the requirements of the Local Air Quality Management (LAQM) process as

set out in Part IV of the Environment Act (1995), the Air Quality Strategy for England,

Scotland, Wales and Northern Ireland 2007 and the relevant Policy and Technical Guidance

documents. The LAQM process places an obligation on all local authorities to regularly

review and assess air quality in their areas, and to determine whether or not the air quality

objectives are likely to be achieved. Where exceedences are considered likely, the local

authority must then declare an Air Quality Management Area (AQMA) and prepare an Air

Quality Action Plan (AQAP) setting out the measures it intends to put in place in pursuit of

the objectives.

The objective of this Updating and Screening Assessment is to identify any matters that have

changed which may lead to risk of an air quality objective being exceeded. A checklist

approach and screening tools are used to identify significant new sources or changes and

whether there is a need for a Detailed Assessment. The Updating and Screening

Assessment should provide an update of any outstanding information requested previously in

Review and Assessment reports.


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1.3 Air Quality Objectives

The air quality objectives applicable to LAQM in England are set out in the Air Quality

(England) Regulations 2000 (SI 928), The Air Quality (England) (Amendment) Regulations

2002 (SI 3043), and are shown in Table 1.1. This table shows the objectives in units of

microgrammes per cubic metre g/m3 (milligrammes per cubic metre, mg/m3 for carbon

monoxide) with the number of exceedences in each year that are permitted (where

applicable).

Table 1.1 Air Quality Objectives included in Regulations for the purpose of LAQM in England

Pollutant

Air Quality Objective Date to be achieved by Concentration Measured as

Benzene 16.25 µg/m3 Running annual mean 31.12.2003

5.00 µg/m3 Running annual mean 31.12.2010

1,3-Butadiene 2.25 µg/m3 Running annual mean 31.12.2003

Carbon monoxide 10.0 mg/m3 Running 8-hour mean 31.12.2003

Lead 0.5 µg/m3 Annual mean 31.12.2004

0.25 µg/m3 Annual mean 31.12.2008

Nitrogen dioxide

200 µg/m3 not to be exceeded more than

18 times a year 1-hour mean 31.12.2005

40 µg/m3 Annual mean 31.12.2005

Particles (PM10) (gravimetric)

50 µg/m3, not to be exceeded more than


40 µg/m3 Annual mean 31.12.2004

Sulphur dioxide



125 µg/m3, not to be exceeded more than 3

times a year 24-hour mean 31.12.2004


35 times a year

15-minute mean 31.12.2005


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1.4 Summary of Previous Review and Assessments

The continuous process of Review and Assessment started in 1998 for New Forest District

Council. Table 1.2 outlines reports produced and the outcomes of the report’s findings.

Table 1.2 Previous air quality reports

Year Report Outcomes 1998 I

st Stage Review &

Assessment Further investigation for CO, benzene, 1,3-butadiene, lead, NO2, PM10 and SO2 Areas of concern; Marchwood, Hythe, Holbury, Fawley, Totton, Cadnam, Ringwood, New Milton

2000 2nd

& 3rd

Stages Review & Assessment

No predicted exceedences of the objectives for any pollutant, but installation of automatic monitors to be considered in Fawley, Ringwood and Holbury

2002 Review & Assessment Automatic monitors installed. No predicted exceedences of the objectives for any pollutant

2003 Updating & Screening Assessment

Detailed Assessment required for benzene (Holbury/Fawley area), NO2 (Totton and Lyndhurst) and SO2 (Fawley)

2004 Modelling Report (Faber Maunsell)

For benzene and SO2 in the Holbury and Fawley area

2004 Detailed Assessment No likely exceedence of benzene and SO2 objectives. Likely exceedence of the annual mean objective for NO2 in Totton and Lyndhurst

2005 Progress Report Exceedence of the annual mean objective for NO2 in Totton and Lyndhurst Monitoring shows likely exceedence of the 15 minute mean objective for SO2 in Fawley

2005 Declaration of Air Quality Management Area’s (AQMA’s)

Totton – NO2 (annual mean) Lyndhurst – NO2 (annual mean) Fawley – SO2 (15 min mean)


No requirement to proceed to a Detailed Assessment

2006 Further Assessment Totton and Lyndhurst – main source from traffic Fawley – main source from industry Retain AQMA’s

2006 Modelling Report (AEA Technology)

For predicted NO2 concentrations concerning proposed traffic scenarios within Lyndhurst AQMA

2007 Progress Report Exceedences of NO2 annual mean objective in Totton and Lyndhurst

2008 Progress Report Exceedences of NO2 annual mean objective in Totton and Lyndhurst. Detailed Assessment for NO2 in Ringwood Rd, Totton (outside current AQMA) for exceedence of annual mean objective.

2008 Formal adoption of Action Plans

Totton – NO2 Lyndhurst – NO2 Fawley – SO2


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Year Report Outcomes


For proposed traffic scenarios within Lyndhurst Air Quality Action Plan – recommendation to forward 2 options

2008 Monitoring Report (AEA Technology)

6 month survey of PM10 in Totton and Lyndhurst. No requirement for further action.


Detailed Assessments required for NO2 (A31 and Lymington concerning traffic) and for PM10 (Sway concerning poultry farms)

2009 Action Plan Progress Report Updating progression of actions within Action Plans for the declared AQMA’s

2010 Progress Report Detailed Assessments required for NO2 (Shrubbs Hill Rd and Gosport Lane, Lyndhurst concerning traffic) Updating progression of actions within Action Plans for the declared AQMA’s

2011 Detailed Assessment (poultry farm)

Likely exceedence of the 24hr mean objective for PM10 in Sway


For proposed traffic scenarios within Lyndhurst Air Quality Action Plan – some reductions in NO2 predicted but at the expense of vehicle flow.

2011 Progress Report Detailed Assessment required for NO2 (Shrubbs Hill Rd and Gosport Lane, Lyndhurst concerning traffic) Updating progression of actions within Action Plans for the declared AQMA’s

2012 Detailed Assessment (AEA Technology)

For Shrubbs Hill Road and Gosport Lane, Lyndhurst – likely exceedance of the annual mean objective for NO2 in Gosport Lane but not for Shrubbs Hill Road (both locations outside current AQMA)


Revocation recommended for Fawley AQMA (SO2 15 min mean objective) without the requirement to produce a Detailed Assessment. Requirement to declare an AQMA in Sway (PM10 24hr mean objective)

2013 Revocation of AQMA Fawley AQMA (SO2 15 min mean objective) revoked in April 2013

2013 Progress Report Current AQMA’s in Lyndhurst and Totton (NO2 annual mean objective) On advice from air quality helpdesk:

To continue monitoring in Gosport Lane and Shrubbs Hill Road, Lyndhurst before deciding whether to extend current AQMA or declare new AQMA’s (NO2 annual mean objective)

Not to declare AQMA in Sway (PM10 24hr mean objective) due to changes in air quality advice

To consider revoking Totton AQMA (NO2 annual mean objective) due to no recent exceedances at monitoring sites

2014 Progress Report Current AQMA’s in Lyndhurst and Totton (NO2 annual mean objective) On advice from air quality helpdesk:

To continue monitoring in Gosport Lane and Shrubbs Hill Road, Lyndhurst before deciding whether to extend current AQMA or declare new AQMA’s (NO2 annual mean objective)

To consider revoking Totton AQMA (NO2 annual mean objective) due to no recent exceedances at monitoring sites but to take into account planning application for a large brownfield development in close proximity to the AQMA.


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Current Air Quality Management Areas New Forest District Council has two current Air Quality Management Areas. These are

detailed below;

Totton

Air Quality Management Area (Figure 1.1) declared with respect to likely exceedence of the

annual mean objective for nitrogen dioxide.

Figure 1.1 Totton Air Quality Management Area

© Crown copyright. All rights reserved New Forest District Council licence no. 10002622013


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Lyndhurst

Air Quality Management Area (Figure 1.2) declared with respect to likely exceedence of the


Figure 1.2 Lyndhurst Air Quality Management Area



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Revoked Air Quality Management Areas

In April 2013 New Forest District Council formally revoked the Air Quality Management Area

in Fawley. The Air Quality Management Area was declared in December 2005 for the likely

exceedance of the 15 min mean objective for sulphur dioxide (Figure 1.3 details).

Figure 1.3 Fawley Air Quality Management Area (revoked April 2013)


Current identified locations of Air Quality Objective exceedances

New Forest District Council has identified two locations where either monitoring or modelling

has determined a likely exceedance of the Air Quality Objectives, however to date Air Quality

Management Areas have not been declared. The details of these locations are shown (Table

1.3).


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Table 1.3 Identified locations of Air Quality Objective exceedances

Location Air Quality Objective

Exceeded

Report / Work

Identified

Comments

Gosport

Lane,

Lyndhurst

(traffic)

NO2 annual mean 2010 from

monitoring and in

2012 in Detailed

Assessment

(modelling)

No AQMA declared to

date due to a new traffic

scheme operating in

Lyndhurst which may

impact NO2 results and on

advice from air quality

helpdesk. Discussed in

Section 8

Shrubbs Hill

Road,

Lyndhurst

(traffic)

NO2 annual mean 2010 from

monitoring and in

2012 in Detailed

Assessment

(modelling)

No AQMA declared to

date due to a new traffic

scheme operating in

Lyndhurst which may

impact NO2 results and on

advice from air quality

helpdesk. Discussed in

Section 8

Previously identified locations of Air Quality Objective exceedances

Since the beginning of the Local Air Quality Management process there have been a number

of locations which have been identified as possibly exceeding air quality objectives. However

further work (including monitoring and modelling) has determined there was no requirement

to proceed to an Air Quality Management Area. These locations are shown in Table 1.4.

Table 1.4 Areas of previous interest

Location Pollutant Year of Investigation

Holbury and Fawley Benzene 2004

Lyndhurst and Totton PM10 2008

Totton (outside AQMA) NO2 2009

Stoney Cross (A31) NO2 2010

Lymington NO2 2011

Sway PM10 2011-12


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2 New Monitoring Data

2.1 Summary of Monitoring Undertaken

2.1.1 Automatic Monitoring Sites

New Forest District Council operated 4 automatic monitoring sites during 2014. The Council

also had access to monitoring results from an automatic monitoring site in Marchwood, which

was installed as part of a planning condition concerning an industrial premise in the vicinity.

The Marchwood automatic monitoring site was closed at the end of 2014 with the agreement

of the site operator (Marchwood Power), the regulator (Environment Agency) and New

Forest District Council who determined the terms of the planning condition had been fulfilled

and monitoring results had not indicated an exceedance of the air quality objectives.

Maps showing the locations of the automatic monitoring sites are shown in Figure 2.1, with

the site details summarised in Table 2.1. Details of the QA/QC for the automatic monitoring

are shown in Appendix B.

Figure 2.1 Maps of Automatic Monitoring Sites

Totton (CM1)

The Totton site is located in a roadside location to monitor for emissions from a road. This

site is located between the road and residential properties, some 5m from the building

façade. Therefore the site is not representative of relevant public exposure.

© Crown copyright. All rights reserved New Forest District Council licence no. 100026220 2013


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Lyndhurst (CM2)

The Lyndhurst site is located on the first floor of an office. The office is situated within a

street canyon and is representative of relevant public exposure because it is adjacent

properties are residential flats.



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Fawley (CM3)

The Fawley site is located within a village hall, which includes a children’s nursery and pre-

school, at the centre of the village of Fawley. This site is representative of relevant public

exposure.


Holbury (CM4)

The Holbury site is located in a school grounds (Holbury Manor Infants School) within 1km

(to the boundary) of a large industrial site, including a refinery, therefore the site is

representative of relevant public exposure.



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Marchwood (CM5)

The automatic site at Marchwood came into use in October 2007 and is owned and operated

by Marchwood Power. Marchwood Power is an industrial (Part A) premises which was

operational between December 2009 and December 2014. As part of their planning and

IPPC permit conditions nitrogen dioxide and particulate concentrations prior to and during

operation were monitored, in addition to a submitted air quality assessment.

The Council assisted Marchwood Power in selecting an appropriate automatic monitoring

site for nitrogen oxides and particulates in Marchwood and also maintains a number of

nitrogen dioxide diffusion tube sites throughout Marchwood for the benefit of Marchwood

Power’s planning and permit conditions. The monitoring results from these sites are public

therefore the automatic site and diffusion tube results are included in the reported monitoring

results.



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Table 2.1 Details of Automatic Monitoring Sites

Site Name Site ID Site Type X OS

Grid Ref Y OS

Grid Ref

Inlet Height

(m)

Pollutants Monitored

In AQMA?

Particulate Monitoring Technique

Relevant Exposure?

(Y/N with distance (m)

from monitoring site

to relevant exposure)

Distance to Kerb of Nearest

Road (m) (N/A if not

applicable)

Worst-Case

Exposure?

Totton CM1

Roadside

436188 113237 1.75 NO2 PM10

Y TEOM N (5m) 1.5 N

Lyndhurst CM2

Kerbside

429859 108204 3.00 NO2 Y - Y (1m) 0.6 Y

Fawley CM3

Industrial

445885 103248 5.00 SO2 Y - Y (5m) N/A Y

Holbury CM4

Industrial

442948 103932 3.00 SO2

PM10 N TEOM Y (8m) N/A N

Marchwood CM5

Industrial

439075 111152 2.00 NO2

PM10 N

Partisol and

BAM N (15m) N/A N


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2.1.2 Non-Automatic Monitoring Sites

Diffusion tubes are used throughout the New Forest district to monitor nitrogen dioxide

concentrations. During 2014 the Council exposed 55 diffusion tubes over 45 sites, which

included 3 triplicate and 4 duplicate co-located sites.

Maps showing the nitrogen dioxide diffusion tube locations in the New Forest district are

shown in Figure 2.2. The numbers stated on the maps correlate to the diffusion tube site

numbers listed in Table 2.2.

Details of the diffusion tube sites are shown in Table 2.2. Details of the QA/QC for the non-

automatic monitoring are shown in Appendix B

Figure 2.2 Maps of Non-Automatic Monitoring Sites

Nitrogen dioxide diffusion tube sites in New Forest district



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Nitrogen dioxide diffusion tube sites in Lyndhurst



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Nitrogen dioxide diffusion tube sites in Totton



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Table 2.2 Details of Non-Automatic Monitoring Sites

Site Name Site ID Site Type

X OS Grid Ref

Y OS Grid Ref


In AQMA?

Is monitoring collocated with a continuous analyser (Y/N)

Relevant Exposure?

(Y/N with distance (m) to relevant exposure)

Distance to kerb of nearest road

(m)

(N/A if not applicable)

Worst-case Location?

Lyndhurst

Lyndhurst Rd, Goose Green

1 Kerbside

429991

107583 NO2 N N N (4m) 0.4 Y

1, Foxlease Terrace, Shrubbs Hill Rd

2 Roadside

429928

107687 NO2 N N Y(1m) 1.5 Y

Shrubbs Hill Rd

3 Roadside

429934

107698 NO2 N N N* 2.2 Y

The Orchards, Shrubbs Hill Rd

4a Roadside

429895

107770 NO2 N N Y (1m) 3 Y


4b Roadside

429895

107770 NO2 N N Y (1m) 5 Y

Shrubbs Hill Rd

5 Roadside

429758

107972

NO2 N N N (13m) 2 Y

Little Queens, Shrubbs Hill Rd

6 Roadside

429689

108111 NO2 N N Y (1m) 6 Y

Queens House

7 Roadside

429710

108128 NO2 N N N* 5 Y

School, High St.

8 Roadside

429767

108205 NO2 Y N Y (1m) 6 Y

15, High St.

9 Kerbside

429864

108213 NO2 Y N Y (1m) 1.25 Y


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Site Name Site ID

Site Type

X OS Grid Ref

Y OS Grid Ref


In AQMA?

Is monitoring collocated with a continuous analyser (Y/N)

Relevant Exposure?



(m)



Lyndhurst

14, High St. (analyser)

10 Kerbside

429858

108205 NO2 Y Y Y (1m) 0.9 Y

16, High St.

11 Kerbside

429875

108207 NO2 Y N Y (1m) 1.55 Y

2a, Romsey Rd

12 Roadside

429891

108245 NO2 Y N N (3m) 2 Y

22, Romsey Rd

13 Roadside

429911

108402 NO2 N N N* 2.3 Y

28, High St.

14 Roadside

429933

108200 NO2 Y N N (5m) 4 Y

65, High St.

15 Roadside

430026

108206 NO2 Y N Y (1m) 1.8 Y

2, Gosport Lane

16 Roadside

430079

108147 NO2 N N Y (1m) 2.2 Y

South View, Gosport Lane

17

Roadside

430092

108077 NO2 N N N (5m) 2 Y

Lyndhurst Park Hotel

18 Roadside

430162

108173 NO2 N N N (5m) 1.88 Y

Baytree Cottage, Bournem’th Rd

19 Roadside

429169

108129

NO2 N N N (1m) 2 N


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Site Name

Site ID

Site Type

X OS Grid Ref

Y OS Grid Ref


In AQMA

?

Is monitoring collocated

with a continuous

analyser (Y/N

Relevant Exposure?



(m) (N/A if not applicable)


Totton

Junction Rd (analyser) 20 Roadside

436189

113235 NO2 Y Y N (7m) 2 Y

30, Junction Rd 21 Kerbside

436210

113210 NO2 Y N N (3m) 1 Y

23, Junction Rd 22 Kerbside

436236

113153 NO2 Y N N (3m) 1 Y

25, Junction Rd 23 Roadside

436232

113156 NO2 Y N Y (1m) 4 Y

26, Rumbridge St. 24 Roadside

436205

113019 NO2 Y N N (2m) 1.5 Y

2, Eling Lane 25 Roadside

436307

113077 NO2 Y N Y (1m) 2 Y

Elingfield Court, High St. 26 Roadside

436383

113135 NO2 N N N (12m) 2 Y

55, High St. 27 Roadside

436476

113214 NO2 N N Y (1m) 4 Y

114, Commercial Rd 28 Kerbside

436364

113322 NO2 N N Y (1m) 1 Y

Commercial Rd

29 Roadside 436457

113354 NO2 N N N* 1 N

83, Ringwood Rd 30 Roadside

435706

113215 NO2 N N Y (1m) 4 Y


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Site Name

Site ID

Site Type

X OS Grid Ref

Y OS Grid Ref


In AQMA

?


with a continuous

analyser (Y/N)

Relevant Exposure?



(m) (N/A if not applicable)


Totton

Ringwood Rd / Maynard Rd roundab’t

31 Roadside

435834

113260 NO2 Y N N* 2 Y

Asda roundab’t 32 Roadside

435927

113226 NO2 Y N N* 2 Y

1, Rose Rd 33 Roadside

436374

112929 NO2 N N N (5m) 2 N

Other locations

A31, Stoney Cross 34 Roadside

425877

111778 NO2 N N Y (14m) 20 N

Rockbourne School 35 Rural

411569

118098 NO2 N N Y (1m) N/A N

11, Bilberry Drive, Marchwood 36 Industrial

438500

110629 NO2

N

N Y (5m) N/A N

Shorefield Rd, Marchwood 37 Industrial

438765

111006 NO2 N N Y (6m) N/A N

3 Magazine Lane, Marchwood (adj to)

38 Industrial

439075

111152 NO2 N Y Y (15m) N/A Y

9, Boardwalk Way, Marchwood 39 Industrial

439106

111409 NO2 N N Y (4m) N/A Y

Autumn Road, Marchwood 40 Industrial

439174

110367 NO2 N N Y (5m) N/A N


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Note: 1. All diffusion tubes are located at a height between 2.5m and 3m 2. *indicates sites which have no local relevant exposure relating to the site, for example at places of work, hotels, isolated lamp-posts. These sites may

have been selected for planning or general air quality modelling purposes to obtain general air quality information

Site Name

Site ID

Site Type X OS Grid Ref

Y OS Grid Ref


In AQMA?


with a continuous

analyser (Y/N)

Relevant Exposure? (Y/N with

distance (m) to relevant exposure)

Distance to kerb of nearest road (m)



Other locations

Marchwood School, Twiggs Lane

41 Suburban

438363

109694 NO2 N N Y (1m) 25 N

Teachers Way, Holbury 42 Industrial

442947

103931 NO2 N N Y(1m) N/A Y

Jubilee Hall, The Square, Fawley 43 Industrial

445881

103247 NO2

Y (for

SO2) N Y(1m) N/A Y

School field, Beaulieu 44 Rural

438836

102115 NO2 N N Y (1m) N/A N


LAQM USA 2015 30

2.2 Comparison of Monitoring Results with Air Quality Objectives

In order to determine whether the air quality objectives are being met throughout the district,

monitoring results are compared with the objectives set by Government as shown in Table

1.1. As previously discussed, during 2014 the pollutants monitored in the New Forest were

nitrogen dioxide, particulates (PM10) and sulphur dioxide. The results are summarised below.

2.2.1 Nitrogen Dioxide (NO2)

As stated in Table 1.1 there are two objectives for nitrogen dioxide, an annual mean and an

hourly mean. The annual mean is 40g/m3 and the hourly objective is 200µg/m3 not to be

exceeded more than 18 times a year.

During 2014 the automatic monitoring site at Totton did not monitor an exceedance of the

annual mean objective. However the automatic monitoring site at Lyndhurst and 4 diffusion

tube sites in Lyndhurst exceeded the annual mean objective. All of the exceeding sites at

Lyndhurst are within an Air Quality Management Area and represent relevant public

exposure, with the exception of 2a Romsey Road, which is a roadside site located on a

telegraph pole, adjacent to a set of traffic lights.

Neither automatic site recorded an exceedence of the 1-hour mean objective for nitrogen

dioxide.

The monitoring results are detailed below.

Automatic Monitoring Data

New Forest District Council monitors nitrogen dioxide automatically at two sites; Totton and

Lyndhurst. A further site at Marchwood is operated by Marchwood Power however these

results are publically available and therefore included.

The results from the automatic nitrogen dioxide monitoring sites for the years 2008 – 2014

are shown in Tables 2.3 and 2.4, and Figures 2.3 and 2.4 for the monitored trends. A

graphical data set for the full year (2014) is shown in Appendix C for each site as an hourly

mean.


LAQM USA 2015 31

Table 2.3 Results of Automatic Monitoring of Nitrogen Dioxide: Comparison with Annual Mean Objective

Site ID

Site Name Site Type Within

AQMA?

Valid Data Capture 2014

% a

Annual mean

objective

(g/m3)

Annual Mean Concentration (µg/m3)

2008b 2009b 2010b 2011b 2012b 2013b 2014b

CM1 Totton Roadside Y 86 40 30 28 29 28 28 28 26*

CM2 Lyndhurst Kerbside Y 96 40 46 46 46 43 40 41 41

CM5 Marchwood Industrial N 70 40 23 19 21 17 19 20 18(16)* Notes: 1.

a i.e. data capture for the full calendar year (e.g. if monitoring was carried out for six months the maximum data capture for the full calendar year would be 50%)

2. b means should be “annualised” as in Box 3.2 of TG(09) (http://laqm.defra.gov.uk/technical-guidance/index.html?d=page=38), if valid data capture is less than 75% result in brackets (as

shown in Appendix D) 3. * data capture in 2014 less than 90% therefore results should be viewed with caution and used as guidance only

Figure 2.3 Trends in Annual Mean Nitrogen Dioxide Concentrations measured at Automatic Monitoring sites

10

15

20

25

30

35

40

45

50

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

An

nu

al M

ean

NO

2 C

on

cen

trat

ion

(µ

gm-3

)

Year

Totton

Lyndhurst

Marchwood

Objective

http://laqm.defra.gov.uk/technical-guidance/index.html?d=page=38



LAQM USA 2015 32

Table 2.4 Results of Automatic Monitoring for Nitrogen Dioxide: Comparison with 1-hour mean Objective

Site ID

Site Name Site Type Within

AQMA?

Valid Data Capture 2013 % a

Hourly

objective (number of exceedences

> 200 g/m3)

Number of Hourly Means > 200µg/m3

2008b 2009b 2010b 2011b 2012b 2013b 2014b

CM1 Totton Roadside Y 86 18 0 0 1 0 0 0 0

CM2 Lyndhurst Kerbside Y 96 18 4 2 2 1 0 1 1

CM5 Marchwood Industrial N 70 18 0 0 0 0 0 0 0 Notes:

1. a i.e. data capture for the full calendar year (e.g. if monitoring was carried out for six months the maximum data capture for the full calendar year would be 50%)

2. b If the data capture for full calendar year is less than 90%, include the 99.8

th percentile of hourly means in brackets

Figure 2.4 Trends in Hourly Mean Objective for NO2 measured at Automatic Monitoring sites

0

2

4

6

8

10

12

14

16

18

20

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

no

. of

exc

ee

dan

ces

> 2

00

µgm

-3

as a

n h

ou

rly

ave

rage

Year

Totton

Lyndhurst

Marchwood

Objective


LAQM USA 2015 33

The monitoring results from the automatic sites are reported as a whole number, and in 2014

show consistent results compared to the results from 2013. It is noted that Lyndhurst is

reporting an exceedance of the annual mean objective for nitrogen dioxide, although the

actual result for 2014 is reported as 40.5µg/m3 a slight decrease from the actual 2013 annual

mean nitrogen dioxide result of 40.6µg/m3 (the 2012 result was 40.4 µg/m3).

It is noted that the trend data for the automatic monitoring site at Lyndhurst shows an overall

decrease in nitrogen dioxide concentrations. In 2011 following 3 years (2008-2010) of a

consistent exceedance of 46µg/m3, a decrease in the nitrogen dioxide annual mean was

monitored at 43µg/m3 with a further decrease monitored in 2012 of 3µg/m3 to an annual

mean concentration of 40µg/m3, followed by a reported 1µg/m3 increase in 2013 and 2014.

However as noted above the actual difference in monitored results between 2012 and 2014

is 0.2µg/m3 (40.4µg/m3 2012 – 40.6µg/m3 2014).

It is noted that the automatic monitoring sites at Totton and Marchwood monitored

concentrations well below the annual mean and hourly mean objectives for nitrogen dioxide,

with neither site monitoring any significant variations in concentrations over recent years.

Overall both sites have monitored a general decrease in the annual mean concentration for

nitrogen dioxide.

Lyndhurst and Totton sites are within current Air Quality Management Areas, and the

Lyndhurst site represents relevant public exposure. It should be noted that the declaration of

the Air Quality Management Area for Totton was based on diffusion tube data (2004 and

2005) and not the data collated from the automatic monitoring site.

Neither Lyndhurst, Totton nor Marchwood monitored an exceedence of the hourly objective

for nitrogen dioxide (18 exceedances greater than 200µg/m3 over the year). There has been

1 exceedance greater than 200µg/m3 over an hourly average at Lyndhurst and 0

exceedances at Totton and Marchwood during 2014.


LAQM USA 2015 34

Diffusion Tube Monitoring Data

The results from the nitrogen dioxide diffusion tube monitoring sites for 2014 are shown in

Table 2.5, while Table 2.6 shows the results from 2008 - 2014. Figure 2.5 show the trends

from the diffusion tubes for sites in Lyndhurst which have often shown exceedances of the


Calculations regarding the annualisation of data are provided in Appendix D, adjustment for

relevant exposure in Appendix E and the data set for the full year (2014) is given in Appendix

F for each diffusion tube site.

The tables report the annual mean results which have been bias adjusted using either locally

or nationally derived factors. Details of the use and selection of bias correction factors are

given in Appendix B.


LAQM USA 2015 35

Table 2.5 Results of Nitrogen Dioxide Diffusion Tubes (2014)

Site ID Location Site Type

Within AQMA?

Triplicate (T) or Co-located

(C) Tube

Full Calendar Year Data Capture 2014

(%) a

Confirm if data has been distance

corrected (Y/N)

2014 Annual Mean Concentration (µg/m3)

(Bias Adjusted) b

Lyndhurst

1

Lyndhurst Rd, Goose Green

Kerbside N - 83 N 28.96

2

1, Foxlease Tr, Shrubbs Hill Rd

Roadside N - 83 N 32.73

3

Shrubbs Hill Rd

Roadside N - 59 N 32.66a

4a



4b



5

Shrubbs Hill Rd

Roadside N - 67 N 29.06a

6

Little Queens, Shrubbs Hill Rd


7

Queens House


8

School, High St.

Roadside Y - 100 N 26.70

9

15, High St.

Kerbside Y - 92 N 42.70*

10

14, High St. (analyser)

Kerbside Y T 92 N 40.12*


LAQM USA 2015 36


Within AQMA?


(C) Tube


(%) a


corrected (Y/N)


(Bias Adjusted) b

11

16, High St.

Kerbside Y - 92 N 43.73*

12

2a, Romsey Rd

Roadside Y - 75 N 40.30*

13

22, Romsey Rd


14

28, High St.

Roadside Y C 92 N 29.19

15

65, High St.

Roadside Y - 100 N 33.66*

16

2, Gosport Lane


17 South View, Gosport Lane

Roadside N - 67 Y 26.20a,c

18

Lyndhurst Park Hotel


19 Bournem’th Rd Roadside N - 83 N 29.17

Totton

20 Junction Rd (analyser) Roadside Y T 92 N 25.61

21 30, Junction Rd

Kerbside Y - 100 N 27.41

22 23, Junction Rd

Kerbside Y - 92 N 32.98


LAQM USA 2015 37


Within AQMA?


(C) Tube


(%) a


corrected (Y/N)


(Bias Adjusted) b

23 25, Junction Rd

Roadside Y - 100 N 23.31

24 26, Rumbridge St. Roadside Y - 100 N 28.18

25 2, Eling Lane Roadside Y - 92 N 27.58

26 Elingfield Court, High St. Roadside N - 83 N 25.06

27 55, High St. Roadside N - 83 N 23.05

28 114, Commercial Rd

Kerbside N - 92 N 26.47

29 Commercial Road Roadside N - 75 N 21.92

30 83 Ringwood Rd Roadside N - 92 N 24.88

31 Maynard Rd roundab’t Roadside Y - 92 N 27.99

32 Asda roundab’t Roadside Y - 92 N 26.47

33 1, Rose Rd Roadside N - 100 N 20.44

Other sites

34 A31, Stoney Cross Roadside N C 100 N 31.42


LAQM USA 2015 38


Within AQMA?


(C) Tube


(%) a


corrected (Y/N)


(Bias Adjusted) b

35 Rockbourne School Rural N - 100 N 8.02

36 11, Bilberry Drive, Marchw’d

Industrial N - 100 N 15.52

37 Shorefield Rd, Marchwood Industrial N - 100 N 20.24

38 3 Magazine Lane, Marchw’d

Industrial N T 100 N 17.84

39 9, Boardwalk Way, Marchw’d


40 Autumn Road, Marchwood Industrial N - 100 N 17.35

41 School, Twiggs Lane Suburban N - 100 N 19.14

42 Teachers Way, Holbury Industrial N C 100 N 11.32

43 Jubilee Hall, The Square, Fawley


44 School field, Beaulieu Rural N - 83 N 10.22

Notes: 1. Results in red and bold = exceedence of the NO2 annual mean AQS objective of 40µg/m3

2. Results underlined are close to the NO2 annual mean objective

3. Results in red, bold and underlined = annual mean > 60µg/m

3, indicating a potential exceedence of the NO2 hourly mean air quality objective

4. *denotes sites in Lyndhurst which were locally bias adjusted due to locations (including analyser) being within a street canyon


LAQM USA 2015 39

5.

a Means results should be “annualised” as in Box 3.2 of TG(09) if full calendar year data capture is less than 75% (as shown in Appendix D)

6.

b Diffusion tube sites have been locally or nationally bias adjusted depending on the location as shown below

(further explanation given in Appendix B):

Year

Lyndhurst local bias adjustment factor (street canyon)

Totton local bias adjustment factor

National bias adjustment factor

2014 0.87 0.72 0.91

7.

c Diffusion tube results which have been adjusted to account for relevant exposure using adjustment calculator http://laqm.defra.gov.uk/tools-monitoring-data/no2-

falloff.html (as shown in Appendix E)


http://laqm.defra.gov.uk/tools-monitoring-data/no2-falloff.html

http://laqm.defra.gov.uk/tools-monitoring-data/no2-falloff.html


LAQM USA 2015 40

Table 2.6 Results of Nitrogen Dioxide Diffusion Tubes (2008 - 2014)

Site ID

Site Type

Within AQMA?

Annual Mean Concentration (µg/m3) - Adjusted for Biasb 2008

Bias Adjusted (see note)

2009 Bias Adjusted

(see note)

2010 Bias Adjusted

(see note)

2011 Bias Adjusted

(see note)

2012 Bias Adjusted

(see note)

2013 Bias Adjusted

(see note)

2014 Bias Adjusted

(see note) Lyndhurst

1

Kerbside N 23.97 22.56 24.83 25.59 27.78 28.62 28.96

2

Roadside N 31.56 32.79 33.07 30.93 33.05 34.24 32.73

3

Roadside N 33.78 35.26 33.80 28.49 30.53 28.75 32.66a

4a

Roadside N 38.92 40.33 42.62 37.92 43.58 44.73 39.83

4b

Roadside N - - - - - 32.98 32.92

5

Roadside N 32.95 34.21 34.29 32.47 33.01 32.13 29.06a

6

Roadside N 19.63 22.56 23.26 21.38 21.76 20.76 20.84

7

Roadside N 21.52 22.98 23.76 20.88 21.88 20.74a 20.78

8

Roadside Y 28.05 27.67 26.90 26.10 29.12 27.08 26.70

9

Kerbside Y 52.34* 48.92* 53.67* 45.03* 48.55* 46.77* 42.70*

10

Kerbside Y 47.02* 46.42* 46.36* 43.89* 39.67* 39.80* 40.12*

11

Kerbside Y 45.12* 46.83* 44.55* 44.23* 43.30* 43.21* 43.73*

12

Roadside Y 41.96* 42.34* 43.63* 39.83* 36.94* 37.79* 40.30*

13

Roadside N 28.09 29.06 25.98 27.64 29.51 29.55 29.17

14

Roadside Y 30.62 30.95 29.83 28.47 29.46 29.24 29.19

15

Roadside Y 35.46* 34.00* 36.54* 34.26* 35.13* 34.63* 33.66*


LAQM USA 2015 41

Site ID

Site Type

Within AQMA?



2009 Bias Adjusted

(see note)

2010 Bias Adjusted

(see note)

2011 Bias Adjusted

(see note)

2012 Bias Adjusted

(see note)

2013 Bias Adjusted

(see note)

2014 Bias Adjusted

(see note)

16 Roadside N 36.46 42.12 39.14 43.81 39.58 37.48 37.65

17

Roadside N - - - 29.49 33.64 36.50c 26.20a,c

18

Roadside N - 25.00 27.20 25.30 28.11 25.89 25.77

19

Roadside N 27.46 29.41 31.33 27.98 30.49 28.78 29.17

Totton

20 Roadside Y 30.51 27.00 27.38 27.85 29.27 27.98 25.61

21 Kerbside Y 32.64 27.16 27.13 26.01 30.55 30.76 27.41

22 Kerbside Y 42.23 33.23 32.72 34.47 38.59 33.00a 32.98

23 Roadside Y - 24.54 26.83 26.73 27.63 25.87 23.31

24 Roadside Y 35.20 26.43 29.82 29.02 33.51 30.92 28.18

25 Roadside Y 36.31 28.62 29.18 30.94 33.49 32.42 27.58

26 Roadside N 35.29 26.67 27.63 29.41 31.25 28.12 25.06

27 Roadside N - 26.46 29.27 27.94 29.46 26.43 23.05

28 Kerbside N 37.35 28.51 27.71 27.39 29.74 31.52 26.47

29 Roadside N - - - - - 26.31a 21.92

30 Roadside N 36.85 25.68 27.90 26.74 31.27 27.60 24.88

31 Roadside Y 35.09 28.85 28.56 32.65 34.73 30.83 27.99

32 Roadside Y 36.63 29.18 28.86 32.22 32.83 27.95 26.47


LAQM USA 2015 42

Site ID

Site Type

Within AQMA?



2009 Bias Adjusted

(see note)

2010 Bias Adjusted

(see note)

2011 Bias Adjusted

(see note)

2012 Bias Adjusted

(see note)

2013 Bias Adjusted

(see note)

2014 Bias Adjusted

(see note)

33 Roadside N 31.19 23.55 25.45 22.50 21.00 27.28a 20.44

Other sites

34 Roadside N 42.82 33.62 33.97 34.71 36.24 33.78 31.42

35 Rural N 9.51 8.41 10.55 8.15 9.08 10.67 8.02

36 Industrial N 19.10 15.92 17.99 15.09 16.74 16.31 15.52

37 Industrial N 26.12 21.60 25.41 19.38 22.15 22.83 20.24

38 Industrial N 22.84 17.46 20.92 16.58 20.72 20.52 17.84

39 Industrial N 24.46 17.71 22.75 17.66 21.28 20.86 19.29

40 Industrial N 20.96 18.33 19.43 18.07 19.85 21.10 17.35

41 Suburban N 23.21 20.71 20.95 18.81 21.38 20.64 19.14

42 Industrial N 15.99 12.68 14.96 12.31 13.31 14.18 11.32

43 Industrial N 20.45 16.68 17.71 15.50 16.42 16.45 14.40

44 Rural N 11.81 9.58 12.88 12.01 12.24 11.85 10.22

Notes:

1 * denotes sites in Lyndhurst which were locally bias adjusted due to locations (including analyser) being within a street canyon

2 In red and bold, exceedence of the NO2 annual mean AQS objective of 40µg/m3

3 Results underlined are close to the NO2 annual mean objective

4 a Means should be “annualised” as in Box 3.2 of TG(09) (http://laqm.defra.gov.uk/technical-guidance/index.html?d=page=38), if full calendar year data capture is less

than 75% (as shown in Appendix D)




LAQM USA 2015 43

5

b Diffusion tube sites have been locally or nationally bias adjusted depending on the location as shown below (further explanation given in Appendix B):

Year

National bias adjustment

factor

Lyndhurst local bias

adjustment factor

(locations within street

canyon)

Totton local bias

adjustment factor

Marchwood local bias

adjustment factor

2008 1.05 0.84 0.90 0.98

2009 0.90 0.86 0.73 0.87

2010 0.92 0.92 0.76 0.89

2011 0.89 0.90 0.81 0.91

2012 0.97 0.88 0.89 1.03

2013 0.95 0.88 0.84 0.98

2014 0.91 0.87 0.72 n/a

6 c Diffusion tube results which have been adjusted to account for relevant exposure using adjustment calculator http://laqm.defra.gov.uk/tools-monitoring-data/no2-

falloff.html (as shown in Appendix E)

//laqm.defra.gov.uk/tools-monitoring-data/


LAQM USA 2015 44

Figure 2.5 Trends in Annual Mean Nitrogen Dioxide Concentrations measured at Diffusion Tube Monitoring sites

20

25

30

35

40

45

50

55

60

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

An

nu

al m

ean

NO

2 C

on

cen

trat

ion

s (µ

gm

-3)

Year

School, High St

15 High St

14 High St

16 High St2

2a Romsey Rd

28 High St

65 High St

Objective


LAQM USA 2015 45

The diffusion tube monitoring show 4 sites have exceeded the nitrogen dioxide annual mean

objective in 2014. All these sites are located within the current Air Quality Management Area in

Lyndhurst. 2 of these sites (15 and 16 High Street) were reported as exceeding in 2013, whilst the

other 2 sites (14 High Street and 2a Romsey Road) have reported exceedances in the past.

It is noted that 2 diffusion tube sites have reported annual mean results close to the objective: The

Orchards, Shrubbs Hill Road and 2 Gosport Lane. The Orchards has monitored a decrease in the

annual mean concentration of nitrogen dioxide of ~5µg/m3 compared to the 2013 results, whilst 2

Gosport Lane reported a similar result to that in 2013 ~37.7µg/m3. Both these site have been the

subject of a Detailed Assessment in 2012 and The Orchards is being considered as a site of

relevant public exposure (see Section 8).

The overall trends for the Lyndhurst sites presented in Figure 2.5 show general increases and

decreases between 2005 – 2014. However it is my opinion that overall the sites are showing a

general trend in decreasing concentrations with regards to the annual mean nitrogen dioxide

objective over the monitoring period, particularly with those sites within the street canyon part of

the current Air Quality Management Area in Lyndhurst; 14, 15 and 16 High Street. In particular it is

noted that 15 High Street, which historically monitored the highest nitrogen dioxide concentrations

compared to all the diffusion tube monitoring sites in the New Forest district, monitored a decrease

in the annual mean concentration of ~5µg/m3 in 2014 which followed a decrease in 2013 of

~1µg/m3.

The diffusion tube sites outside of the street canyon in Lyndhurst, but still within the current Air

Quality Management Area; school, 2a Romsey Road, 28 and 65 High Street have shown more

consistency in the annual mean concentrations over the monitoring years (2005-2014).


LAQM USA 2015 46

2.2.2 PM10

New Forest District Council monitored for particulate matter (PM10) automatically at two sites;

Holbury and Totton during 2014. A further site at Marchwood is operated by Marchwood

Power however the results are publically available and therefore the results are also

included.

There are two objectives for PM10 (as stated in Table 1.1), an annual mean and a 24-hour

mean. The annual mean is set at 40g/m3 and the 24-hour objective is set at 50µg/m3 not to

be exceeded more than 35 times a year.

There were no exceedences of the PM10 objectives at Holbury, Totton or Marchwood during

2014.

The monitoring results are detailed below. The results from the automatic PM10 monitoring

sites for the years 2007 - 2014 are shown in Tables 2.7 and 2.8 for the annual and 24-hour

means with the trends shown in Figures 2.6 and 2.7.

Details of the QA/QC for the automatic monitoring and the data correction method are shown

in Appendix B.


LAQM USA 2015 47

Table 2.7 Results of Automatic Monitoring of PM10: Comparison with Annual Mean Objective

Site ID

Site Name

Site Type Within

AQMA?


Confirm Gravimetric Equivalent (Y or N/A)

Annual mean

objective

(g/m3)


2008

2009

2010

2011

2012

2013

2014

CM1 Totton Roadside Y (for NO2) 91 N/A 40 23 22 23 26 23 24 23

CM4 Holbury Industrial N 96 N/A 40 17 16 18 20 17 19 17

CM5 Marchwood Industrial N 88 Y 40 25 24 30 28 20 20 19 Note:

1. a i.e. data capture for the full calendar year (e.g. if monitoring was carried out for six months the maximum data capture for the full calendar year would be 50%).

2. All PM10 data has been adjusted to gravimetric equivalent using the volatile correction method (VCM) as described in Appendix B.

Figure 2.6 Trends in Annual Mean PM10 Concentrations

10

15

20

25

30

35

40

45

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

An

nu

al M

ean

PM

10

Co

nce

ntr

atio

n

(µgm

-3)

Year

Holbury

Totton

Marchwood

Objective


LAQM USA 2015 48

Table 2.8 Results of Automatic Monitoring for PM10: Comparison with 24-hour mean Objective

Site ID

Site Name Site Type

Within AQMA?


Confirm Gravimetric Equivalent (Y or N/A)

24 hour objective number of

exceedences

> 50 g/m3

No. of Exceedances of the 24hr Mean Objective

2008b

2009b

2010b

2011b

2012b

2013b

2014b

CM1 Totton Roadside Y (for NO2) 91 N/A 35 10 10 7 20 12 8(38) 9

CM4 Holbury Industrial N 99 N/A 35 3 1 0 8 5 0 3

CM5 Marchwood Industrial N 88 Y 35 19 7 (38) 13 23 8 1(38) 6(33) Notes:

1. a i.e. data capture for the full calendar year (e.g. if monitoring was carried out for six months the maximum data capture for the full calendar year would be 50%)

2. b if data capture for full calendar year is less than 90%, include the 90.4

th percentile of 24-hour means in brackets

3. All PM10 data has been adjusted to gravimetric equivalent using the volatile correction method (VCM) as described in Appendix B.

Figure 2.7 Trends in PM10 24hr Mean Objective

0

5

10

15

20

25

30

35

40

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

No

. of

exc

ee

dan

ces

>50

µgm

-3 o

ver

24

hrs

Me

an

Year

Totton

Holbury

Marchwood

Objective


LAQM USA 2015 49

None of the automatic monitoring sites exceeded the objectives set for PM10 during 2014.

The monitoring site at Holbury represents relevant public exposure, and whilst the sites at

Totton and Marchwood are close to residential housing they do not represent relevant public

exposure.

The automatic monitoring results show the PM10 concentrations at Totton, Holbury and

Marchwood are well below the annual and daily mean objectives during 2014, and over the

period 2005-2014. Overall there has been a slight decrease in monitored concentrations over

the period 2005 – 2014 for both PM10 objectives at all the monitoring sites, although it is

noted that there is a greater degree of variation over time in the daily concentrations at the

automatic monitoring sites compared to the annual mean concentrations.


LAQM USA 2015 50

2.2.3 Sulphur Dioxide

New Forest District Council monitored sulphur dioxide automatically at two sites during 2014;

Holbury and Fawley.

As stated in Table 1.1 there are three objectives for sulphur dioxide, a 24-hour mean, an

hourly mean and a 15-minute mean. The 24-hour objective is set at 125g/m3 not to be

exceeded more than 3 times in a year, the hourly objective is set at 350µg/m3 not to be

exceeded more than 24-times a year and the 15-minute objective is set at 266g/m3 not to

be exceeded more than 35 times in a year.

The results from the two automatic monitoring sites for 2014 against the 3 sulphur dioxide

objectives are shown in Table 2.9. Figure 2.8 shows the trends in the 15-min mean objective

for sulphur dioxide between 2005 and 2014.

There were no exceedences of the sulphur dioxide objectives at the monitoring sites during

2014.

Details of the QA/QC for the automatic monitoring are shown in Appendix B.


LAQM USA 2015 51

Table 2.9 Results of Automatic Monitoring of SO2: Comparison with Annual Mean Objectives

Site ID

Site

Name Site Type

Within AQMA?


Number of:

15-minute Means > 266µg/m3

1-hour Means > 350µg/m3

24-hour Means > 125µg/m3

CM3 Fawley Industrial N 96 0 0 0

CM4 Holbury Industrial N 99 0 0 0 Notes:

1. In bold, exceedence of the relevant AQS objective (15-min mean = 35 allowed/year; 1-hour mean = 24 allowed/year; 24-hour mean = 3 allowed/year) 2.

a i.e. data capture for the full calendar year (e.g. if monitoring was carried out for six months the maximum data capture for the full calendar year would be 50%)

Figure 2.8 Trends in SO2 15 min Mean Concentrations

0

10

20

30

40

50

60

70

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

No

. of

exc

eed

ance

s >2

66

µgm

-3 o

ver

15

min

m

ean

Year

Fawley

Holbury

Objective


LAQM USA 2015 52

None of the monitoring sites exceeded the objectives set for sulphur dioxide during 2014.

Both monitoring sites represent relevant public exposure.

The trend data clearly shows the exceedance of the 15minute mean objective for sulphur

dioxide at Fawley in 2005 which resulted in the declaration of the Air Quality Management

Area. However the graph also shows how the number of exceedances of the 15 minute

mean objective has significantly decreased since 2005, with all subsequent results being well

below the objective of 35 exceedances per year.

There are no trend graphs presented for the 1-hour and 24-hour sulphur dioxide objectives.

The monitoring results for Fawley and Holbury recorded zero for each objective since the

sites became operational in 2005, with one exception at Fawley in 2005 when 4

exceedances of the hourly objective were monitored. The hourly objective is set at 350µg/m3,

not to be exceeded more than 24 times a year therefore this objective was not exceeded in

2005.


LAQM USA 2015 53

2.2.4 Benzene

New Forest District Council has not monitored for benzene within its district during 2014.

2.2.5 Other pollutants monitored

New Forest District Council has not monitored for any other pollutants within its district during

2014.

2.2.6 Summary of Compliance with AQS Objectives

New Forest District Council has examined the results from monitoring in the district.

Concentrations outside of the AQMA’s are all below the objectives at relevant

locations, therefore there is no need to proceed to a Detailed Assessment.


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3 Road Traffic Sources

3.1 Narrow Congested Streets with Residential Properties Close to the Kerb

The criteria for assessing narrow congested streets are set out in Box 5.3 of Government

guidance (Defra, 2009). Narrow congested streets with residential properties close to the kerb

were considered in previous Updating and Screening Assessments and no new narrow

congested streets have been identified.

New Forest District Council confirms that there are no new/newly identified congested streets

with a flow above 5,000 vehicles per day and residential properties close to the kerb, that

have not been adequately considered in previous rounds of Review and Assessment.

3.2 Busy Streets Where People May Spend 1-hour or More Close to Traffic

The criteria for assessing busy streets are set out in Box 5.3 of Government guidance (Defra,

2009). Busy streets where people may spend 1 hour or more close to traffic were considered

in previous Updating and Screening Assessments and no new busy streets have been

identified.

New Forest District Council confirms that there are no new/newly identified busy streets

where people may spend 1 hour or more close to traffic.


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3.3 Roads with a High Flow of Buses and/or HGVs.

The criteria for assessing roads with a high flow of buses and / or HGV’s are set out in Box

5.3 of Government guidance (Defra, 2009). Roads with a high flow of buses and / or HGV’s

were considered in previous Updating and Screening Assessments and no new roads have

been identified. However it is noted that a proposed development of an off-shore wind farm in

the Solent, may increase the number of heavy duty vehicle’s (HDV’s) travelling through the

Lyndhurst Air Quality Management Area over a 2 year period. This proposal is currently at

the planning stage, and New Forest District Council had commented on the transport plans

and possible mitigation measures to reduce the impact on local traffic movements and air

quality.

New Forest District Council confirms that there are no new/newly identified roads with high

flows of buses/HDVs.

3.4 Junctions

The criteria for assessing junctions are set out in Box 5.3 of Government guidance (Defra,

2009). Junctions were considered in previous Updating and Screening Assessments and no

new junctions of significance have been identified.

New Forest District Council confirms that there are no new/newly identified busy

junctions/busy roads.


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3.5 New Roads Constructed or Proposed Since the Last Round of Review and Assessment

The criteria for assessing new roads are set out in Box 5.3 of Government guidance (Defra,

2009). There are no new or proposed new roads since the last review and assessment of

local air quality, however it is noted that a planning application for a large development of

commercial and residential premises in Totton may be submitted in the near future. If such

an application is submitted the impact of the proposed development on local air quality will

be considered as part of the planning process. Future review and assessment reports will

also assess the potential impact of such a development on local air quality.

New Forest District Council confirms that there are no new/proposed roads.

3.6 Roads with Significantly Changed Traffic Flows

The criteria for assessing roads with significantly changed traffic flows are set out in Box 5.3

of Government guidance (Defra, 2009). There are no roads identified with significantly changed

traffic flows since the last review and assessment of local air quality.

New Forest District Council confirms that there are no new/newly identified roads with

significantly changed traffic flows.

3.7 Bus and Coach Stations

The criteria for assessing bus and coach stations are set out in Box 5.3 of Government

guidance (Defra, 2009). Bus and coach stations were considered in previous Updating and

Screening Assessments and none meeting the criteria were identified.

New Forest District Council confirms that there are no relevant bus stations in the Local

Authority area.


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4 Other Transport Sources

4.1 Airports

The criteria for assessing airports are set out in Box 5.4 of Government guidance (Defra, 2009).

New Forest District Council confirms that there are no airports in the Local Authority area.

4.2 Railways (Diesel and Steam Trains)

4.2.1 Stationary Trains

The criteria for assessing stationary trains are set out in Box 5.4 of Government guidance

(Defra, 2009). Stationary trains were considered in previous Updating and Screening

Assessments and no locations meeting the criteria were identified.

New Forest District Council confirms that there are no locations where diesel or steam trains

are regularly stationary for periods of 15 minutes or more, with potential for relevant

exposure within 15m.

4.2.2 Moving Trains

The criteria for moving trains are set out in Box 5.4 of Government guidance (Defra, 2009).

Moving trains were considered in previous Updating and Screening Assessments.

New Forest District Council confirms that there are no locations with a large number of

movements of diesel locomotives, and potential long-term relevant exposure within 30m.


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4.3 Ports (Shipping)

The criteria for shipping ports are set out in Box 5.4 of Government guidance (Defra, 2009).

Southampton Port is within 1km of relevant exposure locations in the New Forest district,

therefore the Port has been considered in previous Updating and Screening Assessments, in

addition to modelling work undertaken as part of a potential port development in 2004

(Dibden Bay) which assessed the potential impact of sulphur dioxide from shipping on

relevant residential premises. This previous work concluded that the relevant sulphur dioxide

objectives were unlikely to be exceeded at locations within the New Forest due to emissions

from Southampton Port. It is also noted that the sulphur content in shipping fuel will be

decreased from 2015 to 0.1% whilst the ships are berthing and in port, therefore reducing the

sulphur dioxide emissions from shipping activities at Southampton Port.

New Forest District Council confirms that whilst there is relevant exposure within 1km of the

shipping berths at Southampton Port, previous work undertaken shows that it is unlikely that

relevant sulphur dioxide objectives will be exceeded. A Detailed Assessment is therefore not

required.


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5 Industrial Sources

5.1 Industrial Installations

5.1.1 New or Proposed Installations for which an Air Quality Assessment has been Carried Out

The criteria for assessing industrial installations are set out in Box 5.5 of Government

guidance (Defra, 2009). There are no new or proposed industrial installations within the New

Forest district since the last Updating and Screening Assessment.

New Forest District Council confirms that there are no new or proposed industrial

installations for which planning approval has been granted within its area or nearby in a

neighbouring authority.

5.1.2 Existing Installations where Emissions have Increased Substantially or New Relevant Exposure has been Introduced


guidance (Defra, 2009). There are no existing installation where emissions have increased

substantially or new relevant exposure has been introduced since the last Updating and

Screening Assessment.

New Forest District Council confirms that there are no industrial installations with

substantially increased emissions or new relevant exposure in their vicinity within its area or

nearby in a neighbouring authority.

5.1.3 New or Significantly Changed Installations with No Previous Air Quality Assessment


guidance (Defra, 2009). There are no new or significantly changed industrial installations with

no previous air quality assessment.

New Forest District Council confirms that there are no new or proposed industrial

installations for which planning approval has been granted within its area or nearby in a

neighbouring authority.


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5.2 Major Fuel (Petrol) Storage Depots


guidance (Defra, 2009). There is a major fuel (petrol) storage depot located in the New Forest

district at the Hythe terminal, however the location has been screened in accordance with

guidance (Defra, 2009) and with the assistance of the Air Quality Helpdesk and it has been

concluded there is no requirement to proceed to a Detailed Assessment at this time.

It is noted that any changes to the capacity of fuel stored on site may result in the location

being re-assessed to determine if there is a requirement to proceed to a Detailed

Assessment. Considering the site is currently inspected bi-annually by the Local Authority as

part of its permitting regime, it is likely any such changes to the fuel storage capacities will be

quickly identified.

New Forest District Council has assessed a major petrol storage depot, and concluded that it

will not be necessary to proceed to a Detailed Assessment.

5.3 Petrol Stations


guidance (Defra, 2009). There are no petrol stations in the New Forest district which fulfil the

specified criteria.

New Forest District Council confirms that there are no petrol stations meeting the specified

criteria.


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5.4 Poultry Farms


guidance (Defra, 2009). In the Updating and Screening Assessment 2009 the potential

combined impact from two medium sized poultry on residential premises in Sway was

identified as an area requiring further assessment through a Detailed Assessment. During

2010 – 2011 New Forest District Council contracted AEA Technology to undertake the

Detailed Assessment taking into account the two poultry farms plus a neighbouring waste

transfer station.

Following the submission of the Detailed Assessment the Council discussed the conclusions

with the Defra Air Quality Helpdesk (operated by Bureauveritas). It was concluded that there

was no requirement to declare an Air Quality Management Area in Sway due to the

combined impact of the poultry farms. This conclusion was reached by considering changes

to the criteria to assess poultry farms, the Detailed Assessment results, the assessment of

the combined impacts of two poultry farms and modelled impact. As such it was determined

that New Forest District Council would not take any further action concerning particulate

matter from the identified poultry farms in Sway (Pitmore Farm and Matford Farm) unless

Local Air Quality Management guidance changed or the number of birds processed on site

increased significantly. To date, no such changes have occurred and therefore the Council

will not be considering these poultry farms further.

New Forest District Council confirms that there are no poultry farms meeting the specified

criteria.


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6 Commercial and Domestic Sources

6.1 Biomass Combustion – Individual Installations

The criteria for assessing biomass combustion (individual installations) are set out in Box 5.8,

of Government guidance (Defra, 2009). Two commercial boilers have been identified by New

Forest District Council;

A Vyncke ‘CNS-C’ hot water (WID ready) 4.7MW biomass boiler burning Grade A and

Grade B waste wood at Double H Nurseries, Gore Road, New Milton BH25 5NG.

In order to operate, this boiler required planning permission from Hampshire County

Council and permitting by the Local Authority under the provisions laid out in the

Pollution Prevention and Control Act 1990, the Environmental Permitting (England

and Wales) Regulations 2010 (as amended). The permit was issued in February

2015.

The planning and permitting processes included the submission of a detailed air

quality assessment to determine the impact of the boiler on local air quality and

emission testing once the boiler was commissioned. The detailed assessment and

emission testing determined the operation of this biomass boiler did not have a

significant impact on local air quality.

A 1MW biomass boiler burning virgin wood at Pinetops Nurseries, Milford Road,

Lymington SO41 0JD.

This boiler is only recently installed and is intended to be authorised under the

provisions laid out under the Clean Air Act 1993. There may be the requirement for

the boiler to be permitted in the future should waste wood be considered as a fuel

source.

If New Forest District Council becomes aware of any other biomass combustion plant they

will be considered in future Review and Assessment reports.

New Forest District Council has assessed the biomass combustion plant, and concluded that

it will not be necessary to proceed to a Detailed Assessment.


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6.2 Biomass Combustion – Combined Impacts

The criteria for assessing biomass combustion (individual installations) are set out in Box 5.8,

of Government guidance (Defra, 2009). The combined impact of biomass combustion has been

assessed in previous Review and Assessment reports, and it is considered unlikely that the

criteria to proceed to a Detailed Assessment would be met in the New Forest district.

New Forest District Council has assessed the biomass combustion plant, and concluded that

it will not be necessary to proceed to a Detailed Assessment.

6.3 Domestic Solid-Fuel Burning

The criteria for assessing domestic solid-fuel burning are set out in Box 5.8, of Government

guidance (Defra, 2009). Domestic solid-fuel burning has been assessed in previous Review

and Assessment reports, and it is considered unlikely that the criteria to proceed to a

Detailed Assessment would be met in the New Forest district due to no areas of significant

domestic fuel use.

New Forest District Council confirms that there are no areas of significant domestic fuel use

in the Local Authority area.


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7 Fugitive or Uncontrolled Sources

The criteria for assessing fugitive or uncontrolled source are set out in Box 5.10, of

Government guidance (Defra, 2009). There are no new locations, current sources with a

significant change or new relevant exposure locations identified for fugitive or uncontrolled

sources within the New Forest district. If New Forest District Council becomes aware of any

sources for fugitive or uncontrolled emissions they will be considered in future Review and

Assessment reports.

New Forest District Council confirms that there are no potential sources of fugitive particulate

matter emissions in the Local Authority area.


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8 Conclusions and Proposed Actions

8.1 Conclusions from New Monitoring Data

Throughout 2014 monitoring for nitrogen dioxide, particulate matter (PM10) and sulphur dioxide has

been undertaken throughout the New Forest district. The only pollutant monitored as exceeding air

quality objectives was nitrogen dioxide with regards to the annual mean objective.

The majority of monitoring for nitrogen dioxide concentrations was undertaken using diffusion

tubes located throughout the District. The annual mean results for each diffusion tube site was

biased corrected either using a locally determined bias correction factor as detailed in Appendix B

or using the national bias correction factor (Defra, 2015).

During 2014, 5 sites monitored an exceedance of the annual mean objective for nitrogen dioxide; 1

site was the automatic analyser at Lyndhurst, whilst the other 4 sites were from diffusion tubes in

Lyndhurst. All the sites monitoring an exceedance of the annual mean objective for nitrogen

dioxide are within the current Air Quality Management Area in Lyndhurst.

The ratified result from the automatic analyser in Lyndhurst for 2014 was 41µg/m3 which although

is an exceedance of the annual mean objective for nitrogen dioxide and an increase from 40µg/m3

in 2012, is the same result as that monitored in 2013. However the automatic analyser results are

presented as whole numbers (unlike the diffusion tube results which are presented to two decimal

places), and on closer scrutiny the actual monitoring results from the automatic analyser were

40.4µg/m3 (2012), 40.6µg/m3 (2013) and 40.5µg/m3 (2014). Therefore the results from the

automatic analyser have shown consistency over the past 3 years, and unfortunately any slight

increase on the 2012 monitoring result will determine a reported exceeedance of the air quality

objective for nitrogen dioxide.

The diffusion tube sites which monitored an exceedance of the annual mean objective for nitrogen

dioxide in Lyndhurst have consistently exceeded the objective since 2006. However with particular

reference to each locations, it has been noted that for:

15 High Street (site 9) the monitored annual mean concentration was significantly reduced

by approximately 6µg/m3 compared to 2012 monitoring results, with a significant reduction

of 4µg/m3 between 2013 and 2014. This monitoring location has historically recorded the

highest monitoring result for the annual mean nitrogen dioxide concentration in the district,


LAQM USA 2015 66

however following the monitored reduction in nitrogen dioxide in 2014, this location is not

currently recording the highest monitored result.

14 High Street (site 10) monitored a similar result to previous years (2012 and 2013). This

followed a significant reduction in nitrogen dioxide annual mean concentration since 2011,

with the concentration at this location being at around the annual mean objective

concentration of 40µg/m3.

16 High Street (site 11) has monitored a further year of a consistent result of between

43µg/m3 and 44µg/m3. This location recorded the highest monitored concentration of

nitrogen dioxide in the district during 2014, however this was because of the significant

reduction in nitrogen dioxide concentration monitored at 15 High Street.

2a Romsey Road (site 12) is a site on a telegraph pole with no relevant exposure, but at a

traffic light point. This site has monitored a 2.5µg/m3 increase in nitrogen dioxide

concentration as an annual mean.

14 and 15 High Street (along with 16 High Street) are within the street canyon part of the High

Street, forming part of the one-way traffic system around Lyndhurst. Due to the air quality issues in

Lyndhurst the use of a green filter, long vehicle detection system and MOVA (Microprocessor

Optimised Vehicle Actuation) system (HCC, 2015) were introduced on the traffic lights off the one

way between the High Street (in the street canyon) into Romsey Road to improve traffic flow and

air quality. This system was introduced in 2012 and increased in use in 2013 when it was in

continual use apart from times when a long vehicle approaches the junction or when the pedestrian

crossings are in use.

It has been noted that the traffic flow around the one-way system has improved and although there

are still times of congestion these appear less frequent and less pronounced. Hampshire County

Council has also confirmed that the traffic figures around Lyndhurst have remained consistent,

therefore the reduction in the annual mean nitrogen dioxide concentrations noted at the monitoring

sites in the street canyon may be as a result of the improved traffic flow, and further monitoring

should confirm this.

Both monitoring locations at 16 High Street and 2a Romsey Road are adjacent to traffic lights and

are therefore at the point where vehicles are accelerating away from a junction. This may explain

the consistent or increased results for these sites.


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It is also noted that the monitoring locations around the one way system in Lyndhurst, in particular

sites 1 – 11 (inclusive) have monitored similar results or slightly decreased results compared to the

2013 results. This may be characteristic throughout the district, as there seems to be a slight

decrease in the monitored nitrogen dioxide annual mean concentrations over the majority of sites,

or as a direct result of the improved congestion in Lyndhurst.

There have been uncertainties to why the location at Shrubbs Hill Road (site 4a) was monitoring an

annual mean concentration for nitrogen dioxide above the objective when monitoring sites either

side did not monitor such high results and because a Detailed Assessment in 2012 concluded the

site should not be exceeding. Therefore in 2013 the site was altered to a duplicate site to ensure

precision in the monitored concentrations and an addition diffusion tube site was located adjacent

to the front door of the residential premises (as shown in Figure 8.1).

Figure 8.1 Location of diffusion tube monitoring sites 4a and 4b

4b

4a

The monitored nitrogen dioxide concentration at site 4a shows a significant decrease of 5µg/m3

between 2013 and 2014, producing a borderline result in 2014 just under the objective

concentration at 39.83µg/m3. However the location at site 4b monitored a concentration of

32.92µg/m3 which was consistent with the result for 2013. Whilst the monitored result at site 4b is

significantly below the annual mean objective for nitrogen dioxide it also implies that the reduction

in the monitored result at site 4a may be as a result of the improvements seen in traffic congestion

around the one-way system in Lyndhurst.


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The monitoring location at 2 Gosport Lane, Lyndhurst (site 16) has historically been a site which

has monitored concentrations of nitrogen dioxide which have on occasions exceeded the annual

mean objective. This site was included as part of a Detailed Assessment in 2012, however

subsequent monitoring since 2012 has not shown concentrations exceeding the objective for

nitrogen dioxide, although the annual mean results have remained borderline. This location is

adjacent to 2 merging lanes of traffic on the Lyndhurst one way system (after sharp 90 degree

corners), however the overall improved traffic flow around Lyndhurst may also be having a positive

impact on the nitrogen dioxide concentrations monitored at this site.

Previous monitoring results at Shrubbs Hill Road (site 4a) and Gosport Lane (site 16) have

resulted in the consideration of either declaring an additional Air Quality Management Area(s) in

Lyndhurst or extending the existing Air Quality Management Area. Based on the monitoring results

in 2014, it is recommended that monitoring at these locations should continue to determine

whether concentrations of nitrogen dioxide remain below the annual mean objective level therefore

removing the requirement to declare additional or extend the existing Air Quality Management Area

in Lyndhurst.

A noted dramatic decrease in nitrogen dioxide annual mean concentrations in 2014 was at 15

Gosport Lane, Lyndhurst (site 17). This result has been annualised and adjusted for distance to a

relevant exposure (to enable comparison to the 2013 monitoring result which was a borderline

result in 2013). The 2014 monitored result shows a reduction of 10µg/m3, however in 2013 this

location was adjacent to a development site, which may have resulted in increased nitrogen

dioxide concentrations due to the influence of on-site construction traffic.

Nitrogen dioxide monitoring using the automatic analyser and diffusion tubes will

continue in Lyndhurst during 2015.

The nitrogen dioxide monitoring undertaken in Totton during 2014 did not show any exceedances

of the annual mean objective, or results considered borderline. In fact the highest recorded

monitoring concentration was 32.98µg/m3 at a kerbside location in Junction Road which is not

relevant exposure.

It is noted that following advice from the Air Quality helpdesk the local bias correction factor of 0.72

was applied to the Totton diffusion tubes. This bias correction factor is considered relatively low,

resulting in the corrected monitored results being reduced quite dramatically from the raw data.


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It is noted that if the national bias correction factor of 0.91 was applied to the raw data in Totton,

one site would exceed the annual mean objective for nitrogen dioxide. However this exceeding site

is a kerbside location and not of relevant exposure. All the other monitored concentrations would

have been below the annual mean objective concentration even with the application of the national

bias correction factor.

The application of a low bias correction factor in Totton is not unusual with other previous local bias

correction factors applied being 0.81 (2011), 0.89 (2012), 0.84 (2013) and 0.72 (2014). This site,

when compared to Lyndhurst appears to have a greater degree of variation in the local bias

correction factors, whereas Lyndhurst show greater consistency in the factors determined. The

local bias correction factors for Lyndhurst were; 0.90 (2011), 0.88 (2012), 0.88 (2013) and 0.87

(2014).

However due to the application of the 0.72 bias correction factor, all the diffusion tube results in

Totton have shown a decrease when compared to the 2013 results. This is due to the bias

correction factor rather than the actual monitored concentrations, but overall the results are

acceptable.

Therefore whilst it is evident that the decision of which bias correction factor to use will greatly

influence the presented results, the application of a locally derived bias correction factor is

preferred to reflect local conditions if it is considered robust. In the case of Totton I discussed my

queries and findings with the Air Quality helpdesk and it was concluded the application of the local

bias correction factor (0.72) to the 2014 monitored diffusion tube data was acceptable.

Monitoring in Totton has not shown an exceedance of the annual mean objective for nitrogen

dioxide either inside or outside the Air Quality Management Area at any site since 2008. Whilst it is

noted that the Council should be revoking the Air Quality Management Area in Totton based on the

monitoring results, previous Air Quality Review and Assessment reports have deferred the decision

to start the revocation the Air Quality Management Area due to the likelihood of a major

development for houses and commercial premises on a brown field site at Eling Wharf, just outside

the current Air Quality Management Area.

However due to the continued monitoring evidence that there have been no exceedances of the

annual mean objective for nitrogen dioxide at any monitoring location in Totton during the last 6

years, it is the recommendation of this report that the revocation of the Totton Air Quality

Management Area should proceed. This report would also recommend that nitrogen dioxide


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monitoring continues in Totton for a number of years post revocation of the Air Quality

Management Area, and whilst the planning department has advised that a planning application will

be received for the re-development of Eling Wharf the impact on local air quality would be

thoroughly considered during the planning process and any determined significant impact on local

air quality is suitably and robustly mitigated.

Nitrogen dioxide monitoring using the automatic analyser and diffusion tubes will

continue in Totton during 2015.

The trend data shown for nitrogen dioxide monitoring using diffusion tubes at sites within the

Lyndhurst Air Quality Management Area has shown a general slight decrease in nitrogen dioxide

concentrations over time (2005 – 2014). This has been particularly noted in the sites located within

the street canyon part of the High Street, 14, 15 and 16 High Street where the nitrogen dioxide

annual mean concentrations continue to exceed the air quality objective. It is hoped this

decreasing trend will continue.

It is also noted that throughout all the diffusion tube sites, the majority of sites have monitored

slight decreases in nitrogen dioxide concentrations between 2013 and 2014 with 36 sites (out of

44) monitoring a decrease which was noted at both rural background sites (sites 35 and 44). The

changes across the district are difficult to explain - it may be the influence of weather conditions or

subtle changes in fleet configurations. Whilst it is worth keeping a note of such patterns, overall it is

monitored exceedances of the air quality objectives which would result in action being taken to

reduce pollution concentrations.

There are no further nitrogen dioxide monitoring locations which have caused concern during

2014. As such a number of diffusion tube sites have been removed following a number of years of

low monitoring results and / or irrelevant exposure locations. These sites are:

23 Junction Road, Totton not relevant exposure,

- relevant exposure site (25 Junction Road) in close proximity

83 Ringwood Road, Totton low monitoring results

3 Magazine Lane, Marchwood low monitoring results

Autumn Road, Marchwood low monitoring results

11 Bilberry Drive, Marchwood low monitoring results


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It is noted that there have been no monitored exceedance of the short term nitrogen dioxide hourly

objective at any automatic monitoring location, or any diffusion tube monitoring an annual mean

concentration >60µg/m3 which may be indicative of a possible exceedance of the hourly objective

for nitrogen dioxide.

The Council will continue to review its monitoring sites throughout the District and locate or remove

sites as required. In the meantime monitoring of nitrogen dioxide using diffusion tubes

will continue throughout the District during 2015.

It is noted that there are no monitored exceedances of the particulate matter (PM10) objectives at

any of the monitoring sites during 2014. The sites monitoring PM10 at Holbury and Totton are still

relevant and will continue to monitor for particulate matter. It is noted that the Council uses TEOM

monitors which do not meet the equivalence criteria, however the annual results are corrected

using the Defra accepted volatile correction method (VCM) as detailed in Appendix B. Should the

Council determine the PM10 concentrations are likely to exceed the objectives or that the

particulate monitoring equipment requires replacement, then equipment that meets the

equivalence criteria will be installed to replace the existing TEOM’s.

Monitoring of PM10 at Totton and Holbury will continue in 2015.

Monitoring results for sulphur dioxide from Fawley and Holbury have not shown an exceedance of

the any of the sulphur dioxide objectives. Indeed there have been no monitored exceedances of

the sulphur dioxide objective since the monitored exceedance of the 15 minute mean objective at

Fawley in 2005. As a result the Air Quality Management Area for Fawley for the likely exceedance

of the 15 minute mean objective was revoked in April 2013, however monitoring will continue into

the near future to ensure the concentrations of monitored sulphur dioxide remain below the

objective levels.

Monitoring of sulphur dioxide at Fawley and Holbury will continue in 2015 in order

to obtain local monitoring data for the area.


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8.2 Conclusions from Assessment of Sources

The assessment of sources within the New Forest district has concluded that to the best of

our knowledge there will be no impacts on air quality from local developments: road

transport, other transport, industrial installations, commercial or domestic sources and

fugitive emissions.

However it is noted that there is the potential for increases in benzene emissions from the

fuel terminal at Hythe. Therefore checks on the status on this site will be made as part of the

bi-annual permitting inspection by the Local Authority.

It is also likely that there will be an increase in the number of biomass boilers installed at

commercial premises within the District. Therefore the Local Authority needs to ensure such

installations are properly assessed for the likely impact on local air quality and regulated

under the most appropriate legislation.

8.3 Proposed Actions

The Updating and Screening Assessment 2015 has not identified the requirement for

additional monitoring. Due to a number of years of low monitoring results and / or non-

relevant exposure locations a number of diffusion tubes will be removed during the

monitoring programme for 2015. However the monitoring programme within New Forest

district will continue during 2015.

The Updating and Screening Assessment 2015 has recommended the requirement to

proceed to revoking the Air Quality Management Area for Totton following 6 years of no

monitored exceedance of the annual mean objective for nitrogen dioxide in Totton. The

revocation of an Air Quality Management Area includes producing evidence such as

monitoring and / or modelling data to support the revocation, a consultation process and the

Local Authority cabinet approval.

Appendix G of this report summarises the actions taken to declare the Totton Air Quality

Management Area, measures implemented and all monitoring results. It is hoped that

Appendix G provides the evidence required to enable New Forest District Council to proceed


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through the process to revoke the Totton Air Quality Management Area without the

requirement to produce a Detailed Assessment.

Therefore in conclusion, further work to be completed or progressed by New Forest District

Council is as follows:

Continue the current air quality monitoring programme in New Forest district

Submit the Action Plan Progress Reports by December 2015 for: - Lyndhurst Air Quality Management Area

- Totton Air Quality Management Area

Produce a district wide Progress Report by April 2016

Continue with the recommendation to revoke the Totton Air Quality Management Area

- Subject to agreement on the recommendation to revoke

- If revocation is agreed, with the aim to formally revoke the Totton Air Quality Management Area by June 2016 following a consultation process and cabinet approval


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9 References

Defra (2009). Part IV of the Environment Act 1995. Local Air Quality Management. Technical Guidance LAQM.TG(09). February 2009. Defra. Defra (2015). Diffusion Tubes. [Online]. Available from: http://laqm.defra.gov.uk/diffusion-tubes/diffusion-tubes.html [Accessed 3 June 2015].

Erg (2015). Air Quality in the New Forest. [Online]. Available from: http://www.hantsair.org.uk/hampshire/asp/home.asp?la=NFDC [Accessed 20 May 2015]. Environment Agency (2014). Public Registers [Online]. Available from: http://epr.environment-agency.gov.uk/ePRInternet/searchregisters.aspx [Accessed 3 June 2015]. Hampshire County Council (2015). Traffic Signal Control (MOVA system) [Online]. Available from: http://www3.hants.gov.uk/search?cx=009988739743092233991%3A4hx6rzq-jqg&cof=FORID%3A11&q=MOVA&sa=Search [Accessed 19 June 2013].

Office for National Statistics (2013).Neighbourhood Statistics. [Online]. Available from: http://www.neighbourhood.statistics.gov.uk/dissemination/ [Accessed 22 May 2013].

http://laqm.defra.gov.uk/diffusion-tubes/diffusion-tubes.html

http://www.hantsair.org.uk/hampshire/asp/home.asp?la=NFDC

http://epr.environment-agency.gov.uk/ePRInternet/searchregisters.aspx

http://www3.hants.gov.uk/search?cx=009988739743092233991%3A4hx6rzq-jqg&cof=FORID%3A11&q=MOVA&sa=Search

http://www3.hants.gov.uk/search?cx=009988739743092233991%3A4hx6rzq-jqg&cof=FORID%3A11&q=MOVA&sa=Search

http://www.neighbourhood.statistics.gov.uk/dissemination/


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Appendices

Appendix A: Part A permitted processes within New Forest district

Appendix B: QA/QC

Local bias correction factor spreadsheets

Appendix C: Full data set – nitrogen dioxide automatic monitoring hourly means

Appendix D: Annualised calculations for short term data sets


Appendix F: Full data set – diffusion tube monitoring results



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Appendix A: Part A Permitted Processes within New Forest district (2014) (EA, 2014)

Operator/Site Name Current

Environmental Permit Number

Esso Petroleum Co. Ltd JP3631KW

Esso Petroleum Company Ltd BR6996IC

ExxonMobil Chemical Limited ZP3839MG

Tradebe FP3435KW FP3935KL

Nalco Manufacturing Ltd PP3432HA

Versalis UK Ltd BR8263IE

Veolia ES (UK) Ltd NP3833UE

Veolia ES Hampshire Ltd BJ7093IY

Marchwood Power Ltd BL6217IM

RWE npower plc WP3535ZZ

Npower Cogen (Hythe) Ltd BK1732IQ

GEO Speciality Chemicals UK Ltd SP3038FQ


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Appendix B: QA/QC QA/QC of automatic monitoring All of the automatic monitoring sites undertake a daily internal calibration using either on site gases or permeation tubes and scrubbers. The sites are also manually calibrated using a reference span gas once a fortnight. The gas is obtained from Air Liquide and BOC, and each cylinder is certified. In addition, the sites are serviced and calibrated every 6 months by engineers from EnviroTech who hold the service contract for the Council. The engineer is also available for call outs if the site appears to be malfunctioning. Erg, at Kings College, London, validates and ratifies the data from the sites, which is downloaded twice a day. During the validation process any potential problems are identified and if necessary reported back to the Council and EnviroTech. The data is ratified every 1-3 months during which the manual calibrations and servicing are taken into account. Full ratification of the data occurs annually when all servicing and auditing reports, calibrations and breakdown information can be applied to the data. The Council contracts AEA to externally audit the automatic monitoring sites biannually. This process ensures quality assurance and control of the sites. The data given in the Updating and Screening Assessment 2015 has been fully ratified. QA/QC of diffusion tube monitoring The determination of nitrogen dioxide diffusion tube precision is obtained from duplicate and triplicate co-located sites. The results from triplicate diffusion tube sites operated by New Forest District Council at Totton, Lyndhurst and Marchwood can be seen in the spreadsheet calculation used to determine local bias correction and shown in Appendix F. Overall the triplicate diffusion tube sites showed good precision during 2014. Gradko International Ltd. is a UKAS accredited laboratory and has been rated ‘good’ through the Workplace Analysis Scheme for Proficiency (WASP) as determined by the health and safety laboratory. Gradko International Ltd. also follows procedures set out in the Technical Guidance LAQM.TG(09) (Defra, 2009). Diffusion Tube Bias Adjustment Factors The nitrogen dioxide diffusion tubes were supplied and analysed by Gradko International Ltd. The preparation method used for the diffusion tubes was 20% TEA (triethanolamine) in water.


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The national bias adjustment factor for Gradko using the preparation method of 20% TEA in water (2014) was 0.91. This was obtained from the Local Air Quality Management website (Defra, 2015) from database version 06/15. Factor from Local Co-location Studies Two different local bias correction factors were determined for the data for 2014. These were as follows; Details of Bias Correction Factors

Location Bias Correction Factor

Totton 0.72

Lyndhurst (street canyon) 0.87

The local bias correction factors have been determined using calculations supplied by the Local Air Quality Management website (Defra, 2015) and are shown below for Totton and Lyndhurst.


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Totton – Local Bias Correction Factor Spreadsheet


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Lyndhurst – Local Bias Correction Factor Spreadsheet


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Discussion of Choice of Factor to Use The diffusion tube results have been bias corrected to allow for laboratory bias. Bias correction factors can either be determined from local or national data sets, and factors influencing the decision on which bias correction factors to use include local conditions and the location of automatic nitrogen oxides analysers. 3 different bias correction factors have been applied to the 2014 diffusion tube data for New Forest. Local bias correction factors were determined and used for diffusion tube sites located in Totton. This location contains an automatic monitoring site with a co-located triplicate diffusion tube site, therefore enabling a local correction factor to be applied. It was noted that Government guidance (TG, 09) advises that data capture for an automatic analyser should be greater than 90% in order to use the data, including for the determination of local bias correction factors. It was noted that the automatic analyser at Totton had a data capture slightly below the recommended level of 90 % (at 86 %). However, low data capture was primarily in 2 months: i) May 2014 - when the diffusion tubes were also missing; and ii) June 2014 - when the diffusion tubes had a poor precision and are not used in the calculation of the bias correction factor. The automatic analyser’s data capture and the availability and precision of diffusion tubes were all good for the remaining 10 months of 2014. In fact, the result from the bias correction spreadsheet is the same (0.72) when the results from the analyser are altered to give a 90% data capture:


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As such, the use of the continuous monitor to calculate a local bias correction factor is justified and supported by the Local Air Quality helpdesk. In Lyndhurst 5 diffusion tube sites have been locally biased corrected. These 5 diffusion tube sites and the automatic monitoring site are located within the street canyon of the High Street. The remaining 14 diffusion tube sites in Lyndhurst have been bias corrected using the national bias correction factor, as these sites are located outside the effects of the street canyon in the High Street, Lyndhurst. Previous Local Air Quality Reports for the New Forest have presented a local bias correction factor for Marchwood. Whilst a triplicate diffusion site was co-located with the automatic analyser site during 2014, the data capture for the automatic site was poor at 70%, therefore there was no justification to obtain a local bias correction factor for the Marchwood area. The bias correction factors used on the 2014 diffusion tube data are shown below;

Details of Bias Correction Factors

Location Bias Correction Factor

Local / National

Totton 0.72 Local

Lyndhurst (street canyon) 0.87 Local

Lyndhurst 0.91 National

Remaining sites 0.91 National

It is noted that bias correction factors less than 1 will reduce the raw annual mean result for each diffusion tube, whilst factors greater than 1 will increase the raw annual mean result. The degree of adjustment will depend on the bias correction factor with larger adjustments noted the further the correction factor is from 1. Therefore the choice of bias correction factor is important. In conclusion, I am confident in the determination and selection of the bias correction factors used to adjust raw diffusion tube data. The correct methods have been followed using the data available, although it is clear how influential the correction factors can be to the overall conclusion made. PM Monitoring Adjustment New Forest District Council uses TEOM analysers to monitor PM10. It is noted that this monitoring equipment does not meet the equivalence criteria, however guidance states that it is not necessary to immediately replace the monitoring equipment particularly considering the monitored PM10 concentrations are below the objectives. When the equipment is due for replacement the Council will consider other equipment which meets the equivalence criteria. PM10 data has been adjusted using the Volatile Correction Model (VCM) to correct for the use of a TEOM particulate monitor.


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Appendix C: Full data set of nitrogen dioxide automatic monitoring 2014 (hourly mean)

Totton

Note: Results shown in µgm-3

. Hourly exceedance objective = 200µgm-3

over 18 times per year.

Lyndhurst Note: Results shown in µgm

-3. Hourly exceedance objective = 200µgm

-3 over 18 times per year.


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Marchwood

Note: Results shown in µgm-3

. Hourly exceedance objective = 200µgm-3

over 18 times per year.


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Appendix D: Annualised calculations for short term data

Short-term to Long-term Data adjustment

During 2014 3 diffusion tube sites and 1 automatic monitoring site (Marchwood) reported data over the calendar year of less than 75%. Therefore in accordance with Technical Guidance (TG(09) Box 3.2, the data collated from these sites was annualised, as detailed below. It should be noted that each site was determined individually and was dependent on which periods during the calendar year had produced actual data and which periods had no data. Typically data was not available due to diffusion tubes being taken from sites or highly unusual results (often very low) which were determined as abnormal and therefore removed from the data set for the site. The long term sites utilised in the calculations were Portsmouth AURN and Southampton AURN. For the monitoring period, the annual mean (Am) results for these sites were reported as: A Portsmouth (Am) 2014 = 20.1 B Southampton (Am) 2014 = 31.6 Shrubbs Hill Road (site 3)

Long term site Annual mean (Am) Period mean (Pm) Ratio (Am/Pm)

A 20.1 18.5 1.09

B 31.6 28.8 1.10

Average Ratio 1.095

Data from site over monitoring period = 32.78µgm-3

Annualised result = (32.78µgm-3 x 1.095) x 0.91 (bias correction factor)

= 32.66µgm-3


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Shrubbs Hill Road (site 5)

Long term

site

Annual

mean

(Am)

Period

mean

Period

mean

Period

mean

Period

mean

Period

mean

average

(Pm)

Ratio

(Am/Pm)

A 20.1 - 25.1 14.9 24.5 21.50 0.93

B 31.6 36.0 37.0 27.0 37.1 34.27 0.92

Average Ratio 0.925



= 29.06µgm-3

Gosport Lane (site 17)

Long term

site

Annual

mean

(Am)

Period

mean

Period

mean

Period mean

Average (Pm)

Ratio

(Am/Pm)

A 20.1 - 19.8 19.8 1.01

B 31.6 36.0 31.1 33.55 0.94

Average Ratio 0.975



= 29.97µgm-3

Marchwood automatic analyser Long

term

site

Annual

mean

(Am)

Period

mean

Period

mean

Period

mean

Period

mean

Period

mean

Period

mean

Period

mean

Period

mean

Average

(Pm)

Ratio

(Am/Pm)

A 20.1 - 22.4 13.5 19.4 28.9 34.2 17.8 22.7 0.88

B 31.6 33.7 33.7 24.7 33.8 36.9 44.8 32.6 34.31 0.92 Average Ratio 0.90

Data from site over monitoring period = 18µgm-3 Annualised result = 18µgm-3 x 0.9

= 16µgm-3


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In accordance with guidance (Defra, 2015) adjustments are made to bias corrected diffusion tube results when monitoring is undertaken at an exceeding site which is not determined to be relevant public exposure. With regards to the monitoring undertaken within the New Forest district only one site monitored an exceedance of the nitrogen dioxide annual mean at a location determined not to be relevant public exposure: South View, Gosport Lane, Lyndhurst. South View monitored an annual mean for nitrogen dioxide of 29.97µgm-3 after a correction for annualisation (as shown in Appendix D) due to a data capture of less than 75 for the year. The result then requires adjusting for distance using the adjustment calculator http://laqm.defra.gov.uk/tools-monitoring-data/no2-falloff.html which decreases the concentration to 26.20µgm-3 at the point of relevant exposure, as shown below:

//laqm.defra.gov.uk/tools-monitoring-data/


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Appendix E: Full data set of diffusion tube monitoring results

Lyndhurst

Exposure dates Site

Goose Green, Lyndhurst Rd

Foxlease Ter, Shrubbs Hill

Rd Opp Foxlease Terr

The Orchards, Shrubbs Hill

Rd (a)


Rd (a)


Rd (a) average


(b)

06.01.2014 04.02.2014 29.38 31.67 46.13 38.55 42.34 36.74

04.02.2014 07.03.2014 30.86 27.54 33.22 33.67 33.44 36.81

07.03.2014 03.04.2014 33.38 38.33 31.30 40.95 47.15 44.05 34.86

03.04.2014 30.04.2014 38.48 43.11 44.74 50.36 53.41 51.88 38.37

30.04.2014 30.05.2014 34.22 41.02 28.32 45.91 50.54 48.22 41.72

30.05.2014 03.07.2014 27.86 33.96 23.11 47.42 38.30 42.86 35.50

03.07.2014 31.07.2014 36.54 33.53 42.96 38.49 40.72 33.04

31.07.2014 29.08.2014 31.03 30.85 30.90 42.15 46.23 44.19 33.57

29.08.2014 30.09.2014 35.96 43.94 37.58 44.62 45.06 44.84 35.97

30.09.2014 28.10.2014 32.06 32.75 38.49 36.63 37.56 35.19

28.10.2014 05.12.2014 52.18 59.76 55.97

05.12.2014 07.01.2015 24.98 39.24 39.24 138.55* Uncorrected average 31.82 35.97 32.78 43.77 36.18 21.85

Note: *Unusual result not included in calculation


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Exposure dates Site

Hillmead Lodge,

Shrubbs Hill Rd

Little Queens

Queens House

Lyndhurst School 15 High Street

16 High Street

06.01.2014 04.02.2014 22.08 19.13 20.91 27.74 43.15 49.96

04.02.2014 07.03.2014 33.22 20.72 30.67 45.84 47.93

07.03.2014 03.04.2014 31.38 24.95 25.41 28.37 38.20 44.23

03.04.2014 30.04.2014 1.79* 32.90 55.96

30.04.2014 30.05.2014 3.43* 18.86 22.23 27.96 55.32 51.87

30.05.2014 03.07.2014 32.62 21.65 20.69 25.01 44.09 43.23

03.07.2014 31.07.2014 35.86 18.35 22.81 22.81 51.85

31.07.2014 29.08.2014 38.42 19.91 20.83 30.64 46.70 50.18

29.08.2014 30.09.2014 40.59 27.61 28.52 32.16 64.32 53.17

30.09.2014 28.10.2014 37.85 19.07 18.34 27.93 46.20 46.59

28.10.2014 05.12.2014 29.54 29.30 35.48 59.22 63.43

05.12.2014 07.01.2015 37.48 19.57 21.51 30.41 44.99 46.27 Uncorrected average 34.53 22.90 22.84 29.34 49.08 50.26

Note; *Unusual result - not included in calculations


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Exposure dates Site

14 High Street (Analyser) (Analyser) (Analyser)

Analyser average

2a, Romsey

Rd

22 Romsey

Rd 28 High

St. 28 High

St.

28 High St. average

06.01.2014 04.02.2014 46.16 44.13 45.45 45.25 49.13 32.37 20.69 36.26 28.47

04.02.2014 07.03.2014 39.72 40.18 39.57 39.82 76.49* 31.41 40.60 34.34 37.47

07.03.2014 03.04.2014 37.73 39.53 41.04 39.43 44.34 28.54 33.67 33.82 33.74

03.04.2014 30.04.2014 52.89 40.64 33.23 36.82 35.02

30.04.2014 30.05.2014 54.24 49.55 49.65 51.15 51.94 32.35 33.51 32.93

30.05.2014 03.07.2014 47.18 43.63 44.08 44.96 40.19 30.09 24.25 26.44 25.34

03.07.2014 31.07.2014 47.90 48.96 52.50 49.79 36.96 30.56 26.14 27.20 26.67

31.07.2014 29.08.2014 46.45 47.93 45.15 46.51 45.16 25.39 28.25 29.75 29.00

29.08.2014 30.09.2014 51.03 53.69 44.66 49.79 43.99 38.17 33.45 33.67 33.56

30.09.2014 28.10.2014 45.37 48.18 47.39 46.98 52.31 28.17

28.10.2014 05.12.2014 58.13 56.71 55.19 56.68 40.51 38.05 38.23 38.14

05.12.2014 07.01.2015 35.46 39.13 36.47 37.02 26.85 31.49 33.62 32.55 Uncorrected average 46.12 46.32 32.06 32.08

Note; *Unusual result - not included in calculations


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Exposure dates Site

65, High St

2 Gosport

Lane

South View

Gosport Lane

Park Hotel

A35 Baytree Cottage

06.01.2014 04.02.2014 32.53 38.03 21.63 29.54 27.86

04.02.2014 07.03.2014 34.28 40.14 30.94

07.03.2014 03.04.2014 41.34 41.62 25.81 29.94

03.04.2014 30.04.2014 43.70 44.51 30.61 39.56

30.04.2014 30.05.2014 40.39 44.08 28.23 35.36

30.05.2014 03.07.2014 34.09 35.65 30.33 20.84 26.75

03.07.2014 31.07.2014 37.21 38.53 37.59 27.27 32.94

31.07.2014 29.08.2014 35.01 45.83 30.59 26.21 29.67

29.08.2014 30.09.2014 48.03 45.59 28.90 35.39

30.09.2014 28.10.2014 36.30 40.78 30.53 28.49 28.42

28.10.2014 05.12.2014 42.48 50.81 38.57 32.87 34.63

05.12.2014 07.01.2015 38.97 35.15 35.42 30.09 Uncorrected average 38.69 41.37 33.78 28.32 32.05


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Totton

Exposure dates

Site

Junction Rd (Analyser) (Analyser) (Analyser)

Analyser average 30, Junction Rd

23, Junction Rd

08.01.2014 06.02.2014 36.65 48.92 34.44 40.00 36.36 44.91

06.02.2014 06.03.2014 37.95 38.25 39.08 38.43 39.59 54.76

06.03.2014 03.04.2014 38.36 36.16 35.87 36.80 38.00 42.98

03.04.2014 28.04.2014 38.17 37.87 38.90 38.31 41.44 49.23

28.04.2014 28.05.2014 40.46

28.05.2014 01.07.2014 21.86 29.86 32.47 28.06 33.39 38.44

01.07.2014 30.07.2014 28.56 26.34 28.47 27.79 31.10 37.58

30.07.2014 27.08.2014 28.99 27.04 28.24 28.09 27.69 37.91

27.08.2014 01.10.2014 37.02 39.77 32.76 36.52 46.15 46.91

01.10.2014 28.10.2014 37.64 42.09 34.83 38.19 37.16 51.30

28.10.2014 03.12.2014 38.93 44.52 40.89 41.45 45.97 50.38

03.12.2014 06.01.2015 36.20 39.79 36.89 37.63 39.49 49.50

Uncorrected average 35.57 38.07 45.81


LAQM USA 2015 93

Exposure dates

Site

25, Junction Road

26, Rumbridge St. 2, Eling Lane

Elingfield Court, High St. 55, High St.

Commercial Rd

114, Commercial

Rd

08.01.2014 06.02.2014 30.20 40.03 41.88 41.09 33.74 37.21

06.02.2014 06.03.2014 33.79 43.85 41.13 43.19 33.13 37.48

06.03.2014 03.04.2014 35.39 40.63 44.80 39.36 38.43 40.51 36.08

03.04.2014 28.04.2014 33.74 42.79 40.22 39.29 35.33 41.12 37.77

28.04.2014 28.05.2014 33.72 36.91 36.94 33.59 33.96 35.42

28.05.2014 01.07.2014 27.06 30.96 28.85 22.75 26.98 27.19

01.07.2014 30.07.2014 24.66 32.00 35.31 26.84 26.56 30.50 19.56

30.07.2014 27.08.2014 27.04 30.34 31.34 24.50 21.75 25.58 22.72

27.08.2014 01.10.2014 38.11 40.94 41.53 39.51 36.59 40.37 32.81

01.10.2014 28.10.2014 35.23 41.26 37.93 30.62 34.70 28.12

28.10.2014 03.12.2014 33.60 47.00 39.93 40.98 37.70

03.12.2014 06.01.2015 35.93 43.01 39.38 76.83 40.64 31.98 Uncorrected average 32.37 39.14 38.30 34.80 32.01 36.77 30.44


LAQM USA 2015 94

Exposure dates

Sites

83, Ringwood Rd

Ringwood Rd /

Maynard Rd Asda

roundab’t 1, Rose Rd

08.01.2014 06.02.2014 31.19 24.83

06.02.2014 06.03.2014 39.59 43.57 40.77 28.01

06.03.2014 03.04.2014 35.55 40.02 43.22 34.88

03.04.2014 28.04.2014 34.29 39.66 43.16 31.18

28.04.2014 28.05.2014 38.04 37.63 29.85

28.05.2014 01.07.2014 29.67 32.41 27.98 25.19

01.07.2014 30.07.2014 29.14 33.33 28.54 24.43

30.07.2014 27.08.2014 28.75 32.35 29.33 18.69

27.08.2014 01.10.2014 40.4 41.58 41.18 35.1

01.10.2014 28.10.2014 35.47 37.33 36.91 23.73

28.10.2014 03.12.2014 35.22 44.54 35.45 32.97

03.12.2014 06.01.2015 40.86 44.84 39.99 31.88 Uncorrected average 34.56 38.88 36.77 28.39


LAQM USA 2015 95

Other Sites

Exposure dates

Site

Bilberry Drive Shorefield Road Magazine Lane

(Analyser) (Analyser) (Analyser) Analyser average

10.01.2014 04.02.2014 17.64 19.45 17.81 19.98 18.98 18.92

04.02.2014 06.03.2014 13.84 17.94 18.16 17.39 15.52 17.02

06.03.2014 31.03.2014 24.03 28.82 25.15 25.27 25.85 25.42

31.03.2014 28.04.2014 20.08 26.89 22.26 22.12 24.56 22.98

28.04.2014 29.05.2014 15.51 20.91 22.03 22.00 21.60 21.88

29.05.2014 30.06.2014 15.50 19.34 17.01 16.42 16.09 16.51

30.06.2014 01.08.2014 13.02 22.86 17.30 16.27 14.21 15.93

01.08.2014 27.08.2014 9.45 16.85 13.67 14.03 13.75 13.82

27.08.2014 30.09.2014 21.29 26.73 22.13 20.93 23.06 22.04

30.09.2014 29.10.2014 12.19 16.61 14.23 14.96 12.85 14.01

29.10.2014 02.12.2014 23.09 27.57 25.85 28.47 25.94 26.75

02.12.2014 05.01.2015 19.12 22.91 20.40 19.97 19.55 19.97 Uncorrected average 17.06 22.24 19.60 19.6


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Exposure dates

Sites

Broadwalk

Way Autumn

Road Marchwood

School Holbury School

Holbury School

Holbury School average

Jubilee Hall, Fawley Beaulieu

10.01.2014 04.02.2014 13.54 18.51 23.23 10.82 10.9 10.86 14.24 10.62

04.02.2014 06.03.2014 20 17.64 21.31 9.33 9.9 9.61 12.25 9.62

06.03.2014 31.03.2014 29.01 25.8 25.8 19.33 18.3 18.81 22.69 16.25

31.03.2014 28.04.2014 26.13 20.21 22.29 14.48 14.15 14.31 17.88 11.7

28.04.2014 29.05.2014 23.94 20.57 21 12.86 13.36 13.11 17.07 7.86

29.05.2014 30.06.2014 17.39 13.35 18.81 10.55 10.3 10.42 12.5 2.95

30.06.2014 01.08.2014 19.05 15.53 15.04 10.11 9.68 9.89 13.12 8.52

01.08.2014 27.08.2014 13.35 10.21 17.7 5.74 5.23 5.48 10.95 6.91

27.08.2014 30.09.2014 24.92 23.01 23.87 14.86 14.86 14.86 19.19 14.63

30.09.2014 29.10.2014 16.12 14.31 18.24 8.17 7.81 7.99 13.24 8.08

29.10.2014 02.12.2014 28.91 27.52 23.72 21.35 21.37 21.36 21.14 18.17

02.12.2014 05.01.2015 22.05 22.19 21.38 12.67 12.46 12.56 15.64 Uncorrected average 21.20 19.07 21.03 12.44 15.83 11.23


LAQM USA 2015 97

Exposure dates

Sites

Stoney Cross Stoney Cross Stoney cross

average

Rockbourne

08.01.2014 07.02.2014 36.96 29.82 33.39 9.05

7.02.2014 05.03.2014 34.41 36.45 35.43 7.57

05.03.2014 03.04.2014 35.36 37.28 36.32 10.81

03.04.2014 28.04.2014 35.74 35.86 35.80 7.76

28.04.2014 28.05.2014 37.9 40.51 39.20 8.16

28.05.2014 01.07.2014 30.67 34.12 32.39 6.71

01.07.2014 30.07.2014 39.19 37.77 38.48 6.48

30.07.2014 27.08.2014 39.64 39.56 39.60 3.57

27.08.2014 30.09.2014 40.2 38.79 39.49 10.85

30.09.2014 31.10.2014 41.42 32.17 36.79 8.76

31.10.2014 04.12.2014 37.37 37.36 37.36 16.41

04.12.2014 08.01.2015 39.53 40.73 40.13 9.56 Uncorrected average 34.53 8.81


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As noted in Section 8, the Updating and Screening Assessment 2015 is recommending the revocation of the current Totton Air quality Management Area. This decision is based on continuing monitoring data within and outside of the Air Quality Management Area in Totton which has not shown an exceedance of the nitrogen dioxide annual mean objective over the previous 6 years. The purpose of Appendix G is to detail all monitoring results for Totton and summarise the actions taken with regards to the Air Quality Management Area. It is hoped that Appendix G will remove the requirement for New Forest District Council to produce a Detailed Assessment as further evidence for the requirement to revoke the Air Quality Management Area for Totton as recommended by the Air Quality Helpdesk. Totton Air Quality Management Area A table summarising the progression to declaring the Totton Air Quality Management Area, and action taken in Totton post declaration of the Air Quality Management Area is shown below:

Year Comment Associated Report

2002 No predicted exceedences of the objectives for any pollutant. However diffusion tube monitoring undertaken in Junction Road in response to a planning application for a port development (Dibden Bay) which would extend the duration that a railway barrier would be closed in Junction Road therefore increasing the duration of queuing traffic. The reasoning behind the monitoring was to obtain baseline figures for nitrogen dioxide.

Review and Assessment

2003 Monitoring determined an exceedance of the annual mean objective for nitrogen dioxide in Junction Road, Totton which was predicted to continue to exceed objective concentrations in 2005. This determination was based on current traffic conditions (not those predicted if the Didben Bay development progressed).

Updating and Screening Assessment

2004 Confirmation of the likely exceedance of the annual mean objective for NO2 in Totton. Real time NO2 (and PM10) analyser installed (November 2004) in Junction Road

Detailed Assessment

2005 Confirmation of the exceedance of the annual mean objective for NO2 in Totton. Declaration of Air Quality Management Area in Totton (following full consultation process)

Progress Report

2006 Confirmed main source of NO2 in Totton is from traffic sources.

Further Assessment

2006 Installation of ‘Cut pollution, Cut Engine’ signs on roads leading to railway barrier.

2007 Exceedences of NO2 annual mean objective in Totton.

Progress Report


LAQM USA 2015 99

Year Comment Associated Report

2008 Exceedences of NO2 annual mean objective in Totton. Formal adoption of the Totton Air Quality Action Plan.

Progress Report Totton Air Quality Action Plan

2009 No monitored exceedance of the annual mean objective for NO2 in Totton at sites of relevant exposure.



Progress Report

2010 Feasibility study by Hampshire County Council into transport options for Totton to improve air quality within the Air Quality Management Area – concluded no feasible transport scheme is appropriate.

Feasibility Study


Progress Report



2013 No monitored exceedance of the annual mean objective for NO2 in Totton at sites of relevant exposure. Consider revoking Totton AQMA (NO2 annual mean objective) due to no recent exceedances at monitoring sites. However concerns regarding large housing development being planned outside AQMA but in close proximity.

Progress Report

2014 No monitored exceedance of the annual mean objective for NO2 in Totton at sites of relevant exposure. Consider revoking Totton AQMA (NO2 annual mean objective) due to no recent exceedances at monitoring sites. However concerns regarding large housing development being planned outside AQMA but in close proximity.

Progress Report

The declared Area Quality Management Area for Totton is shown below. The area was determined using monitoring results and following full consultation.


LAQM USA 2015 100


Measures taken to reduce annual mean nitrogen dioxide concentrations New Forest District Council has worked with Hampshire County Council (the regulatory authority for roads and transport in the District) to implement measures to reduce nitrogen dioxide concentrations in Totton with particular reference to the Air Quality Management Area. Nitrogen dioxide concentrations in the Totton Air Quality Management Area are influenced by:

Traffic queuing at a railway barrier closing in Junction Road for approximately 20 minutes in every hour.

Junction Road being one of the main routes off the A35 into Totton town centre, which whilst there is a HGV restriction on the road, is a bus route.

A supermarket car park being located north of Maynard Road, offering free parking in the town centre.

A transport feasibility study undertaken by Hampshire County Council in 2010 did not result in any transport related option which was feasible in terms of cost and which resulted in a noted reduction in nitrogen dioxide concentrations. Therefore it was determined there was limited scope to improve local air quality, and smarter options had to be implemented. Measures which were implemented included:

The installation of ‘Cut Engine, Cut Pollution’ signs at 4 points in Rumbridge Street, Junction Road and Maynard Road - on the approaches to the railway barriers;


LAQM USA 2015 101

Surveys determining the number of vehicles turning off their engines at the railway barrier. Currently determined to be in the region of 20%.

Improvements undertaken by Hampshire County Council to the pavements, pedestrian crossings and bus stops in the local area to encourage local residents to walk into Totton town centre rather than drive.

Monitoring in Totton Monitoring in Totton has been undertaken since 2002 using diffusion tubes, and since 2005 using an automatic analyser located in Junction Road. The locations of the monitoring sites are shown below (please note the automatic analyser is located at the same location of diffusion tube site 1), in addition to the monitoring results from both the automatic analyser and diffusion tube sites.


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Map showing monitoring locations in central Totton (including those no longer in use) and current AQMA


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Results of Automatic Monitoring of Nitrogen Dioxide at Totton: Comparison with Annual Mean Objective Details of monitoring locations

Notes: * data capture in 2014 less than 90% therefore results should be viewed with caution and used as guidance only

Site ID

Site Name Site Type Within AQMA

?

Annual mean

objective

(g/m3)


2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

1 Junction

Road, Totton Roadside Y 40 32 32 31 30 28 29 28 28 28 26*


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Results of Nitrogen Dioxide diffusion tube monitoring in Totton (2002 - 2014)

Site ID

Site

location Within

AQMA?

Annual Mean Concentration (µg/m3) - Adjusted for Biasb

2002 2003 2004 2005 2006 2007 2008

2009

2010

2011

2012

2013

2014

1 Junction Rd (analyser)

Y - - - 32.35 31.67 31.02 30.51 27.00 27.38 27.85 29.27 27.98 25.61

2 30 Junction

Road Y 44.73 45.88 39.14 35.76 34.85 37.52 32.64 27.16 27.13 26.01 30.55 30.76 27.41

3 23 Junction

Road Y 50.78 49.50 44.19 41.71 44.27 44.71 42.23 33.23 32.72 34.47 38.59 33.00a 32.98

4 25 Junction

Road Y - - - - - - - 24.54 26.83 26.73 27.63 25.87 23.31

5 26 Rumbridge

St Y - 35.17 33.91 37.15 34.12 36.71 35.20 26.43 29.82 29.02 33.51 30.92 28.18

6 2 Eling Lane

Y 40.10 40.76 39.51 39.66 38.06 36.99 36.31 28.62 29.18 30.94 33.49 32.42 27.58

7 Elingfield C’t

High St N - - - 31.49 35.69 35.67 35.29 26.67 27.63 29.41 31.25 28.12 25.06

8 High St

N - - - - - 38.29 36.09 26.46 29.27 27.94 29.46 26.43 23.05

9 114

Commercial Rd

N - - - 37.38 38.23 39.17 37.35 28.51 27.71 27.39 29.74 31.52 26.47

10 Commercial

Rd N - - - - - - - - - - - 26.31a 21.92

11 83 Ringwood

Rd N - - - 37.37 39.96 40.63 36.85 25.68 27.90 26.74 31.27 27.60 24.88

12 Ringwood Rd/ Maynard Rd

Y 36.82 41.38 37.32 35.09 35.40 36.75 35.09 28.85 28.56 32.65 34.73 30.83 27.99

13 Asda entrance

Y 36.94 39.39 36.26 35.55 36.78 36.41 36.63 29.18 28.86 32.22 32.83 27.95 26.47

14 1 Rose Road

N - - - 27.50 29.45 32.50 31.19 23.55 25.45 22.50 21.00 27.28a 20.44

15 68 Junction

Road N - - - 26.64 27.83 30.31 25.59 21.18 24.10 21.51 - - -


LAQM USA 2015 105

Site ID

Site

location Within

AQMA?

Annual Mean Concentration (µg/m3) - Adjusted for Biasb

2002 2003 2004 2005 2006 2007 2008

2009

2010

2011

2012

2013

2014

16 Commercial Road, Asda

N - - - 27.60 24.91 29.69 - - - - - - -

17 Library

N 27.05 29.38 23.49 22.86 22.16 21.43 - - - - - - -

18 Salisbury

Road N - - - 28.54 29.10 32.26 31.20 24.33 26.71 25.68 24.60 - -

19 Water Lane

N - - - 25.57 25.73 26.00 24.59 19.13 21.94 20.57 21.40 - -

20 Winsor Road

N - - - 29.21 29.90 30.53 - - - - - - -

Notes:

1. Results in red and bold = exceedance of the NO2 annual mean AQS objective of 40µg/m3

2. Results underlined are close to the NO2 annual mean objective

3. a Results have been “annualised” as in Box 3.2 of TG(09) if full calendar year data capture is less than 75% (as shown in Appendix D)

4.

b Diffusion tube sites have been locally bias adjusted



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Conclusions The monitoring undertaken in Totton since 2002 has been consistent, thorough and widespread, covering both the current Air Quality Management Area in Totton and at locations outside this Area. Therefore a detailed knowledge of nitrogen dioxide concentrations throughout Totton has been obtained over the previous 12 years. Whilst it is acknowledged that the measures to reduce nitrogen dioxide concentrations have been limited in Totton, the monitoring results from both automatic monitoring and diffusion tube monitoring have shown no exceedances of the annual mean objective for nitrogen dioxide within the current Air Quality Management Area since 2008. The monitoring has also shown that the annual mean nitrogen dioxide concentrations in Totton have been significantly below the objective level for a number of years. The production of a Detailed Assessment would typically be a review of the monitoring undertaken to date in Totton. Furthermore there would be no advantage gained by undertaking an additional modelling exercise on the area to support the extensive monitoring results already obtained for the area. As such the conclusions reached from a Detailed Assessment are unlikely to be different from those reached within this report. Therefore it is recommended that based on the monitoring evidence presented in this report, and particularly Appendix G, New Forest District Council should proceed to start the process to revoke the Totton Air Quality Management Area without the requirement to produce a Detailed Assessment. The Council is mindful that the revocation process would involve full consultation and Cabinet approval with monitoring likely to continue in Totton for a suitable period post revocation. In addition any planned re-development in Totton should include the requirement to consider the impact of the development on local air quality and the implementation of appropriate mitigation measures should they be required.

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