Fugitive Dust ProjectFugitive Dust ProjectPhase OnePhase One

The WRAP Emissions Forum contracted with a The WRAP Emissions Forum contracted with a team of contractors lead by ENVIRON to team of contractors lead by ENVIRON to produce regional PMproduce regional PM10 10 and PMand PM2.52.5 emissions emissions inventories for wind blown dust from vacant inventories for wind blown dust from vacant lands by employing an empirical methodology.lands by employing an empirical methodology.

These inventories are required by These inventories are required by §§309 of the 309 of the Regional Haze Rule and will be used in air Regional Haze Rule and will be used in air quality models as the basis for tracking quality models as the basis for tracking progress in achieving the visibility goals under progress in achieving the visibility goals under this rule.this rule.

Fugitive Dust ProjectFugitive Dust ProjectPhase OnePhase One

The original project, “Determining Fugitive Dust The original project, “Determining Fugitive Dust Emissions from Wind Erosion”, had two goals:Emissions from Wind Erosion”, had two goals:

1.1. to develop a general methodology, i.e., “The MacDougall to develop a general methodology, i.e., “The MacDougall Method”, and program code for estimating fugitive dust Method”, and program code for estimating fugitive dust emissions from wind erosion; and,emissions from wind erosion; and,

2.2. to develop a PM2.5 and PM10 emissions inventories for the to develop a PM2.5 and PM10 emissions inventories for the WRAP region modeling domain for 1996.WRAP region modeling domain for 1996.

The initial application of the methodology and the The initial application of the methodology and the resulting products were to be treated as starting resulting products were to be treated as starting point with an expectation of making refinements. point with an expectation of making refinements.

Fugitive Dust ProjectFugitive Dust ProjectPhase TwoPhase Two

Previous efforts related to this project were under the Previous efforts related to this project were under the purview of the Emissions Forum; however, all future purview of the Emissions Forum; however, all future work will be the responsibility of the Dust Emissions work will be the responsibility of the Dust Emissions Joint Forum.Joint Forum.

The objective of the follow on project:The objective of the follow on project:

1.1. Improve upon the initial work by applying the methodology Improve upon the initial work by applying the methodology with data that is more up to date and at a higher resolution.with data that is more up to date and at a higher resolution.

2.2. Assess model results based on adjustments to the modeling Assess model results based on adjustments to the modeling settings to determine if significant improvements can be settings to determine if significant improvements can be achieved through global fine-tuning.achieved through global fine-tuning.

Fugitive Dust ProjectFugitive Dust ProjectPhase TwoPhase Two

This project will result in updated EIs for PMThis project will result in updated EIs for PM1010 and PMand PM2.52.5 for the WESTERN REGION. for the WESTERN REGION.

Additionally, the model should be applied to Additionally, the model should be applied to high impact days (20% worst days), to high impact days (20% worst days), to determine the scope of application—monitoring determine the scope of application—monitoring emissions to determine what control strategies emissions to determine what control strategies should be applied, when the control strategies should be applied, when the control strategies should be applied, and the impact of such should be applied, and the impact of such control strategies. control strategies.

Fugitive Dust ProjectFugitive Dust ProjectPhase TwoPhase Two

The goal of the project is to improve upon The goal of the project is to improve upon the original project, “Determining Fugitive the original project, “Determining Fugitive Dust Emissions from Wind Erosion” Dust Emissions from Wind Erosion” (AKA, “The MacDougall Method”), and to (AKA, “The MacDougall Method”), and to produce revised PMproduce revised PM1010 and PM and PM2.52.5 emission emission inventories for fugitive dust from wind inventories for fugitive dust from wind erosion of vacant land based on wind tunnel erosion of vacant land based on wind tunnel studies.studies.

Fugitive Dust ProjectFugitive Dust ProjectPhase Two – Study AreaPhase Two – Study Area

The geographic area for this project The geographic area for this project is the WESTERN REGION, which is is the WESTERN REGION, which is identical to phase one.identical to phase one.

Fugitive Dust ProjectFugitive Dust ProjectPhase Two – Refinement SpecificationsPhase Two – Refinement Specifications

Apply calendar year 2002 meteorological hour-by-hour data at Apply calendar year 2002 meteorological hour-by-hour data at 12km X 12km resolution.12km X 12km resolution.

Apply more current land-use data at 12km X 12km resolution, Apply more current land-use data at 12km X 12km resolution, based on 1km X 1km resolution data.based on 1km X 1km resolution data.

Run Community Multi-scale Air Quality (CMAQ) with chemistry Run Community Multi-scale Air Quality (CMAQ) with chemistry turned off.turned off.

CMAQ will determine mixing height based MM5 input.CMAQ will determine mixing height based MM5 input.

Emissions will be calculated in the first boundary layer.Emissions will be calculated in the first boundary layer.

Inventories will be generated for the WESTERN REGION, which Inventories will be generated for the WESTERN REGION, which shall match the original project.shall match the original project.

Fugitive Dust ProjectFugitive Dust ProjectPhase TwoPhase Two

Specific objectives include the following:Specific objectives include the following:

1.1. To demonstrate the “Empirical Method for Determining Fugitive To demonstrate the “Empirical Method for Determining Fugitive Dust Emissions from Wind Erosion of Vacant Land”.Dust Emissions from Wind Erosion of Vacant Land”.

2.2. Ensure that the PMEnsure that the PM1010 and PM and PM2.52.5 emission inventories are emission inventories are developed using hour-by-hour meteorological data at 12km X developed using hour-by-hour meteorological data at 12km X 12km resolution for the WESTERN REGION.12km resolution for the WESTERN REGION.

3.3. Ensure that the PMEnsure that the PM1010 and PM and PM2.52.5 emission inventories are emission inventories are developed using a more current land-use dataset at 12km X developed using a more current land-use dataset at 12km X 12km resolution for the WESTERN REGION.12km resolution for the WESTERN REGION.

(Continued)(Continued)

Fugitive Dust ProjectFugitive Dust ProjectPhase TwoPhase Two

4.4. Produce a PMProduce a PM1010 emission inventory for the WESTERN REGION emission inventory for the WESTERN REGION for calendar year 2002.for calendar year 2002.

5.5. Produce a PMProduce a PM2.52.5 emission inventory for the WESTERN REGION emission inventory for the WESTERN REGION for calendar year 2002.for calendar year 2002.

6.6. Produce a PMProduce a PM1010 emission inventory for the WESTERN REGION emission inventory for the WESTERN REGION for the twenty percent (20%) worst days, high impact days, during for the twenty percent (20%) worst days, high impact days, during calendar year 2002.calendar year 2002.

7.7. Produce a PMProduce a PM2.52.5 emission inventory for the WESTERN REGION emission inventory for the WESTERN REGION for the twenty percent (20%) worst days, high impact days, during for the twenty percent (20%) worst days, high impact days, during calendar year 2002calendar year 2002

(Continued)(Continued)

Fugitive Dust ProjectFugitive Dust ProjectPhase TwoPhase Two

8.8. Refine the general modeling methodology to calculate wind Refine the general modeling methodology to calculate wind erosion, via datasets developed/compiled under terms of this erosion, via datasets developed/compiled under terms of this contract.contract.

9.9. Refine program code for PMRefine program code for PM1010 and PM and PM2.52.5 for emissions modeling. for emissions modeling.

Fugitive Dust Project