Setting the threshold: An analysis of different approaches for the
definition of exemptions to water quality objectives in the European Union
Observatorio del Agua
Antonio Bolinches
Lucia De Stefano
Javier Paredes-Arquiola
Carlotta Valerio
Alberto Garrido
https://doi.org/10.5194/egusphere-egu2020-9045
Session HS5.1.2, Abstract EGU2020-9045
May 6, 2020
Water Framework Directive
WWTP
Impact
Pressures Environmental Objective
ExemptionsorMeasures
Water Framework Directive (WFD, Article 4) requires the achievement of the good status of water bodies but allows for the declaration of exemptions due to lack of technical feasibility or disproportionate costs.
Exemptions to Nitrogen Environmental Objectives
EEA code QE3-1-6-1
Status description
Definition of mitigation measures
Measure costsExemptions in water bodies
Effluent authorisations
Pressure monitoringModelling
Cost analysis
Monitoring network
CBA
Modelling
ImPress cycle
Study area: six catchments in the EU
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0 10 000 000 20 000 000 30 000 000 40 000 000 50 000 000 60 000 000 70 000 000 80 000 000
Urb
an p
oin
t lo
ad
Diffuse pollution
Results: application of exemptions according to impact level
