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Improved Methodologies for NO2 Exposure Assessment in the EU

Publication date: 

15 Oct 2017

Ref: 

http://ec.europa.eu/environment/air/publications/models.htm

Author(s): 

Maiheu, B., Williams, M. L., Walton, H. A., Janssen, S., Blyth, L., Velderman, N., Lefebvre, W., Vanhulzel, M. & Beevers, S. D

Publication type: 

Article

Abstract: 

Elevated concentrations of NO2 in the ambient air and the health impact attributable to NO2 exposure are of increasing societal concern: the European Environment Agency (EEA) estimates this (based on 10km spatial scale modelling) to be in the order of more than 70.000 premature deaths across the EU-28 in the year 2012 alone (EEA, 2015). However, the current European Commission's Clean Air Policy Package does not include the health impacts of NO2 exposure mainly because of the current lack of a robust methodology or tool for the assessment of NO2 exposure, and the use of appropriate concentration-response relationships. To address this, DG ENV has commissioned VITO (BE) and King's College London (UK) under service contract 070201/2015/SER/717473/C.3 to propose methods and tools that are coherent with exposure metrics used when deriving the appropriate exposure response relationships and
compatible with currently used integrated assessment modelling tools of the EU. The ultimate objective of the contract is to develop a (or refine an existing) "module" for improved NO2 exposure assessment for health impact assessment and Cost Benefit Analyses (CBA). This report proposes an improved methodology for NO2 exposure assessment at EU scale. The methodology emerged from an extensive literature survey listing different NO2 assessment methodologies (Maiheu et al., 2016) and from a number of recommendations formulated in the wake of an expert workshop organized by the project team at the WHO Task Force Meeting in Bonn on the 17 May 2016.