An estimate of regional and global O3 damage from precursor NOx and VOC emissions.
The results of the ozone models of EMEP and Harwell are combined with the C-R (concentration-response) functions and economic valuation recommended by the ExternE Project of the European Commission.
The paper is exploratory, to assemble the available information, establish likely priority impact categories, and make recommendations for future research.
Impacts on health and agriculture are evaluated.
Based on the EMEP results, aggregate regional (Europe-wide) estimates of ozone damage, allocated per ton of precursor emission, are derived.
Calculations on the global scale, using results from the Harwell Global Ozone Model (and the same valuation per nL/L O3) indicate that damages outside Europe are likely to also be significant although somewhat smaller.
For the EMEP Model, the numbers per ton of precursor emission are approximately the same for NOx and for VOC.
For NOx, a value around $1875 (uncertainty range 375 to 10 000) per Mg NO2 equi was found ; for VOC, approximately $1100 per Mgvoc was found.
There is much uncertainty, especially in the C-R functions, and current assessments of ozone damages are, at best, order of magnitude estimates.
Even though the overlap between local, regional, and global models is not clear, the results suggest that ozone damage is dominated by regional impacts.
Mots-clés Pascal : Europe, Pollution air, Ozone, Troposphère, Formation polluant, Azote oxyde, Composé organique volatil, Impact environnement, Agriculture, Coût, Etude économique, Modélisation
Mots-clés Pascal anglais : Europe, Air pollution, Ozone, Troposphere, Pollutant creation, Nitrogen oxide, Volatile organic compound, Environment impact, Agriculture, Costs, Economic study, Modeling
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0020863
Code Inist : 001D16C02. Création : 31/05/1999.