The ozone situation in Germany: state of knowledge, research gaps and recommendations : documentation of a workshop on ozone pollution in Germany, which took place on 19 and 20 November 2019 at the German Environment Agency in Dessau

In: Dokumentationen 04/2020

Abstract

Abstract: Ozone situation in Germany: Ozone is still a threat to human health and vegetation and therefore an important topic in Germany. A workshop, organized by the German Environment Agency (Umweltbundesamt) and the Institute for Advanced Sustainability Studies (IASS Potsdam), addressed this issue. Experts discussed the current state of knowledge on processes relevant for ozone, the need for improvement concerning models and measurements, the quality of the current emission inventories, and the contribution of the regional ozone production to the overall pollution. Also, general recommendations for emission reduction of ozone precursors in Germany were discussed and knowledge gaps as well as further research needs identified. Examples for results of the discussions are the following recommendations: - further reduction of anthropogenic NO x-emissions, - improvement of the level of detail of NMVOC-speciation in anthropogenic emission inventories, - update biogenic VOC-emissions for chemistry transport models, - add regular isoprene monitoring and further campaign-based measurements of isoprene emissions from vegetation under German conditions, - establish model intercomparison studies with a focus on ozone at different scales