Investigation of Real Car Exhaust in the EUPHORE Chamber

Introduction The use of reformulated and alternative fuels has been increasingly tested during recent years in order to improve air quality by lowering the ozone formation of air pollution in urban areas. However, most of these investigations were carried out rather indirectly using e.g. artificial exhaust gas mixtures. The investigations, which are presented here were focused on gasoline and diesel fuel formulation and its influence on atmospheric processes. The main objective was the investigation of real car exhaust in the European Photoreactor EUPHORE in order to improve the knowledge on atmospheric NOy chemistry, ozone formation and the emission and reactivity of particulates.