Objective To investigate the tropospheric oxidation of selected aromatic compounds.A fast cycle of odd hydrogen species is involved in the formation of tropospheric ozone. The chain length of the cycle and the number of NO molecules oxidised to NO2 per revolution, two central parameters of tropospheric chemistry, are critically dependent on the composition of VOC emissions.The contribution of aromatic compounds to these parameters will be evaluated according to the following points :1 Identification of the primary (i.e. stable, non-radical) products from the reactions of aromatic compounds initiated by the OH radical.2 The number of HO2 radicals formed and the number of NO oxidised to NO2.3 The atmospheric chemistry of the primary products initiated by photolysis or OH radicals and the secondary products formed.The fundamental first point will be tackled from two sides :a) Kinetic experiments with fast time resolution including cycling experiments and measurements of formation kinetics and yields of probable primary products.b) Product studies with two approaches to overcome the problem of fast secondary reactions of the primary products : (i) Measurements with total consumption of the aromatic precursor as low as possible at various low (including zero) concentrations of NOX. (ii) Investigating the third point first, considering the results in the interpretation of product spectra formed from the parent aromatics.The results of the project should improve models of the tropospheric free radical chemistry, which are used in planning photooxidant control strategies. Fields of science natural scienceschemical sciencesorganic chemistryvolatile organic compoundsnatural scienceschemical scienceselectrochemistryelectrolysissocial sciencespolitical sciencespolitical transitionsrevolutionsnatural scienceschemical sciencesorganic chemistryaromatic compounds Programme(s) FP3-ENV 1C - Specific research and technological development programme (EEC) in the field of the environment, 1990-1994 Topic(s) 0105 - Tropospheric physics and chemistry Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. EU contribution No data Address Nikolai-Fuchs-Strasse 1 30625 HANNOVER Germany See on map Links Website Opens in new window Total cost No data Participants (4) Sort alphabetically Sort by EU Contribution Expand all Collapse all BERGISCHE UNIVERSITAET GESAMTHOCHSCHULE WUPPERTAL Germany EU contribution No data Address Gauss-Straße 20 42097 WUPPERTAL See on map Total cost No data Centre National de la Recherche Scientifique (CNRS) France EU contribution No data Address Université des Sciences et Technologie 59655 Villeneuve-d'Ascq See on map Total cost No data RISOE NATIONAL LABORATORY Denmark EU contribution No data Address Frederiksborgvej 399 4000 ROSKILDE See on map Total cost No data University of Patras Greece EU contribution No data Address Karatheodori 26500 PATRAS See on map Total cost No data
