Author(s)

Rainer Friedrich

Abstract

Assessment and Improvement of Emission Data Invited contribution from the coordinator of subproject GENEMIS Rainer Friedrich IER, University of Stuttgart, Hessbruehlstr.49a, D-70 565 Stuttgart, Germany The aims of the EUROTRAC subproject GENEMIS-2 include: * the improvement of methods, models and emission factors for the generation of emission data; * the assessment of the accuracy and the validation of emission data; * the development and improvement of tools, that generate emission data for atmospheric models. In the following sections, the ongoing work in these areas and the first results are described. a) Improvement in methods, models and emission factors Special emphasis is given to VOC emissions, especially to the main source categories solvent use, road transport and forests, as for VOCs larger uncertainties are estimated than for NO% and The analysis of solvent use is difficult, as hundreds of processes,

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