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UP: Fachverband Umweltphysik

UP 10: Poster: Umweltphysik

UP 10.14: Poster

Donnerstag, 5. März 2009, 17:48–19:00, VMP 9 Poster

Chemistry of N2O5 and NO3 in the Atmosphere: Laboratory and Field Studies — •Jim Thieser and John Crowley — Max-Planck-Institut für Chemie, Abteilung Luftchemie, Mainz, Deutschland

The NO3 radical and N2O5 play an important role in a number of atmospheric chemical processes, including conversion of NOx to nitrate and the nocturnal oxidation of VOC and DMS. Mineral dust is an important component of atmospheric aerosols, and both field observation and modeling studies suggest that mineral aerosols can significantly influence the tropospheric budgets of important trace gases (O3, NOy, and HOy). In spite of the important role played by NO3, N2O5, and mineral aerosols in atmospheric chemistry, observational data on NO3 and N2O5 are limited and heterogeneous interactions of NO3 and N2O5 are not sufficiently well characterised. The lack of data of field observation and experimental studies hinders progress in understanding several aspects of NO3 and N2O5 chemistry in the atmosphere.