WIT Press


Nitrous Acid (HNOi) Concentration Measurements And Estimation Of Dry Deposition Over Grassland In Eastern Germany

Price

Free (open access)

Paper DOI

10.2495/EURO990442

Volume

36

Pages

5

Published

1999

Size

394 kb

Copyright

WIT Press

Author(s)

G. Spindler, E. Bruggemann and H. Herrmann

Abstract

Nitrous Acid (HNOi) Concentration Measurements and Estimation of Dry Deposition over Grassland in Eastern Germany Guest contribution G Spindler, E Brtiggemann and H Herrmann Institutfur Tropospharenforschung e.V., Permoserstrafie 75, D-04303 Leipzig, Germany Introduction and results The importance of nitrous acid in tropospheric chemistry has been recognised (Harrison and Kitto, 1994; Lammel and Cape, 1996). Its significance lies especially in its ability to undergo rapidly photolysis to form the hydroxyl radical (Eq. 1) (Platt et a!., 1980). HNO2 + ho -> NO + OH (1) Measurements of the concentration of nitrous acid vapour by a wet annular denuder (Wyers et al, 1993) over grassland at the Melpitz research site (Spindler et al, 1996; Gnauk et al, 1997) in Germany (Federal State of Saxony) were performed in 1995. For a comparison of the we

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