Nitrous Acid (HNOi) Concentration Measurements And Estimation Of Dry Deposition Over Grassland In Eastern Germany
Price
Free (open access)
Transaction
Volume
36
Pages
5
Published
1999
Size
394 kb
Paper DOI
10.2495/EURO990442
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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