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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