Author(s)

T. Berndt, O. Boge and M. Hermann

Abstract

Gas-Phase Reaction of NO] Radicals with p-Pinene Guest contribution T Berndt, O Boge and M. Hermann Institutfur Tropospharenforschung e.V., Permoserstrafie 15, 04303 Leipzig, Germany Introduction Monoterpenes, in particular |3-pinene, are amongst the most abundant naturally emitted hydrocarbons in the troposphere, with a globally averaged annual emission of ca. 125 Tg C (Guenther et al, 1995). Thus, biogenic hydrocarbons play an important role in the chemistry of the troposphere. Their degradation can be initiated by the reaction with OH radicals, OB and NOg radicals. Tropospheric lifetimes show that the night-time reaction of NOg radicals with terpenes is an important sink for such substances. In spite of the importance of terpenes in the troposphere, the knowledge of product distributions and mechanisms of the radical or ozone-initiated degradation is very limited. This fact is valid especially for NOs radical reactions. Exper

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