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Abstract

The reaction between NO(3) and DMS in air has been studied in a 480 L reaction chamber. Intermediates and end products were identified by FT-IR and ion chromatography. HNO(3), CH(2)0, SO(2) and methanesulphonic acid were found to be the main products of the reaction, with the latter as the most abundant sulphur containing product. Organic peroxynitrates and CH(3)SNO(2) have been identified as intermediates from their characteristic spectral features. Based on the results obtained, a mechanism for the reaction DMS NO(3) is proposed, which has hydrogen abstraction as the first step. In the marine troposphere this reaction, with formation of HNO(3) which is removed by deposition, may represent an efficient nighttime sink for NO(X).

Additional information

Authors: HJORTH J, JRC Ispra, Environment Institute, 21020 Ispra (VA) (IT);JENSEN N, JRC Ispra, Environment Institute, 21020 Ispra (VA) (IT);LOHSE C, JRC Ispra, Environment Institute, 21020 Ispra (VA) (IT);RESTELLI G, JRC Ispra, Environment Institute, 21020 Ispra (VA) (IT);SKOV H, JRC Ispra, Environment Institute, 21020 Ispra (VA) (IT)
Bibliographic Reference: Paper presented: Fifth European Symposium on Physico-Chemical Behaviour of Atmospheric Pollutants, Villa Ponti (IT), Sept. 25-29, 1989
Availability: Available from (1) as Paper EN 35027 ORA
Record Number: 198911134 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en