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SO2oxidation in cloud drops containing NaCl or sea salt as condensation nuclei

Authors
Journal
Atmospheric Environment (1967)
0004-6981
Publisher
Elsevier
Publication Date
Volume
21
Issue
4
Identifiers
DOI: 10.1016/0004-6981(87)90096-5
Disciplines
  • Chemistry

Abstract

Abstract Experimental results from cloud-chamber studies provide direct evidence that NaCl, artificial sea salt and natural sea salt promote faster rates of aqueous SO 2 oxidation than observed in the absence of these salts. However, the chemical basis for this effect has not been clarified. Oxidation rates > 30% h −1are observed in cloud-chamber experiments with 0.4 μm-diameter salt particles as cloud nuclei and a cloud pH of 6. SO 2 oxidation under similar atmospheric conditions might account for the rapid formation of sulfate observed in marine fogs.

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