Abstract
Chemical reactions in cloud and fog drops have been considered important to tropospheric chemistry since the earliest development of the subject in the nineteen fifties, when it was first recognized that clouds may play a critical role in the oxidation of sulphur dioxide and its removal from the atmosphere (Junge, 1963). In subsequent years, when the emphasis in atmospheric chemistry shifted toward gas phase reactions, clouds were frequently neglected. Clouds are not only difficult to treat in models, but a major obstacle to further development in the past was the lack of information on chemical reaction pathways in the aqueous phase of clouds. Penkett et al. (1979) started a revival of the field when he investigated the reactions of hydrogen peroxide and ozone with sulphur (IV) species such as HSO3¯ and SO3 2- in aqueous solution. Since then, much progress has been made by means of laboratory studies of reactions deemed applicable to the aqueous phase of clouds. The present brief review is primarily devoted to a description of the methods employed in such laboratory studies. While a number of examples are given for reactions of interest to atmospheric chemistry, it is not the intention of this article to treat cloud chemistry as a whole.
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Warneck, P. (1994). Aqueous Solution Chemistry. In: Moortgat, G.K., Barnes, A.J., Le Bras, G., Sodeau, J.R. (eds) Low-Temperature Chemistry of the Atmosphere. NATO ASI Series, vol 21. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-79063-8_8
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DOI: https://doi.org/10.1007/978-3-642-79063-8_8
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