Atmospheric Chemistry of Urban Surface Films

D. J. Donaldson1, T. F. Kahan1, N. O. A. Kwamenau, S. R. Handley1, and C. Barbier1

'Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3HS, Canada 2Current address: School of Chemistry, University of Bristol, Bristol BS8 ITS, United Kingdom

The heterogeneous chemistry taking place in and on the films which coat impervious urban surfaces has received almost no attention to date. The chemical composition of such surface films suggests that heterogeneous oxidation reactions and photochemical transformations could play important roles in the environment, potentially affecting local air quality. In this paper we briefly review our work in this area.

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