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Pure Appl.Chem. Vol. 68, No. 9, pp. 1757-1769 (1996)

The Atmospheric Fate and Impact of Hydrochlorofluorocarbons and Chlorinated Solvents

Howard Sidebottom(i) and James Franklin(ii)
(i, Department of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland; ii, Alternative Fluorocarbon Environmental Acceptability Study (AFEAS), The West Tower - Suite 400, 1333 H Street NW, Washington DC, USA)

A very considerable body of data pertaining to the atmospheric behaviour of hydrochlorofluorocarbons (HCFCs) and chlorinated solvents is now available and leads to the following conclusions: (a) these compounds, with the exception of 1,1,1-trichloroethane, make a small or insignificant contribution to stratospheric ozone depletion, global warming, "photo-chemical smog", "acid rain", or chloride and fluoride levels in precipitation; (b) it seems highly unlikely that the chlorinated solvents degrade in the atmosphere to give chloroacetic acids as major products, as has often been claimed in the literature.

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