Definition: Ozone-depleting substance

Environment

A compound that contributes to stratospheric ozone depletion. Ozone-depleting substances (ODS) include CFCs, HCFCs, halons, methyl bromide, carbon tetrachloride and methyl chloroform. ODS are generally very stable in the troposphere and only degrade under intense ultraviolet light in the stratosphere. When they break down, they release chlorine or bromine atoms, which then deplete the ozone.
Source:
Eurostat, The Environmental Goods and Services Sector (2009 Edition), Office for Official Publications of the European Communities, Luxembourg, 2009
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