"e78ae4ce-807a-4417-ad6e-a458c6da6638" . "CHLOROFLUOROCARBONS"^^ . "CFCs are very stable chemical compounds, used in refrigerants, solvent, and\n(in the past in the U.S.) aerosols, which release chlorine (important) and\nfluorine (less important) into the upper atmosphere. In the stratosphere,\nCFCs are photolyzed (by incoming solar UV) to form carbon dioxide, CO2,\nhydrogen fluoride, HF, and ultimately (after multiple UV absorption\nevents) chlorine radicals. These chlorine species are crucial in the\ndestruction of the ozone layer over Antarctica and probably elsewhere (see\nchlorine). [Environmental Science and Technology; v 28; pages 1619-1622;\n1994.]"^^ . .