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Halogenated Hydrocarbons in and over the Atlantic


DURING the past few decades the production of the chlorofluorocarbons, the propellant solvents for aerosol dispensers, has grown exponentially. R. L. McCarthy (unpublished) estimates that the integrated production of CCl2F2 and of CCl3F, the two principal compounds of the class, was about one megaton of each in mid 1971; they are unusually stable chemically and only slightly soluble in water and might therefore persist and accumulate in the atmosphere. Preliminary tests in 1970 showed that CCl3F was present in the air over Ireland at concentrations exceeding 10−11 by volume1.

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LOVELOCK, J., MAGGS, R. & WADE, R. Halogenated Hydrocarbons in and over the Atlantic. Nature 241, 194–196 (1973).

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