Ozone layer
Sir,—“The Economist,” in journalese style (July 5), says that “scientists have dismally predicted that an ecological mess will be created by pollutants from aerosol sprays." Since 1979 there has been a drastic curtailment of the use of fluorocarbons in aerosols. The Concorde supersonic transport aircraft (S.T.A.) are still flying, but we do not know if more military S.T.A. are now in use. M. J. McEwan, of Canterbury University, in his paper, “Stratospheric Pollution,” wrote in the 1970 s that S.T.A. exhaust gases contained nitrogen oxides which could cause a substantial decrease in stratospheric ozone. Now, in round figures, a one per dent loss in ozone means a three per cent increase in ultraviolet radiation and probably a three per cent to five per cent increase in skin cancer. The “sudden rush by atmospheric chemists to enjoy springtime in Antarctica” is more than justified. — Yours, etc., PATRICK NEARY. July 6, 1986.
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Press, 9 July 1986, Page 16
Word Count
152Ozone layer Press, 9 July 1986, Page 16
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