Ozone holes

Published: Monday 30 November 1998

Bromine from sea salt destroys low- level ozone in the Arctic, says a German scientist. Chain reactions triggered by bromine oxide are known to destroy ozone. Thomas Wagner of the University of Heidelberg has used satellite data to find high levels of bromine oxide close to sea ice, suggesting that melting sea ice may also affect ozone at lower latitudes, where it is a pollu- tant, says the German scientist.

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