ozone attenuation (depletion)

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The biosphere's protective ionized ozone layer is vulnerable to destruction by several varieties of ozone-destroying substances that convert ozone to oxygen. The best known of these are the chlorofluorocarbon compounds (CFCs) that were widely used as refrigerants, industrial solvents, and cleansing agents and were believed to be inert but decompose to chlorine monoxide, which degrades stratospheric ozone molecules to oxygen. Bromine and other halogen compounds, e.g., used as fertilizers for rice crops, have a similar action, and so do additives for supersonic aircraft fuel.

Subjects: Public Health and Epidemiology.

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