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Science 6 August 1971:
Vol. 173. no. 3996, pp. 517 - 522
DOI: 10.1126/science.173.3996.517
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Articles

Reduction of Stratospheric Ozone by Nitrogen Oxide Catalysts from Supersonic Transport Exhaust

Harold Johnston 1

1 Department of Chemistry, University of California, Berkeley 94720

Although a great deal of attention has been given to the role of water vapor from supersonic transport (SST) exhaust in the stratosphere, oxides of nitrogen from SST exhaust pose a much greater threat to the ozone shield than does an increase in water. The projected increase in stratospheric oxides of nitrogen could reduce the ozone shield by about a factor of 2, thus permitting the harsh radiation below 300 nanometers to permeate the lower atmosphere.


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