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Science 21 July 1972:
Vol. 177. no. 4045, pp. 255 - 256
DOI: 10.1126/science.177.4045.255
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Articles

Carbon Monoxide and Nitric Oxide Consumption in Polluted Air: The Carbon Monoxide-Hydroperoxyl Reaction

A. A. Westenberg 1

1 Applied Physics Laboratory, Johns Hopkins University, Silver Spring, Maryland 20910

A recent laboratory measurement of the ratio of the rate constant for the reaction CO + HO 2 rarr C02 + OH relative to that for H + HO2 rarr 2OH indicates that the former reaction is probably faster than CO + OH rarr CO2 + H. On this basis a simple analysis is given showing that the calculated lifetime of nitric oxide in polluted atmospheres would be appreciably longer than that estimated on the assumption that the carbon monoxide-hydroperoxyl reaction may be neglected. A fast carbon monoxide-hydroperoxyl reaction implies that the cyclic consumption of carbon monoxide (an atmospheric sink) could occur even with no nitric oxide present.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The Hydroperoxyl Radical in Atmospheric Chemical Dynamics: Reaction with Carbon Monoxide.
D. D. Davis, W. A. Payne, and L. J. Stief (1973)
Science 179, 280-282
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Science. ISSN 0036-8075 (print), 1095-9203 (online)