Mathematics – Logic
Scientific paper
Dec 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985orli...15..279r&link_type=abstract
Origins of Life (ISSN 0302-1688), vol. 15, no. 4, 1985, p. 279-297.
Mathematics
Logic
2
Atmospheric Composition, Chlorocarbons, Earth Atmosphere, Methane, Chemical Reactions, Chlorofluoromethane, Gas Chromatography, Geomagnetic Latitude, Greenhouse Effect, Ozone, Photodissociation, Time Dependence, Troposphere, Vertical Distribution
Scientific paper
A study of the concentration of CCl3F, CCl2F2, CCl4, CH3CCl3, and CH4 in the atmosphere, due to their contribution to the green house effect, is presented. The chemical reactivity of CCl3F and CCl2F2 is investigated. The reactions which explain the ozone including the free radicals of oxides of hydrogen, nitrogen, and chlorine in the stratosphere are given. CCl2F2 and CCl3F concentrations obtained from various latitudes are studied using gas chromatography; a constant increase in CCl3F concentration is observed because of the continued manufacturing and release of these molecules to the atmosphere and the lack of a rapid removal process for these molecules. Comparisons of concentration data obtained from this study with Chemical Manufacturer Association data for 1970-1982 are provided. The concentrations of carbon tetrachloride, methane, and methyl chloroform are analyzed. It is concluded that there is a steady increase in the amount of methane in the air and this is attributed to biological anaerobic conditions.
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