Atmospheric carbontetrafluoride (CF4): Sources and trends
- 1 October 1985
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 12 (10) , 671-672
- https://doi.org/10.1029/gl012i010p00671
Abstract
Concentrations of carbontetrafluoride (CF4) observed at the south pole suggest that this inert trace gas is accumulating in the earth's atmosphere at about 1.3 (0.8‐2) pptv/yr. This amounts to an average increase of about 1.8 (1‐3) × 1010 gms/yr and can be explained by the estimated emissions of CF4 from aluminum manufacturing. Although it is still not possible to determine how much, if any, of the present atmospheric content of CF4 is from natural sources, it appears that these sources are small (≦109 gm/yr) and therefore will be extremely difficult to identify and evaluate.Keywords
This publication has 6 references indexed in Scilit:
- Atmospheric carbonyl sulfide (OCS): Techniques for measurement in air and waterChemosphere, 1982
- Atmospheric measurements of CF4 and other fluorocarbons containing the CF3 groupingJournal of Geophysical Research: Oceans, 1981
- Climatic Effects Due to Halogenated Compounds in the Earth’s AtmosphereJournal of the Atmospheric Sciences, 1980
- Atmospheric Carbon Tetrafluoride: A Nearly Inert GasScience, 1979
- Measurement of carbon tetrafluoride in the atmosphereNature, 1979
- Determination of Atmospheric Halocarbons by A Temperature-Programmed Gas Chromatographic Freezeout Concentration MethodJournal of the Air Pollution Control Association, 1977