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5487609 
Journal Article 
Atmospheric fluorocarbons and methyl chloroform at the South Pole 
Rasmussen, RA; Khalil, MAK 
1982 
0 
Antarctic Journal of the United States
ISSN: 0003-5335 
17 
5 
203-205 
English 
is also published as 2780686 Atmospheric fluorocarbons and methyl chloroform at the South Pole
The ultimate aim of our research is to determine exactly how human activities are modifying the composition of the Earth's atmosphere and what effect these changes will eventually have on the global environment. In this article the authors discuss changes in the atmospheric abundances of the manmade gases CCl sub(3)F, CCl sub(2)F sub(2), CHClF sub(2) (fluorocarbon-22; F-22), C sub(2)Cl sub(3)F sub(3) (fluorocarbon-113; F-113), and CH sub(3)CCl sub(3) (methyl chloroform) over the past 8 years. These gases may not only deplete the ozone layer but may also add to global warming. The very presence of these gases at the South Pole, at concentrations not much less than those in the Northern Hemisphere, attests to their long atmospheric lifetimes and their great potential for accumulating in the environment. They are reporting, for the first time, steady increases of F-22 and F-113 at the South Pole; our latest observations on F-11, F-12, and CH sub(3)CCl sub(3) show that these gases are not increasing as repidly as they did in earlier years. 
fluorocarbons; methyl chloroform; Ecology Abstracts; pollution levels; Antarctica; air pollution; D 04801:Pollution monitoring and detection