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8632340 
Journal Article 
Atmospheric diffusion and chemical reaction of the chlorofluoromethanes CHFCl2 and CHF2Cl 
Seigneur, C; Caram, H; Carr Jr., RW 
1977 
Yes 
Atmospheric Environment (1967)
ISSN: 0004-6981 
11 
3 
205-214 
English 
The behavior of the chlorofluoromethanes CHFCl2 and CHF2Cl in the atmosphere is investigated. The rates of removal by rainout and hydrolysis are estimated to be negligible. Hydrogen abstraction by hydroxyl radicals appears to be an important mechanism for the removal of these compounds. Their photolysis can occur in the stratosphere only, where reactions with singlet oxygen atoms are also of interest. Calculations of reaction and diffusion in the atmosphere, up to 60km, are done, using two different sets of chemical and atmospheric data, as well as two different calculational procedures. The model calculations predict fluorocarbon fluxes at the tropopause ranging from 1 to 3% of the ground level input flux for CHFCl2, and from 4 to 12% of the ground level input flux for CHF2Cl. © 1977.