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Prather & Spivakovsky 1990
Prather, M. and Spivakovsky, C.M. (1990). Tropospheric OH and the lifetimes of hydrochlorofluorocarbons. Journal of Geophysical Research 95: doi: 10.1029/90JD01119. issn: 0148-0227.

Hydrochlorofluorocarbons (HCFCs) may be used as alternatives for the chlorofluorocarbons (CFCs). Lifetimes for the HCFCs are predicted here in two ways: integrating their loss with a global model, and scaling to another compound with a better known lifetime. Both approaches are shown here to yield similar results. Three-dimensional fields of modeled tropospheric OH concentrations are used to calculate lifetimes against destruction by OH for the HCFCs and other hydrogenated halocarbons. The OH fields are taken from a three-dimensional chemical transport mdoel et al., 1990a> that accurately simulates the global measurements of methyl chloroform (derived lifetime of 5.5 yr). The lifetimes of various hydro-halocarbons are shown to be insentitive to possible spatial variations and seasonal cycles. It is possible to scale the HCFC lifetimes to that of methyl chloroform or methane by using a ratio of the rate coefficients for reaction with OH at an appropriate temperature, about 277 K. ¿American Geophysical Union 1990

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Abstract

Keywords
Atmospheric Composition and Structure, Troposphere—composition and chemistry
Journal
Journal of Geophysical Research
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Publisher
American Geophysical Union
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