Global three-dimensional model calculations of the budgets and present-day atmospheric lifetimes of CF sub 2 C l CFC l sub 2 (CFC-113) and CHC l F sub 2 2 (CFC-22)

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Geophysical Research Letters; (USA)

DOI:https://doi.org/10.1029/GL016i010p01153· OSTI ID:5196296

Golombek, A; Prinn, R G ^[1]

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1. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology (US)

The annual percentage increases in concentrations of the chlorofluorocarbons CF{sub 2}ClCFCl{sub 2} (CFC-113, an industrial solvent) and CHClF{sub 2} (CFC-22, a refrigerant) are the highest among major chlorofluorocarbons in the atmosphere today. We have computed the present-day atmospheric lifetimes for these species using a global three-dimensional dynamical-chemical model. The present-day lifetimes of both are long (15.5 years for CHClF{sub 2}, and 136 or 195 years for CF{sub 2}ClCFCl{sub 2} depending on assumed O{sub 2} absorption cross-sections) underscoring the need to decrease their emissions in order to minimize their future role in ozone destruction and greenhouse warming. {copyright} American Geophysical Union 1989

• OSTI ID: 5196296
• Journal Information: Geophysical Research Letters; (USA), Journal Name: Geophysical Research Letters; (USA) Vol. 16:10; ISSN 0094-8276; ISSN GPRLA
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
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COMPUTER CALCULATIONS
EARTH ATMOSPHERE
ENVIRONMENTAL EFFECTS
FLUIDS
GLOBAL ASPECTS
GREENHOUSE EFFECT
HALOGENATED AROMATIC HYDROCARBONS
LAYERS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
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