气候变化领域集成服务门户(CCPortal): Atmospheric lifetimes of long-lived halogenated species

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DOI	10.1126/science.259.5092.194
	Atmospheric lifetimes of long-lived halogenated species
	Ravishankara A.R.; Solomon S.; Turnipseed A.A.; Warren R.F.
发表日期	1993
ISSN	0036-8075
起始页码	194
结束页码	199
卷号	259 期号:5092
英文摘要	The atmospheric lifetimes of the fluorinated gases CF4, C 2F6, c-C4F8, (CF3) 2c-C4F6, C5F12, C 6F14, C2F5Cl, C2F 4Cl2, CF3Cl, and SF6 are of concern because of the effects that these long-lived compounds acting as greenhouse gases can have on global climate. The possible atmospheric loss processes of these gases were assessed by determining the rate coefficients for the reactions of these gases with O(1D), H, and OH and the absorption cross sections at 121.6 nanometers in the laboratory and using these data as input to a two-dimensional atmospheric model. The lifetimes of all the studied perfluoro compounds are >2000 years, and those of CF3Cl, CF 3CF2Cl, and CF2ClCF2Cl are >300 years. If released into the atmosphere, these molecules will accumulate and their effects will persist for centuries or millennia.
英文关键词	Atmospheric composition; Chemical reactions; Climatology; Environmental impact; Greenhouse effect; Halogen compounds; Organic compounds; Reaction kinetics; Fluorinated gas atmospheric lifetimes; Fluorinated gas reaction kinetics; Global climate changes; Global warming; Greenhouse gases; Inert fluorinated organic compounds; Long-lived halogenated species; Long-lived organic molecules; Air pollution; fluorocarbon; article; atmosphere; lifespan; priority journal; atmospheric lifetime; fluorinated gas; greenhouse gas; halongenated species
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245188
作者单位	National Oceanic and Atmospheric Administration, Aeronomy Laboratory, Boulder, CO 80303; Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder, CO 80309; Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309; Centre for Environmental Technology, Imperial College of Science, Technology, and Medicine, 48 Prince's Gardens, London SW7 2PE, United Kingdom
推荐引用方式 GB/T 7714	Ravishankara A.R.,Solomon S.,Turnipseed A.A.,et al. Atmospheric lifetimes of long-lived halogenated species[J],1993,259(5092).
APA	Ravishankara A.R.,Solomon S.,Turnipseed A.A.,&Warren R.F..(1993).Atmospheric lifetimes of long-lived halogenated species.Science,259(5092).
MLA	Ravishankara A.R.,et al."Atmospheric lifetimes of long-lived halogenated species".Science 259.5092(1993).