DOI: 10.1002/2015GL063783
论文题名: Growth in stratospheric chlorine from short-lived chemicals not controlled by the Montreal Protocol
作者: Hossaini R. ; Chipperfield M.P. ; Saiz-Lopez A. ; Harrison J.J. ; Von Glasow R. ; Sommariva R. ; Atlas E. ; Navarro M. ; Montzka S.A. ; Feng W. ; Dhomse S. ; Harth C. ; Mühle J. ; Lunder C. ; O'Doherty S. ; Young D. ; Reimann S. ; Vollmer M.K. ; Krummel P.B. ; Bernath P.F.
刊名: Geophysical Research Letters
ISSN: 0094-9414
EISSN: 1944-9145
出版年: 2015
卷: 42, 期: 11 起始页码: 4573
结束页码: 4580
语种: 英语
英文关键词: dichloromethane
; Montreal Protocol
; ozone
; phosgene
; stratosphere
; VSLS
Scopus关键词: Dichloromethane
; Ozone
; Surface measurement
; Upper atmosphere
; 1 ,2-dichloroethanes
; Chemical mechanism
; Global atmospheric models
; Montreal Protocols
; Parts per trillion
; Phosgene
; Tetrachloroethene
; VSLS
; Chlorine
英文摘要: We have developed a chemical mechanism describing the tropospheric degradation of chlorine containing very short-lived substances (VSLS). The scheme was included in a global atmospheric model and used to quantify the stratospheric injection of chlorine from anthropogenic VSLS (ClyVSLS) between 2005 and 2013. By constraining the model with surface measurements of chloroform (CHCl3 ), dichloromethane (CH2 Cl2 ), tetrachloroethene (C2 Cl4 ), trichloroethene (C2 HCl3 ), and 1,2-dichloroethane (CH2 ClCH2 Cl), we infer a 2013 ClyVSLS mixing ratio of 123 parts per trillion (ppt). Stratospheric injection of source gases dominates this supply, accounting for ∼83% of the total. The remainder comes from VSLS-derived organic products, phosgene (COCl2 , 7%) and formyl chloride (CHClO, 2%), and also hydrogen chloride (HCl, 8%). Stratospheric ClyVSLS increased by ∼52% between 2005 and 2013, with a mean growth rate of 3.7 ppt Cl/yr. This increase is due to recent and ongoing growth in anthropogenic CH2 Cl2 - the most abundant chlorinated VSLS not controlled by the Montreal Protocol. ©2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84934440324&doi=10.1002%2f2015GL063783&partnerID=40&md5=e61389d8f57c7d90640cc18ee7455ef4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9029
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Recommended Citation:
Hossaini R.,Chipperfield M.P.,Saiz-Lopez A.,et al. Growth in stratospheric chlorine from short-lived chemicals not controlled by the Montreal Protocol[J]. Geophysical Research Letters,2015-01-01,42(11).