Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-11929-2017 |
A growing threat to the ozone layer from short-lived anthropogenic chlorocarbons | |
Oram, David E.1,2; Ashfold, Matthew J.3; Laube, Johannes C.2; Gooch, Lauren J.2; Humphrey, Stephen2; Sturges, William T.2; Leedham-Elvidge, Emma2,8; Forster, Grant L.1,2; Harris, Neil R. P.4; Mead, Mohammed Iqbal4,5; Abu Samah, Azizan5; Phang, Siew Moi5; Ou-Yang, Chang-Feng6; Lin, Neng-Huei6; Wang, Jia-Lin7; Baker, Angela K.8; Brenninkmeijer, Carl A. M.8; Sherry, David9 | |
2017-10-12 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Malaysia; Taiwan; Germany |
英文摘要 | Large and effective reductions in emissions of long-lived ozone-depleting substance (ODS) are being achieved through the Montreal Protocol, the effectiveness of which can be seen in the declining atmospheric abundances of many ODSs. An important remaining uncertainty concerns the role of very short-lived substances (VSLSs) which, owing to their relatively short atmospheric lifetimes (less than 6 months), are not regulated under the Montreal Protocol. Recent studies have found an unexplained increase in the global tropospheric abundance of one VSLS, dichloromethane (CH2Cl2), which has increased by around 60% over the past decade. Here we report dramatic enhancements of several chlorine-containing VSLSs (Cl-VSLSs), including CH2Cl2 and CH2ClCH2Cl (1,2-dichloroethane), observed in surface and upper-tropospheric air in East and South East Asia. Surface observations were, on occasion, an order of magnitude higher than previously reported in the marine boundary layer, whilst upper-tropospheric data were up to 3 times higher than expected. In addition, we pro-vide further evidence of an atmospheric transport mechanism whereby substantial amounts of industrial pollution from East Asia, including these chlorinated VSLSs, can rapidly, and regularly, be transported to tropical regions of the western Pacific and subsequently uplifted to the tropical upper troposphere. This latter region is a major provider of air entering the stratosphere, and so this mechanism, in conjunction with increasing emissions of Cl-VSLSs from East Asia, could potentially slow the expected recovery of stratospheric ozone. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000412845500001 |
WOS关键词 | NONMETHANE HYDROCARBONS ; STRATOSPHERIC OZONE ; GLOBAL DISTRIBUTION ; FIRN AIR ; EMISSIONS ; ATMOSPHERE ; TRANSPORT ; TRENDS ; DICHLOROMETHANE ; DISTRIBUTIONS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30785 |
专题 | 地球科学 |
作者单位 | 1.Univ East Anglia, Natl Ctr Atmospher Sci, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England; 2.Univ East Anglia, Sch Environm Sci, Ctr Ocean & Atmospher Sci, Norwich, Norfolk, England; 3.Univ Nottingham, Sch Environm & Geog Sci, Malaysia Campus, Semenyih 43500, Malaysia; 4.Cranfield Univ, Ctr Atmospher Informat & Emiss Technol, Sch Energy Environm & Agrifood Environm Technol, Cranfield, Beds, England; 5.Univ Malaya, Inst Ocean & Earth Sci, Kuala Lumpur, Malaysia; 6.Natl Cent Univ, Dept Atmospher Sci, Taoyuan, Taiwan; 7.Natl Cent Univ, Dept Chem, Taoyuan, Taiwan; 8.Max Planck Inst Chem, Air Chem Div, Mainz, Germany; 9.Nolan Sherry & Associates, London, England |
推荐引用方式 GB/T 7714 | Oram, David E.,Ashfold, Matthew J.,Laube, Johannes C.,et al. A growing threat to the ozone layer from short-lived anthropogenic chlorocarbons[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(19). |
APA | Oram, David E..,Ashfold, Matthew J..,Laube, Johannes C..,Gooch, Lauren J..,Humphrey, Stephen.,...&Sherry, David.(2017).A growing threat to the ozone layer from short-lived anthropogenic chlorocarbons.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(19). |
MLA | Oram, David E.,et al."A growing threat to the ozone layer from short-lived anthropogenic chlorocarbons".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.19(2017). |
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