气候变化领域集成服务门户(CCPortal): Accumulation of Perfluoroalkyl Compounds in Tibetan Mountain Snow: Temporal Patterns from 1980 to 2010

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DOI	10.1021/es4044775
	Accumulation of Perfluoroalkyl Compounds in Tibetan Mountain Snow: Temporal Patterns from 1980 to 2010
	Wang, Xiaoping; Halsall, Crispin; Codling, Garry; Xie, Zhiyong; Xu, Baiqing; Zhao, Zhen; Xue, Yonggang; Ebinghaus, Ralf; Jones, Kevin C.
通讯作者	Wang, XP (通讯作者)
发表日期	2014
ISSN	0013-936X
EISSN	1520-5851
起始页码	173
结束页码	181
卷号	48 期号:1
英文摘要	The use of snow and ice cores as recorders of environmental contamination is particularly relevant for per- and polyfluoroalky substances (PFASs) given their production history, differing source regions and varied mechanisms driving their global distribution. In a unique study perfluoroalkyl acids (PFAAs) were analyzed in dated snow-cores obtained from high mountain glaciers on the Tibetan Plateau (TP). One snow core was obtained from the Mt Muztagata glacier (accumulation period of 1980-1999), located in western Tibet and a second core from Mt. Zuoqiupo (accumulation period: 1996-2007) located in southeastern Tibet, with fresh surface snow collected near Lake Namco in 2010 (southern Tibet). The higher concentrations of Sigma PFAAs were observed in the older Mt Muztagata core and dominated by perfluorooctanesulfonic acid (PFOS) (61.4-346 pg/L) and perfluorooctanoic acid (PFOA) (40.8-243 pg/L), whereas in the Mt Zuoqiupu core the concentrations were lower (e.g., PFOA: 37.8-183 pg/L) with PFOS below detection limits. These differences in PFAA concentrations and composition profile likely reflect the upwind sources affecting the respective sites (e.g., European/central Asian sources for Mt Muztagata and India sources for Mt Zuoqiupu). Perfluorobutanoic acid (PFBA) dominated the recent surface snowpack of Lake Namco which is mainly associated with India sources where the shorter chain volatile PFASs precursors predominate. The use of snow cores in different parts of Tibet provides useful recorders to examine the influence of different PFASs source regions and reflect changing PFAS production/use in the Northern Hemisphere.
关键词	POLYCYCLIC AROMATIC-HYDROCARBONS POLYBROMINATED DIPHENYL ETHERS PERSISTENT ORGANIC POLLUTANTS PERFLUORINATED COMPOUNDS ORGANOCHLORINE PESTICIDES POLYFLUOROALKYL SUBSTANCES POLYCHLORINATED-BIPHENYLS PERFLUOROCARBOXYLIC ACIDS HISTORICAL TRENDS ICE CORE
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000329548800028
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258341
推荐引用方式 GB/T 7714	Wang, Xiaoping,Halsall, Crispin,Codling, Garry,et al. Accumulation of Perfluoroalkyl Compounds in Tibetan Mountain Snow: Temporal Patterns from 1980 to 2010[J]. 中国科学院青藏高原研究所,2014,48(1).
APA	Wang, Xiaoping.,Halsall, Crispin.,Codling, Garry.,Xie, Zhiyong.,Xu, Baiqing.,...&Jones, Kevin C..(2014).Accumulation of Perfluoroalkyl Compounds in Tibetan Mountain Snow: Temporal Patterns from 1980 to 2010.ENVIRONMENTAL SCIENCE & TECHNOLOGY,48(1).
MLA	Wang, Xiaoping,et al."Accumulation of Perfluoroalkyl Compounds in Tibetan Mountain Snow: Temporal Patterns from 1980 to 2010".ENVIRONMENTAL SCIENCE & TECHNOLOGY 48.1(2014).