气候变化领域集成服务门户(CCPortal): Occurrence and spatial distribution of neutral perfluoroalkyl substances and cyclic volatile methylsiloxanes in the atmosphere of the Tibetan Plateau

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DOI	10.5194/acp-18-8745-2018
	Occurrence and spatial distribution of neutral perfluoroalkyl substances and cyclic volatile methylsiloxanes in the atmosphere of the Tibetan Plateau
	Wang, Xiaoping; Schuster, Jasmin; Jones, Kevin C.; Gong, Ping
通讯作者	Wang, XP (通讯作者)
发表日期	2018
ISSN	1680-7316
EISSN	1680-7324
起始页码	8745
结束页码	8755
卷号	18 期号:12
英文摘要	Due to their properties of bioaccumulation, toxicity, and long-range atmospheric transport, polyfluoroalkyl and perfluoroalkyl substances (PFASs) and cyclic volatile methylsiloxanes (cVMSs) are currently being considered as emerging persistent organic pollutants (POPs) for regulation. To date, there are limited data on PFASs and cVMSs in the atmosphere of the Tibetan Plateau (TP), a remote environment which can provide information on global background conditions. Sorbent-impregnated polyurethane foam (SIP) disc passive air samplers were therefore deployed for 3 months (May to July 2011 and 2013) at 16 locations across the TP. Using previously reported methods for estimating the air volume sampled by SIP discs, the derived atmospheric concentrations ranged as follows: 18-565 ng m(-3) for Sigma cVMS (including D3, D4, D5, and D6); 65-223 pg m(-3) for fluorotelomer alcohols (Sigma FTOHs); 1.2-12.8 pg m(-3) for fluorinated sulfonamides (Sigma FOSA); and 0.29-1.02 pg m(-3) for fluorinated sulfonamidoethanols (Sigma FOSE). The highest Sigma cVMS occurred at Lhasa, the capital city of the TP, indicating the local contribution to the emerging pollutants. Higher levels of Sigma FTOHs were observed at sites close to the transport channel of the Yarlung Tsangpo Grand Canyon, indicating possible long-range atmospheric transport (LRAT). Elevated concentrations of shorter-chain volatile PFAS precursors (4 : 2 FTOH and fluorobutane sulfonamidoethanol) were found in most air samples, reflecting the shift in production from long-to short-chain PFASs in Asia. Overall, concentrations of emerging POPs at background sites of the TP were 1-3 orders of magnitude higher than those reported for legacy POPs.
关键词	PERSISTENT ORGANIC POLLUTANTS POLYURETHANE FOAM DISK PASSIVE AIR SAMPLERS METHYL SILOXANES GAS-PHASE POLYFLUOROALKYL SUBSTANCES POLYCHLORINATED-BIPHENYLS ORGANOCHLORINE PESTICIDES PERFLUORINATED COMPOUNDS ULTRAVIOLET-RADIATION
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000435929400003
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
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/259237
推荐引用方式 GB/T 7714	Wang, Xiaoping,Schuster, Jasmin,Jones, Kevin C.,et al. Occurrence and spatial distribution of neutral perfluoroalkyl substances and cyclic volatile methylsiloxanes in the atmosphere of the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2018,18(12).
APA	Wang, Xiaoping,Schuster, Jasmin,Jones, Kevin C.,&Gong, Ping.(2018).Occurrence and spatial distribution of neutral perfluoroalkyl substances and cyclic volatile methylsiloxanes in the atmosphere of the Tibetan Plateau.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(12).
MLA	Wang, Xiaoping,et al."Occurrence and spatial distribution of neutral perfluoroalkyl substances and cyclic volatile methylsiloxanes in the atmosphere of the Tibetan Plateau".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.12(2018).