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DOI	10.1016/j.atmosenv.2008.04.035
	The historical residue trends of DDT, hexachlorocyclohexanes and polycyclic aromatic hydrocarbons in an ice core from Mt. Everest, central Himalayas, China
	Wang, Xiao ping; Xu, Bai qing; Kang, Shi chang; Cong, Zhi yuan; Yao, Tan dong
发表日期	2008
ISSN	1352-2310
EISSN	1873-2844
起始页码	6699
结束页码	6709
卷号	42 期号:27
英文摘要	High mountains may serve as cold traps for persistent organic Pollutants (POPs) and ice cores can provide long-term records of atmospheric deposition Of pollutants. In this study, DDT, hexachlorocyclohexanes (HCHs) and polycyclic aromatic hydrocarbons (PAHs) in an ice core from East Rongbuk Glacier were analyzed and the deposition fluxes of these pollutants were investigated. Concentrations of total DD'rs reached maxima of approximately 2 ng l(-1) in mid-1970s, which is corresponding to the peak of malaria cases in India (in 1976). The decrease of DDT concentration after 1990s was in-line with the ban of DDT in India (in 1989). High level of alpha-HCH was observed in early 1970s and it showed a decrease to undetectable level at the end of 1990s, which is in agreement with the period when India banned the usage of HCH (in 1997). Concentrations of total PAHS sharply increased after 1990 and the peak (approximately 100 ng l(-1)) Was found at the end of 1990s, when India entered the rapid industrialization (urbanization). PAHs in the ice core are dominantly pyrogenic in source, and are mainly from incomplete combustion Of Coal and biomass burning. Good correlations among concentrations of PAHs, nssSO(4)(2-) and microparticles in snow pit samples showed that the origin of the PAHs and nssSO(4)(2-) is often the same and they may be absorbed by particles and transported to high Mountain regions by atmospheric circulation. (C) 2008 Elsevier Ltd. All rights reserved.
关键词	PERSISTENT ORGANIC POLLUTANTS ORGANOCHLORINE PESTICIDES POLYCHLORINATED-BIPHENYLS ATMOSPHERIC CIRCULATION ELEMENTAL COMPOSITION TIBETAN PLATEAU DEPOSITION QOMOLANGMA TRANSPORT SNOW
英文关键词	Ice core; Historical trend; DDT; HCH; PAHs; Mt. Everest
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:000259931400015
来源期刊	ATMOSPHERIC ENVIRONMENT
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/257528
推荐引用方式 GB/T 7714	Wang, Xiao ping,Xu, Bai qing,Kang, Shi chang,et al. The historical residue trends of DDT, hexachlorocyclohexanes and polycyclic aromatic hydrocarbons in an ice core from Mt. Everest, central Himalayas, China[J]. 中国科学院青藏高原研究所,2008,42(27).
APA	Wang, Xiao ping,Xu, Bai qing,Kang, Shi chang,Cong, Zhi yuan,&Yao, Tan dong.(2008).The historical residue trends of DDT, hexachlorocyclohexanes and polycyclic aromatic hydrocarbons in an ice core from Mt. Everest, central Himalayas, China.ATMOSPHERIC ENVIRONMENT,42(27).
MLA	Wang, Xiao ping,et al."The historical residue trends of DDT, hexachlorocyclohexanes and polycyclic aromatic hydrocarbons in an ice core from Mt. Everest, central Himalayas, China".ATMOSPHERIC ENVIRONMENT 42.27(2008).