Occurrence and distribution of organochlorine pesticides and polycyclic aromatic hydrocarbons in surface sediments from Qinghai Lake, northeast Qinghai-Tibet plateau, China

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	Occurrence and distribution of organochlorine pesticides and polycyclic aromatic hydrocarbons in surface sediments from Qinghai Lake, northeast Qinghai-Tibet plateau, China
	Wu, Chenxi 1; Xiong, Xiong 1,2; Huang, Xiaolong 1,2; Xing, Xinli 3; Liu, Jiantong 1
刊名	JOURNAL OF GREAT LAKES RESEARCH
	2014-09-01
卷号	40 期号:3 页码:675-683
关键词	Organochlorine pesticides PAHs DDT DDE Atmospheric transport
ISSN号	0380-1330
英文摘要	Organochlorine pesticides (OCPs) and polycyclic aromiatic hydrocarbons (PAHs) were analyzed in surface sediment samples collected from Qinghai Lake, the largest lake in China, which is situated in the northeast Qinghai-Tibet plateau at an altitude of 3200 m. The concentrations of these pollutants ranged from 0.02 to 1.00 ng/g for hexachlorocyclohexanes (HCHs), from not detected to 0.86 ng/g for dichlorodiphenyltrichloroethanes (DDTs), from 0.26 to 1.73 ng/g for OCPs, and from 366 to 966 ng/g for PAHs. The predominance of alpha-HCH suggests that long-range atmospheric transport is an important source for HCHs. A low alpha- to gamma-HCH ratio (3.87 on average) indicates the possible usage of lindane in the drainage basin. The high percentage of p,p'-DDE and p,p'-DDD and the low percentage of o,p'-DDT indicated significant degradation from previous inputs, and no recent inputs of dicofol derived DDT. Based on the analysis of the component ratios, PAT-Is were found to be primarily from the combustion of biomass and coal-based fossil fuels. Using the Canadian sediment guidelines, PAHs are of greater ecological concern than OCPs in Qinghai Lake. (C) 2014 International Association for Great Lakes Research. Published by Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences ; Limnology ; Marine & Freshwater Biology
研究领域[WOS]	Environmental Sciences & Ecology ; Marine & Freshwater Biology
关键词[WOS]	PERSISTENT ORGANIC POLLUTANTS ; LONG-RANGE TRANSPORT ; PEARL RIVER DELTA ; MARINE FOOD-WEB ; POLYCHLORINATED-BIPHENYLS ; GLOBAL FRACTIONATION ; SOURCE DIAGNOSIS ; POLAR-REGIONS ; SOUTH CHINA ; TAIHU LAKE
收录类别	SCI
语种	英语
WOS记录号	WOS:000342034500023
公开日期	2015-01-20
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/20361]
专题	水生生物研究所_水环境工程研究中心_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Wu, Chenxi,Xiong, Xiong,Huang, Xiaolong,et al. Occurrence and distribution of organochlorine pesticides and polycyclic aromatic hydrocarbons in surface sediments from Qinghai Lake, northeast Qinghai-Tibet plateau, China[J]. JOURNAL OF GREAT LAKES RESEARCH,2014,40(3):675-683.
APA	Wu, Chenxi,Xiong, Xiong,Huang, Xiaolong,Xing, Xinli,&Liu, Jiantong.(2014).Occurrence and distribution of organochlorine pesticides and polycyclic aromatic hydrocarbons in surface sediments from Qinghai Lake, northeast Qinghai-Tibet plateau, China.JOURNAL OF GREAT LAKES RESEARCH,40(3),675-683.
MLA	Wu, Chenxi,et al."Occurrence and distribution of organochlorine pesticides and polycyclic aromatic hydrocarbons in surface sediments from Qinghai Lake, northeast Qinghai-Tibet plateau, China".JOURNAL OF GREAT LAKES RESEARCH 40.3(2014):675-683.