Historical trends of organochlorine pesticides (OCPs) recorded in sediments across the Tibetan Plateau

doi:10.1007/s10653-017-9908-7

	Historical trends of organochlorine pesticides (OCPs) recorded in sediments across the Tibetan Plateau
	Yang, RQ (Yang, Ruiqiang)1; Xie, T (Xie, Ting)1; Yang, HD (Yang, Handong)2; Turner, S (Turner, Simon)2; Wu, GJ (Wu, Guangjian)3
刊名	ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
	2018-02-01
卷号	40 期号:1 页码:303-312
关键词	PERSISTENT ORGANIC POLLUTANTS POLYCYCLIC AROMATIC-HYDROCARBONS LAKE-SEDIMENTS MOUNTAIN LAKES CENTRAL-HIMALAYAS TOXIC-SUBSTANCES CONIFER NEEDLES DDT POLLUTION MT. EVEREST REMOTE LAKE
ISSN号	0269-4042
DOI	10.1007/s10653-017-9908-7
英文摘要	Sediment cores from four lakes across the Tibetan Plateau were used as natural archives to study the time trends of organochlorine pesticides (OCPs). The total concentrations of dichlorodiphenyltrichloroethane (I DDT) pound and hexachlorocyclohexane isomers (I HCH) pound were in the range of 0.04-1.61 and 0.08-1.88 ng/g based on dry weight (dw), while the input fluxes were in the range of 0.3-236 and 0.7-295 pg/cm(2)/y in the core sediments, respectively. The input fluxes of I DDT pound and I HCH pound generally peaked in sediment layers corresponding to the 1970s-1990s and peaked in top sediment layers. The ratio of alpha/gamma-HCH decreased in the top layer sediments, implying that the contribution of lindane (pure gamma-HCH) has been increasing in recent years. In addition, the ratio of o,p'-DDT/p,p'-DDT increased significantly over the last 15-20 years, suggesting that dicofol (characterized by high ratio of o,p'-DDT/p,p'-DDT about 7.0) has recently become a relatively more important source of DDT compared to technical DDT itself. The time trends of OCPs recorded in lake sediments examined the impact on such remote alpine regions by human activities.
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000424199900019
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/8746]
专题	青藏高原研究所_图书馆
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China; 2.UCL, Environm Change Res Ctr, Pearson Bldg,Gower St, London WC1E 6BT, England; 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China.
推荐引用方式 GB/T 7714	Yang, RQ ,Xie, T ,Yang, HD ,et al. Historical trends of organochlorine pesticides (OCPs) recorded in sediments across the Tibetan Plateau[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2018,40(1):303-312.
APA	Yang, RQ ,Xie, T ,Yang, HD ,Turner, S ,&Wu, GJ .(2018).Historical trends of organochlorine pesticides (OCPs) recorded in sediments across the Tibetan Plateau.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,40(1),303-312.
MLA	Yang, RQ ,et al."Historical trends of organochlorine pesticides (OCPs) recorded in sediments across the Tibetan Plateau".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 40.1(2018):303-312.