气候变化领域集成服务门户(CCPortal): Distribution; sources and ecological risks of organochlorine compounds (DDTs; HCHs and PCBs) in surface sediments from the Pearl River Estuary; China

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DOI	10.1016/j.marpolbul.2020.110942
	Distribution; sources and ecological risks of organochlorine compounds (DDTs; HCHs and PCBs) in surface sediments from the Pearl River Estuary; China
	Tang D.; Liu X.; He H.; Cui Z.; Gan H.; Xia Z.
发表日期	2020
ISSN	0025326X
卷号	152
英文摘要	The Pearl River Estuary is an important sink of organochlorine compounds (OCs), and OC pollution levels in surface sediments remain largely unknown at present. We collected and analysed residual DDTs, HCHs and PCBs of 45 surface sediments from the Pearl River Estuary in 2017. The values of DDTs (1.83 to 6.98 ng·g−1) and HCHs (0.43 to 2.14 ng·g−1) were higher in the Humen outlet, and the values of PCBs (4.6 to 187.4 ng·g−1) were higher in the coastal areas of Shenzhen. The DDTs and HCHs have generally decreased while the PCBs have been rapidly increasing in recent decades. The DDTs might originate from technical DDT and dicofol. The major source of HCHs was lindane. The main potential sources of PCBs were increased industrial products, ship painting, E-waste disassembly, maricultural and agricultural pollution. The total PCBs and DDTs had medium ecological risks according to the sediment quality guidelines. © 2020
英文关键词	Distribution; Ecological risk assessment; Organochlorine compounds (DDTs, HCHs and PCBs); Pearl River Estuary; Potential source apportionment; Surface sediments
语种	英语
scopus关键词	Chlorine compounds; Electronic Waste; Estuaries; Gems; Organic pollutants; Polychlorinated biphenyls; Risk assessment; Rivers; Surficial sediments; Distribution; Ecological risk assessment; Organochlorine compounds; Pearl River estuary; Potential sources; Surface sediments; River pollution; chlorphenotane; hexachlorocyclohexane; polychlorinated biphenyl derivative; chlorinated hydrocarbon; chlorphenotane; polychlorinated biphenyl; DDT; environmental risk; HCH; PCB; risk assessment; source apportionment; spatial distribution; surficial sediment; Article; China; concentration (parameter); controlled study; e-waste; ecological procedures; ecological risk; estuary; freeze drying; geographic distribution; limit of quantitation; multiple reaction monitoring; population growth; quantitative analysis; risk assessment; sediment; Soxhlet extraction; surface sediment; environmental monitoring; estuary; river; sediment; water pollutant; China; Guangdong; Zhujiang Estuary; China; DDT; Environmental Monitoring; Estuaries; Geologic Sediments; Hydrocarbons, Chlorinated; Polychlorinated Biphenyls; Rivers; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149172
作者单位	Guangzhou Marine Geological Survey, Guangzhou, 510075, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 511458, China; CAS Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, (ISEE, CAS), Guangzhou, 510301, China
推荐引用方式 GB/T 7714	Tang D.,Liu X.,He H.,et al. Distribution; sources and ecological risks of organochlorine compounds (DDTs; HCHs and PCBs) in surface sediments from the Pearl River Estuary; China[J],2020,152.
APA	Tang D.,Liu X.,He H.,Cui Z.,Gan H.,&Xia Z..(2020).Distribution; sources and ecological risks of organochlorine compounds (DDTs; HCHs and PCBs) in surface sediments from the Pearl River Estuary; China.Marine Pollution Bulletin,152.
MLA	Tang D.,et al."Distribution; sources and ecological risks of organochlorine compounds (DDTs; HCHs and PCBs) in surface sediments from the Pearl River Estuary; China".Marine Pollution Bulletin 152(2020).