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DOI	10.1016/j.marpolbul.2020.111710
	Distribution characteristics and environmental fate of PCBs in marine sediments at different latitudinal regions: Insights from congener profiles
	Deng Z.; Li X.; Chen C.; Zhang N.; Zhou H.; Wang H.; Han X.; Zhang C.
发表日期	2020
ISSN	0025326X
卷号	161
英文摘要	Sediments were sampled from Hangzhou Bay (HB), the South China Sea (SCS), and Antarctica (AZ) to better understand the distribution characteristics and environmental fate of polychlorinated biphenyls (PCBs) at different latitudes. Numerous PCB congeners (68) were detected among the sampling sites, supporting the ubiquity of PCB congeners. High and low chlorinated congeners dominated the PCB profiles of AZ and SCS, respectively, whereas the PCB homologues were evenly distributed in the HB. As a fraction of low chlorinated PCBs originates from an exogenous input, the low mean ratios of ∑Tetra-CBs to ∑PCBs and ∑Tetra-CBs to the sum of ∑Tri- and ∑Di-CBs suggest that microbial transformation of PCBs is weak in marine surface sediments, if any occurs at all. Furthermore, PCB contamination levels in marine sediments may be primarily influenced by latitude rather than pollution sources. Thus, the findings of this study suggest that Antarctica is becoming a prospective hotspot for PCBs. © 2020 Elsevier Ltd
英文关键词	Antarctica; Hangzhou Bay; Marine sediment; Polychlorinated biphenyls; South China Sea
语种	英语
scopus关键词	Electric circuit breakers; Marine pollution; Polychlorinated biphenyls; Sediments; Submarine geology; Chlorinated congeners; Congener profiles; Distribution characteristics; Environmental fate; Microbial transformation; PCB contamination; Pollution sources; Polychlorinated biphenyl (PCBs); Organic pollutants; polychlorinated biphenyl; concentration (composition); latitudinal gradient; marine pollution; marine sediment; PCB; source apportionment; Antarctica; Article; bioaccumulation; chlorination; chromatography; concentration (parameter); controlled study; decontamination; dry weight; environmental impact; geographic distribution; geographic names; Hangzhou Bay; latitude; limit of quantitation; marine environment; microbial transformation; microbiological phenomena and functions; sampling; sediment; South China Sea; total organic carbon; water contamination; China; Hangzhou Bay; Pacific Ocean; South China Sea; Zhejiang
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/148488
作者单位	Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, Zhoushan, Zhejiang 316021, China; Zhoushan City Center for Disease Control and Prevention, Zhoushan, Zhejiang 316021, China; Key Laboratory of Submarine Geosciences & Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, Zhejiang 310012, China; The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin, Guangxi 541006, China
推荐引用方式 GB/T 7714	Deng Z.,Li X.,Chen C.,et al. Distribution characteristics and environmental fate of PCBs in marine sediments at different latitudinal regions: Insights from congener profiles[J],2020,161.
APA	Deng Z..,Li X..,Chen C..,Zhang N..,Zhou H..,...&Zhang C..(2020).Distribution characteristics and environmental fate of PCBs in marine sediments at different latitudinal regions: Insights from congener profiles.Marine Pollution Bulletin,161.
MLA	Deng Z.,et al."Distribution characteristics and environmental fate of PCBs in marine sediments at different latitudinal regions: Insights from congener profiles".Marine Pollution Bulletin 161(2020).