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Sedimentary records of polychlorinated biphenyls in the East China Marginal Seas and Great Lakes: Significance of recent rise of emissions in China and environmental implications
Zilan Wu;  Tian Lin;  An Li;  Shanshan Zhou;  Huan He;  Jiehong Guo;  Limin Hu;  Yuanyuan Li;  Zhigang Guo
2019
Source PublicationEnvironmental Pollution
Volume254Issue:Part APages:1-8
Abstract

Polychlorinated biphenyls (PCBs) in dated sediment cores from the East China Marginal Seas (ECMSs) and the chronology of the net fluxes to sediments were analyzed. The accumulation of 27 PCBs (ΣPCBs) in the ECMS sediments is about 5–26 ng cm−2, with the net depositional fluxes of ΣPCBs 10 times lower than those observed in the Great Lakes during the 1960s–1970s. Exponential increases in PCB deposition to the ECMS sediments since the 1990s were observed, which closely follows the fast growth of PCB emissions from industrial thermal processes and e-waste related sources in China. Recent PCB fluxes to the study sites in the ECMSs and the Great Lakes are comparable; the former surged forward with a rising tendency, while the latter showed continued decline after the late 1970s. Due to the different PCB application histories and sources between the two regions, the ECMS sediments may remain as a net sink for land-derived PCBs, while sediments in the Great Lake may have been acting as a secondary source releasing PCBs to water. A higher proportion of trichlorobiphenyls in the ECMS sediments than the Great Lakes was indicated, which may imply the net transport of atmospheric PCBs from China.

KeywordPcbs sedimentary Records ecmss great Lakes
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10165
Collection环境地球化学国家重点实验室
Affiliation1.Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
3.School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, United States
4.College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
5.School of Environment, Nanjing Normal University, Nanjing 210023, China
6.Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
Recommended Citation
GB/T 7714
Zilan Wu;Tian Lin;An Li;Shanshan Zhou;Huan He;Jiehong Guo;Limin Hu;Yuanyuan Li;Zhigang Guo. Sedimentary records of polychlorinated biphenyls in the East China Marginal Seas and Great Lakes: Significance of recent rise of emissions in China and environmental implications[J]. Environmental Pollution,2019,254(Part A):1-8.
APA Zilan Wu;Tian Lin;An Li;Shanshan Zhou;Huan He;Jiehong Guo;Limin Hu;Yuanyuan Li;Zhigang Guo.(2019).Sedimentary records of polychlorinated biphenyls in the East China Marginal Seas and Great Lakes: Significance of recent rise of emissions in China and environmental implications.Environmental Pollution,254(Part A),1-8.
MLA Zilan Wu;Tian Lin;An Li;Shanshan Zhou;Huan He;Jiehong Guo;Limin Hu;Yuanyuan Li;Zhigang Guo."Sedimentary records of polychlorinated biphenyls in the East China Marginal Seas and Great Lakes: Significance of recent rise of emissions in China and environmental implications".Environmental Pollution 254.Part A(2019):1-8.
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