Occurrence, source, and ecological risk assessment of organochlorine pesticides and polychlorinated biphenyls in the water-sediment system of Hangzhou Bay and East China Sea

被引：36

作者：

Wang, Xiaoni ^{[1
]}

Zhang, Zeming ^{[1
]}

Zhang, Rongrong ^{[1
]}

Huang, Wei ^{[4
,5
]}

Dou, Wenke ^{[1
]}

You, Jinjie ^{[1
]}

Jiao, Haifeng ^{[2
]}

Sun, Aili ^{[1
]}

Chen, Jiong ^{[1
]}

Shi, Xizhi ^{[1
,5
]}

Zheng, Dan ^{[3
]}

机构：

[1] Ningbo Univ, Sch Marine Sci, State Key Lab Managing Biot & Chem Threats Qual &, Ningbo 315211, Peoples R China

[2] Zhejiang Wanli Univ, Coll Biol & Environm Sci, Ningbo 315100, Peoples R China

[3] Ningbo Acad Oceanol & Fisheries, Ningbo 315042, Peoples R China

[4] Minist Nat Resources, Key Lab Marine Ecosyst Dynam, Hangzhou 310012, Peoples R China

[5] Ningbo Univ, Sch Marine Sci, 818 Fenghua Rd, Ningbo 315211, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2022年 / 179卷

关键词：

Organochlorine pesticide; Polychlorinated biphenyl; Spatiotemporal variation; Risk assessment; POLYBROMINATED DIPHENYL ETHERS; PERSISTENT ORGANIC POLLUTANTS; YANGTZE-RIVER ESTUARY; SURFACE-WATER; MARGINAL FILTER; PCBS; PBDES; OCPS; LAKE; DISTRIBUTIONS;

D O I：

10.1016/j.marpolbul.2022.113735

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The pollution characteristics, potential sources, and potential ecological risk of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were investigated in the Hangzhou Bay (HZB) and East China Sea (ECS). Total OCPs concentration ranged from 2.62 to 102.07 ng/L and 4.41 to 75.79 mu g/kg in the seawater and sediment samples, with PCBs concentration in the range of 0.40-51.75 ng/L and 0.80-45.54 mu g/kg, respectively. The OCPs were positively correlated with nutrients, whereas PCBs presented a negative correlation. The newly imported dichlorodiphenyltrichloroethane (DDT) in HZB is mainly the mixing of technical DDT and dicofol sources. The PCB source composition is more likely related to the mixture of Kanechlor 300, 400, Aroclor 1016, 1242, and Aroclor 1248. Risk assessment results indicate that OCPs posed low risk in seawater. The potential risk of DDTs in the sediments is a cause of concern.

引用

页数：11