Organochlorine pesticide content and distribution in coastal seafoods in Zhoushan, Zhejiang Province.
Thirteen types of seafoods were collected from four counties (districts) of Zhoushan, Zhejiang Province, China and analyzed for organochlorine pesticides (OCPs). The average concentrations of OCPs in seafoods ranged from 258.3 ng g⁻¹ (lw) to 3459.6 ng g⁻¹ (lw). Hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) were the most abundant compounds in these environments and in total accounted for 8.2-62.2% and 32.1-89.0% of the total OCPs in seafoods, respectively. The total OCP contents were higher in seafoods from Shengsi and Putuo and lower in those from Dinghai and Daishan. The ratios of (DDE+DDD)/DDTs reflected a mixed input of accumulated and fresh DDTs in Shengsi, Putuo. The ratios of o,p'-DDT/p,p'-DDT in seafoods of Shengsi ranged 0.10-0.60 (mean 0.33), indicating that DDTs in seafoods of Shengsi may partly contain dicofol products and other pollutants accumulated in Yangtze Estuary. DDTs are a greater concern for ecotoxicological risk in the study area.
Marine Biotechnology Laboratory, Zhejiang Provincial Zhoushan Marine Ecological Environmental Monitoring Station, Zhoushan 316021, China; Physical and Chemical Laboratory, Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan 316021, China.
Jie-Yu
JY
Wang
Marine Biotechnology Laboratory, Zhejiang Provincial Zhoushan Marine Ecological Environmental Monitoring Station, Zhoushan 316021, China; Physical and Chemical Laboratory, Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan 316021, China. Electronic address: Xwyu0716@163.com.
Xin-Wei
XW
Yu
Physical and Chemical Laboratory, Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan 316021, China.
Li
L
Fang
D000818:Animals; D002681:China; D004781:Environmental Exposure / Q000032:analysis* / Q000706:statistics & numerical data; D004784:Environmental Monitoring; D005506:Food Contamination / Q000032:analysis* / Q000706:statistics & numerical data; D006801:Humans; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D010575:Pesticides / Q000032:analysis*; D017747:Seafood / Q000032:analysis* / Q000706:statistics & numerical data; D014874:Water Pollutants, Chemical / Q000032:analysis*
D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D014874:Water Pollutants, Chemical
China; Organochlorine pesticides; Regional distribution; Seafoods; Zhoushan