Organchlorinated pesticides in surface sediments of Meiliang Bay in Taihu Lake, China

被引：0
|
作者：
Huang, Shengbiao [1 ]
Qiao, Min [1 ]
Wang, Hai [1 ]
Wang, Zijian [1 ,2 ]
机构：
[1] State Key Laboratory of Environmental Aquatic Chemistry, Research Center for EcoEnvironmental Sciences, Chinese Academy of Sciences, Beijing, China
[2] State Key Laboratory of Environmental Aquatic Chemistry, P.O. Box 2871, Beijing 100085, China
来源：
Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering | 1600年 / 41卷 / 02期
关键词：
The concentration level of organochlorine pesticides (OCPs) in sediments from Taihu Lake; China was investigated to evaluate the potential ecological risk. A total of 48 surface sediment samples were collected in Taihu Lake. Meiliang Bay in Taihu Lake was selected due to its importance as a drinking water source for nearby cities. Results show that the concentrations of various pesticides in sediments were in the range of 0.1-107.3 ng/g for ΣHCH; 3.5-50.5 ng/g for endosulfan sulfate; 2.7-23.0 ng/g for endosulfan II and 0.3-59.3 ng/g for ΣDDT. Among the OCPs; HCHs and DDTs were the most dominant contamnants in the sediments. Cyclodiene compounds were also the main pesticides in Taihu lake besides HCH and DDT. Among the cyclodiene compounds; heptachlor and endosulfan sulfate prevailed in most of the sediments. Moreover; the frequencies of detection for the metabolites of PAHs were higher than those of parent compounds; depicting that the sediments have been contaminated historically. The results obtained in this study shown that there still exist a variety of OCPs residues in Taihu Lake and Meiliang Bay. Copyright © Taylor & Francis Group; LLC;
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页码：223 / 234
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