Concentrations and compositions of organochlorine contaminants in sediments, soils, crustaceans, fishes and birds collected from Lake Tai, Hangzhou Bay and Shanghai city region, China
Concentrations and compositions of organochlorine contaminants in sediments, soils, crustaceans, fishes and birds collected from Lake Tai, Hangzhou Bay and Shanghai city region, China
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DOI：
10.1016/j.envpol.2004.07.003
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发表时间：
2005-02-01
影响因子：
8.9
通讯作者：
Ding, XC
中科院分区：
文献类型：
--
作者：
Nakata, H;Hirakawa, Y;Ding, XC
2000 ~ 2001年，对太湖、杭州湾和上海周边海域的沉积物、土壤、鱼类、甲壳类、鸟类和水产养殖饲料中DDTs、六氯环己烷异构体（HCHs）、氯代烃化合物（CHLs）、六氯苯（HCB）和多氯联苯（PCBs）等持久性有机氯（OCs）的污染状况进行了研究。在所有分析的样品中都检测到有机氯化合物，滴滴涕及其代谢物是大多数沉积物、土壤和生物群中的主要污染物。海水鱼体内p，p '-DDT浓度和p，p'-DDT/SigmaDDTs比值均显著高于淡水鱼。虽然中国自1983年起正式禁止使用滴滴涕，但这些结果表明，最近技术滴滴涕进入杭州湾周围的海洋环境。对从太湖和杭州湾采集的鱼类中有机氯浓度的比较表明，太湖中存在HCHs、氯烷和PCB的本地来源。太湖鱼类中五氯联苯和六氯联苯同系物的比例较高，这可能表明太湖周围使用了高氯化的多氯联苯产品，如多氯联苯5。据我们所知，这是第一个全面的研究，以审查目前的状况，在中国的各种环境介质，如沉积物，土壤和野生动物，有机氯污染。(C)2004爱思唯尔有限公司保留所有权利。
Contamination by persistent organochlorines (OCs), such as DDTs, hexachlorocyclohexane isomers (HCHs), chlordane compounds (CHLs), hexachlorobenzene (HCB) and polychlorinated biphenyls (PCBs) were examined in sediments, soils, fishes, crustaceans, birds, and aquaculture feed from Lake Tai, Hangzhou Bay, and in the vicinity of Shanghai city in China during 2000 and 2001. OCs were detected in all samples analyzed, and DDT and its metabolites were the predominant contaminants in most sediments, soils and biota. Concentrations of p,p'-DDT and ratio of p,p'-DDT to SigmaDDTs were significantly higher in marine fishes than those in freshwater fishes. While the use of DDTs has been officially banned in China since 1983, these results indicate a recent input of technical DDTs into the marine environment around Hangzhou Bay. Comparison of organochlorine concentrations in fishes collected from Lake Tai and Hangzhou Bay suggests the presence of local sources of HCHs, chlordanes and PCBs at Lake Tai. Higher proportions of penta- and hexa-PCB congeners in fishes at Lake Tai may suggest the use of highly chlorinated PCB product, such as PCB5, around this lake. To our knowledge, this is a first comprehensive study to examine the present status of organochlorine contamination in various environmental media, such as sediments, soils and wildlife, in China. (C) 2004 Elsevier Ltd. All rights reserved.