Characterization, ecological and health risks of DDTs and HCHs in water from a large shallow Chinese lake

被引：52

作者：

He, Wei ^{[1
]}

Qin, Ning ^{[1
]}

He, Qi-Shuang ^{[1
]}

Wang, Yan ^{[1
]}

Kong, Xiang-Zhen ^{[1
]}

Xu, Fu-Liu ^{[1
]}

机构：

[1] Peking Univ, Minist Educ, Lab Earth Surface Proc, Coll Urban & Environm Sci, Beijing 100871, Peoples R China

来源：

ECOLOGICAL INFORMATICS | 2012年 / 12卷

基金：

美国国家科学基金会;

关键词：

DDTs; HCHs; Ecological risk; Health risk; Source identification; Lake Chaohu; ORGANOCHLORINE PESTICIDES; SURFACE SEDIMENTS; CHAOHU LAKE; DICHLORODIPHENYLTRICHLOROETHANE DDT; AGRICULTURAL SOIL; MEDITERRANEAN SEA; ECOSYSTEM HEALTH; TAIHU LAKE; RIVER; CONTAMINATION;

D O I：

10.1016/j.ecoinf.2012.05.008

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

The levels of dichloro diphenyl trichloroethanes (DDTs) and hexachlorocyolohexanes (HCHs) in water from Lake Chaohu were measured. The residues, possible sources and potential ecological and health risks of these compounds were analyzed. The results show that the contents of total DDTs and HCHs in the water varied from 1.52 to 21.79 and from 1.58 to 31.66 ng L-1, respectively, which were higher than those in other Chinese lakes. The main sources of HCHs and DDTs were lindane and technical DDT, respectively. The o,p'-DDT/p, p'-DDT ratios indicated the new illegal inputs of DDT in all studied inflow rivers and some lake areas. The MOS10 (margin of safety) values suggested that the Lake was facing a potential ecological risks from p,p'-DDT, whereas the risk of gamma-HCH was small. Both carcinogenic and noncarcinogenic risks of DDTs and HCHs associated with the water use were very low. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：77 / 84

页数：8

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