Levels and Chiral Signatures of Organochlorine Pesticides in Urban Soils of Yinchuan, China

被引：0
作者：
Wei Wang
Xing-Hong Li
Xiao-Fei Wang
Xi-Zhi Wang
Hai Lu
Xiang-Ning Jiang
Xiao-Bai Xu
机构：
[1] Research Center of Eco-Environment Sciences,State Key Laboratory of Environmental Chemistry and Ecotoxicology
[2] The Chinese Academy of Sciences,undefined
[3] Beijing Forestry University,undefined
来源：
Bulletin of Environmental Contamination and Toxicology | 2009年 / 82卷
关键词：
Survey; Enantiomeric composition; HCHs; DDTs;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, residual level and enantiomeric composition of typical organochlorine pesticides (OCPs) were surveyed in urban soils of Yinchuan, China. The median levels of ∑HCHs and ∑DDTs were 0.852 and 2.24 ng/g, respectively, which suggested little risk for ecological environment and human health in the study area. Both chiral α-HCH and o,p′-DDT displayed the non-racemic signatures in all samples. The isomer ratios of ∑HCHs and ∑DDTs combined with enantiomer fractions (EFs) of α-HCH and o,p′-DDT, suggested that contamination source of HCHs derived from historical HCHs (including technical HCHs and Lindane) and that of DDTs originated from old source with the usage of mixed technical DDTs and dicofol.
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页码：505 / 509
页数：4
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