Distribution and health risk assessment of organochlorine pesticides(OCPs) in industrial site soils:A case study of urban renewal in Beijing,China

查看全文 作　　者：YANG Wenrui,WANG Rusong,ZHOU Chuanbin,LI FengState key laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China.

出　　处：《Journal of Environmental Sciences》索引2009年第21卷第3期,共7页

基　　金：supported by the National Natural Sci-ence Foundation of China (No. 70433001);the Knowledge Innovation Project of the Chinese Academy of Sciences(No. KZCX2-YW-422, 324) 摘　　要：A field survey was conducted in a contaminated industrial site of southern Beijing,China to investigate the contents and distribution of the organochlorine pesticides(α-,β-,γ-,δ-HCH,p,p-DDT,p,p-DDE,p,p-DDD and o,p-DDT) in the profiles of soil,and a health risk assessment was carried out with CalTOX multimedia exposure model.Results showed that mean concentrations of total hexachlorocyclohexane isomers(HCHs) and total dichlorodiphenyltrichloroethane isomers(DDXs) in soils were in the range of 13.20-148.71 mg/kg,and 3.02-67.43 mg/kg,respectively.Organochlorine pesticides(OCPs) content peaked in the surface and declined in soil profile with depth.The amounts of HCHs in three profiles of soil were larger than DDXs.Composition analysis indicated that there was a trend of degradation of OCPs in the site,but the mean of HCHs and DDXs concentration were over the state warning standard limit(HCHs,0.50 mg/kg;DDXs,0.50 mg/kg).According to current land use development,health risk assessment with CalTOX and Monte Carlo analysis showed that health risks mainly came from two exposure pathways:dermal uptake and inhalation,and the total risk values all exceeded the general acceptable health risk value(10-6).The sensitivity analysis indicated that five parameters significantly contributed to total risk. 关键词：健康风险评估有机氯农药土壤剖面 OCPS 工业用地北京市六氯环己烷市区

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Distribution and health risk assessment of organochlorine pesticides(OCPs) in industrial site soils:A case study of urban renewal in Beijing,China

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