Determination of HCH and DDT in soils following Wenchuan 5.12 Violent Earthquake in China

作     者：CUI Weiwei ZHANG Qiangbin ZHU Xianlei WAN Yunyang ZHANG Zhihuan FAN Zhihua WANG Tieguan 

作者机构：College of Geosciences China University of Petroleum Beijing 102249 China State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China Department of Environmental and Occupational Medicine University of Medicine and Dentistry of NJ-Rutgers University Piscataway NJ 08854 USA 

出 版 物：《Chinese Journal Of Geochemistry》 (中国地球化学学报)

年 卷 期：2011年第30卷第1期

页      面：125-131页

核心收录：

学科分类：12[管理学] 1204[管理学-公共管理] 082803[工学-农业生物环境与能源工程] 0709[理学-地质学] 0819[工学-矿业工程] 070801[理学-固体地球物理学] 07[理学] 08[工学] 0828[工学-农业工程] 0708[理学-地球物理学] 120405[管理学-土地资源管理] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 40841026) 

主　　题：表层土壤 强烈地震 六六六 滴滴涕 汶川 卧龙自然保护区 六氯环己烷 中国 

摘      要：A large number of disinfectants and insecticides were used on a large scale after the Wenchuan 5.12 Violent Earthquake. The disinfectants and insecticides, including HCH (hexachlorocyclohexane) and DDT (dichlorodiphenyltrichoroethane) as representative OCPs, could lead to serious environmental problems. In order to disclose the residues of HCH and DDT in soils following the Wenchuan 5.12 Violent Earthquake, surface soils in Dujiangyan City and Beichuan County were sampled in 2009. The samples were analyzed by GC/MS after pre- treatment by ultrasonic solvent extraction. It has been found that the concentra-tions of γ-HCH, β-HCH and 4,4 -DDT in soils of Beichuan County were 94–102.4, 14.1–36.1 and 2.9–4.3 times high their concentrations in those of the Wolong Nature Reserve, and the concentrations in soils of Dujiangyan City were 52.4–61.6, 8.8 –45.3 and 5.4–6.2 times high their concentrations in soils of the Wolong Nature Reserve, respectively. According to the isomers of HCHs and metabolites of DDTs, it could be concluded that these areas may have additional inputs of lindane and 4,4 -DDT.