Persistent organochlorine residues in sediments of Haihe River and Dagu Drainage River in Tianjin, China

作     者：DING Hui LI Xin-gang LIU Hun WANG Jun SHEN Wei-ran SUN Yi-chao SHAO Xiao-long 

作者机构：School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China Tianjin Environmental Protection Bureau Tianjin 300191 China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2005年第17卷第5期

页      面：731-735页

核心收录：

学科分类：08[工学] 0815[工学-水利工程] 

基　　金：The Hi-Tech Research and Development Program(863) of China(No.2002AA648010) 

主　　题：Haihe River Dagu Drainage River sediment OCPs DDT HCH 

摘      要：Persistent organochlorine compounds were analyzed by means of GC-ECD in surface sediment samples from two selected rivers in Tianjin, Haihe River and Dagu Drainage River. A total of 16 surface sediment sites were selected along the both rivers. The frequency of detection of T-HCH and T-DDT in sediment samples both was up to 100%, which illustrated that the contamination of HCH and DDT was widespread in Haihe and Dagu Drainage Rivers. Results indicated that the concentrations of various pesticides in sediments from Haihe River were in the range of 3.30-75.96 ng/g dw for T-HCH and 1.57-211.57 ng/g dw for T-DDT. Compared with Haihe River, Dagu Drainage River was contaminated by HCHs and DDTs along the all locations and the values of T-HCH and T-DDT residues in sediments ranged from 2.30 to 124.61 ng/g dw and from 11.28 to 237.30 ng/g dw, respectively, The possible pollution sources were analyzed through monitoring results of organochlorine pesticides（OCPs） residues in sediments from the two rivers. The investigation also indicated that HCH was still used as pesticide in Tianjin partial area.