The study of organochlorine pesticides and polychlorinated biphenyls in surface water around Beijing
SHAO Yang1,2, YANG Guo-sheng1,2, LIU Wei-hua3, MA Ling-ling1,2, LUO Min1,2, HAN Shen3, XU Dian-dou1,2
1. Division of Nuclear Technology and Applications, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
2. Beijing Engineering Research Center of Radiographic Techniques and Equipment, Beijing 100049, China;
3. Beijing Entry-Exit Inspection and Quarantine Bureau Technology Centre, Beijing 100026, China
The concentrations and sources of 17organochlorine pesticides (OCPs) and 84polychlorinated biphenyls (PCBs) were analyzed in the surface water of Miyun, Chaobai River, Yuyuan Lake and Tonghui River in Beijing during summer and winter. The concentrations of 17OCPs were in the range of 7.86~53.1ng/L, with an average of (16.9±14.6) ng/L. The concentrations of 84PCBs were in the range of 2.99~32.7ng/L, with an average of (10.9±10.4) ng/L. The major compositions of OCPs were HCHs, endosulfan, DDTs and HCB with the concentrations of (13.9±11.5) ng/L, (2.20±2.01) ng/L, (0.63±1.51) ng/L and (0.12±0.14) ng/L, respectively. The average ratio of α-HCH/γ-HCH was 1.53 indicating the application of lindane in Beijing. In the meanwhile, the ratio of DDT/(DDD+DDE) was <1.22 which lower than 4~7 in technical HCHs, suggesting historical inputs of DDTs into the environment in the study area. The concentrations of different homologues of PCBs were dominated by Di-CBs, Tri-CBs, Tetra-CBs and Penta-CBs, accounting for 79.2% of ∑84PCBs. The domination by lower chlorinated CBs was similar to the historical products of China, indicating the residual of PCBs in surface water in Beijing resulting from historical usage. Comparing to the surface water in other areas in China, the contamination levels of OCPs and PCBs in surface water in Beijing were relatively low.
邵阳, 杨国胜, 刘韦华, 马玲玲, 罗敏, 韩深, 徐殿斗. 北京地区地表水中OCPs和PCBs的污染分析[J]. 中国环境科学, 2016, 36(9): 2606-2613.
SHAO Yang, YANG Guo-sheng, LIU Wei-hua, MA Ling-ling, LUO Min, HAN Shen, XU Dian-dou. The study of organochlorine pesticides and polychlorinated biphenyls in surface water around Beijing. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(9): 2606-2613.
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