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杭嘉湖地区饮用水源半挥发性有机物污染现状

     

摘要

采用固相萃取-GC-MS法对杭嘉湖地区16个集中式饮用水源水体中的氯代苯、多环芳烃、硝基苯、多氯联苯、邻苯二甲酸酯等43种半挥发性有机物(SVOCs)进行了分析检测。结果表明,16个集中式饮用水源水共检出10余种有机污染物,浓度范围为0.01~4.26μg/L,检出率为5%~100%;邻苯二甲酸二甲酯、邻苯二甲酸二乙酯、邻苯二甲酸二丁酯、邻苯二甲酸双(2-二乙基己酯)、2,6-二硝基甲苯等化合物的检出率为超过50%;在平水期、丰水期、枯水期,被检出的有机污染物种类分别为12,9,14种,被检出污染物的浓度范围分别为0.05~4.26,0.01~0.20,0.01~1.00μg/L。%Water samples were collected from 16 drinking water sources of Hangjiahu area, and concentrated by solid-phase extraction and then GC-MS was used to analyze the concentration of Chlorinated benzene, polycyclic aromatic hydrocarbons (PAHs), nitrobenzene, polychlorinated biphenyl (PCBs) and Phthalic acid ester, etc. The results showed that a total of 10 kinds of Semi-volatile organic compounds (SVOCs) were discemable in the range of 0.01 ~ 4.26μg/L, with the detection rate of 5%- 100%. The detection rate of dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), di (2- ethylhexyl) phthalate (DEHP), 2, 6-two nitro toluene more thanSO%. In mean, high and low water seasons, the kind of determined compounds is 12, 9 and 14, with the concentration range of 0.05 -4.26 μg/L, 0.01 -0.2μg/L and 0.01 - 1.0 μg/L.

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