Abstract：ObjectiveTo investigate the pollution status of trihalomethanes (THMs) in tap water of Wuxi City and evaluate their cancerigenic risks to adults. MethodsThe source water, finished water and periphery water in Wuxi City were detected for THMs in 2008-2013, and their cancerigenic risks were evaluated using the method recommended by the US Enviromental Protection Agency (USEPA). ResultsThe concentrations of the THMs in the finished water and periphery water were significantly higher than those in the source water(P<0.05). The periphery water had higher concentrations of bromoform （CHBr3） chlorodibromomethane（CHBr2Cl） and bromodichloromethane(CHBrCl2）than the finished water(P<0.05). The THMs concentrations were statistically different among four water factories(P<0.05). The cancerigenic risks of THMs in the source water, finished water and periphery water were 1.46×10-6, 3.67×10-5 and 5.61×10-5, respectively. And CHBr2Cl and CHBrCl2 had higher risks. Conclusions The concentrations of the THMs in the tap water of Wuxi are lower than the limiting values formulated by GB5749-2006, but they have potential cancerigenic risks to adults.
周伟杰,陈晓峰,黄春华,丁新良. 无锡市自来水中三卤甲烷含量及其对成人的致癌风险[J]. 实用预防医学, 2015, 22(5): 550-552.
ZHOU Wei-jie, CHEN Xiao-feng, HUANG Chun-hua, DING Xin-liang. The concentrations of trihalomethanes in tap water of Wuxi City and their cancerigenic risks to adults. , 2015, 22(5): 550-552.
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