[目的]评价唐山市生活饮用水中三氯甲烷、一溴二氯甲烷等8种挥发性卤代烃类物质的含量。[方法]采集唐山市自来水公司管网末梢水和高层建筑二次供水管网末梢水水样,采用顶空气相色谱法检测水样中三氯甲烷、一溴二氯甲烷、二溴一氯甲烷、三溴甲烷、三氯乙烯、四氯乙烯、1,1,1-三氯乙烷、1,1,2-三氯乙烷8种挥发性卤代烃类物质的含量,以保留时间进行定性,外标法进行定量分析。[结果]三氯甲烷、一溴二氯甲烷、二溴一氯甲烷和三溴甲烷4种卤代烃的检出率均为100.0%,部分水样检出四氯乙烯和三氯乙烯,所有水样均未检出1,1,1-三氯乙烷和1,1,2-三氯乙烷。除1份市政直供水水样三氯甲烷超出限值外,其余各指标均符合《生活饮用水卫生标准》(GB5749-2006)的要求。4座自来水的管网末梢水中三氯甲烷、一溴二氯甲烷、二溴一氯甲烷和三溴甲烷的含量差异有统计学意义(P﹤0.05)。[结论]唐山市生活饮用水中挥发性卤代烃以三卤甲烷为主,基本符合卫生标准。以地面水、地下水和地面水混合水为水源水的管网末梢水三卤甲烷含量较以地下水为水源的高。 [Objective] To evaluate the content of 8 kinds of volatile halogenated hydrocarbons such as chloroform and bromodichloromethane in drinking water of Tangshan city. [Method] The water samples were collected from the pipe network of Tangshan Water Supply Company and the secondary water supply network of high-rise buildings. The contents of chloroform, bromodichloromethane and dibromochloromethane were measured by headspace gas chromatography , Tribromomethane, trichlorethylene, tetrachlorethylene, 1,1,1-trichloroethane, 1,1,2-trichloroethane content of eight volatile halogenated hydrocarbons, with retention time for qualitative , External standard method for quantitative analysis. [Result] The detection rates of four halocarbons of trichloromethane, bromine dichloromethane, dibromochloromethane and tribromomethane were all 100.0%. Some of the water samples detected tetrachlorethylene and trichlorethylene, and all the water Neither 1,1,1-trichloroethane nor 1,1,2-trichloroethane was detected. Except 1 municipal water supply sample chloroform exceeded the limit, the remaining indicators are in line with the “drinking water health standards” (GB5749-2006) requirements. There was a significant difference in the contents of chloroform, bromodichloromethane, dibromochloromethane and tribromomethane in the tap water of 4 tap water pipelines (P <0.05). [Conclusion] The volatile halocarbons in drinking water of Tangshan are mainly trihalomethanes, basically meeting the hygienic standards. Water from the surface water, groundwater and surface water mixed water as the source water pipe end water trihalomethanes than groundwater as a source of water.