摘要
目的:通过分析射阳县枯水期和丰水期居民生活饮用水出厂水、末梢水中三氯甲烷的浓度,了解本县居民饮用水中的三氯甲烷的污染情况。方法:依据《生活饮用水标准检验方法第8部分:有机物指标》(GB/T 5750.8—2023)中顶空气相色谱法检测射阳县2021—2022年生活饮用水样品中三氯甲烷含量,采用统计软件进行分析,P<0.05为有统计学差异,并对饮水途径的健康风险进行初步评价。结果:2021—2022年累计检测水样426份,其中枯水期水样213份,丰水期水样213份,合格率为100%,年致癌风险为7.07×10^(-6),危害指数为0.0228。结论:2021—2022年射阳县生活饮用水水样中均检出三氯甲烷,但没有超出国家标准,存在一定的健康风险。
Objective:To understand the pollution situation of trichloromethane in drinking water of residents in Sheyang county by analyzing the concentration of trichloromethane in factory water and peripheral water during the dry and high water periods.Method:According to the headspace gas chromatography method in GB/T 5750.8—2023,the content of trichloromethane in drinking water samples from Sheyang county from 2021 to 2022 was detected.Statistical software was used for analysis,and P<0.05 was used as the statistical difference.A preliminary evaluation was conducted on the health risks of drinking water routes.Result:From 2021 to 2022,a total of 426 water samples were detected,including 213 samples during the dry season and 213 samples during the high season,with a qualification rate of 100%and an annual cancer risk of 7.07×10^(-6),harm index is 0.0228.Conclusion:Trichloromethane was detected in drinking water samples from Sheyang county from 2021 to 2022,but it did not exceed the national standard for birth,posing a certain health risk and within an acceptable range.
作者
周晓军
ZHOU Xiaojun(Laboratory Department of Sheyang Disease Control and Prevention Center,Sheyang 224300,China)
出处
《食品安全导刊》
2023年第23期134-137,共4页
China Food Safety Magazine
关键词
健康风险评价
三氯甲烷
生活饮用水
health risk assessment
trichloromethane
drinking water
作者简介
周晓军(1982-),男,江苏射阳人,本科,主治检验师。研究方向:理化检验。
