摘要
利用国际和国内饮用水中消毒副产物的一些有代表性的数据 ,计算了各种消毒副产物的致癌风险。分析结果显示 :(1)饮用水中三卤甲烷和卤乙酸浓度的相关性不好 (R2 ≤ 0 4887) ,说明不能从一类消毒副产物的浓度来推断另一类消毒副产物的浓度 ;(2 )在饮用水中消毒副产物的总致癌风险中 ,卤乙酸的致癌风险占 91 9%以上 ,三卤甲烷的致癌风险则在 8 1%以下 ;(3)饮用水中卤乙酸浓度与消毒副产物的总致癌风险之间相关性极好 (R2 ≥ 0 919)。综合以上三点 。
This article set up a method to calculate the carcinogenic risk of disinfection by products (DBPs), and analysed some representative data of DBPs in drinking water. The analysing results showed that: (1) poor correlation ( R 2≤0.488 7) was found between trihalomethanes (THMs) and halo acetic acids (HAAs), and predictions of one kind of DBPs based on another kind is not feasible; (2) the carcinogenic risk of HAAs was always found to be the major portion of the total carcinogenic risks of DBPs (more than 91.9 percent); (3) a high correlation ( R 2≥0.919) was found between HAAs concentration and the total carcinogenic risks of DBPs. Therefore, it can be proposed that HAAs concentration in drinking water be used as a preferential indicator of the total carcinogenic risks of DBPs.
出处
《给水排水》
CSCD
北大核心
2000年第8期1-6,共6页
Water & Wastewater Engineering
