Analysis of Monitoring Results of Disinfection By-Products in Drinking Water in Suzhou City from 2020 to 2022
In order to understand the pollution situation of disinfection by-products in drinking water of Suzhou city,Jiangsu province,and provide basis for drinking water safety management,according to GB/T 5750-2023,from 2020 to 2022,a total of 852 drinking water samples of Suzhou city are collected,including 276 samples of factory water,396 samples of terminal water,180 samples of secondary water supply.12 kinds of DBPs in the water samples are tested and evaluated according to GB/T 5749-2022.The results show that except 1,2-dichloroethane and carbon tetrachloride,other DBPs are detected in drinking water of Suzhou city,but they are all within the limit standard.The overall qualified rate of water samples is 100%.There are no significant difference in DBPs concentration and detection rates between different types of water samples(P>0.05).This indicates that the overall situation of drinking water of Suzhou city is good,but relevant departments should still strengthen the monitoring of DBPs,do a good job in its health risk assessment,and provide scientific support for drinking water health risk management.
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