Identification of priority pollutants for typical drinking water sources in northern Zhejiang province
Effective identification of potentially hazardous priority pollutants is important for preventing environmental risks in drinking water sources.Based on the full-indicator monitoring of 350 initial screening pollutants of 7 categories in 6 typical drinking water sources in northern Zhe-jiang,the multi-criteria scoring method involved in the occurrence(O),persistence(P),bioaccu-mulation(B)、ecotoxocity(E)and human health toxicity(H),was established for pollutants priori-tization in drinking water sources and applied in northern Zhejiang.Results showed that the detec-tion frequencies of the 7 major groups of substances in the 6 drinking water sources in northern Zhejiang were low,and the drinking water is safe.The priority pollulant list included 44 chemi-cals,of which the top 10 substances with the highest overall ranking scores were perfluorooctanoic acid,perfluorotetradecanoic acid,dichlorodiphenyltrichloroethane,benzo(a)pyrene,fluridiflura-lin,chlorpyrifos,pyrethrum,dibenzo(a,h)anthracene,hexachlorobenzene and hexachlorocyclo-pentadiene.The prioritization of the seven major groups of pollutants was PFAS＞PAHs＞PRs＞SVOCs＞ANTs＞HMs＞VOCs.It is necessary to screen high priority groups and revise the exist-ing list for drinking water sources regularly,based on evaluation factors such as OPBEH of pollu-tants in different regions,thus accurately identify potentially hazardous substances and enhance the level of drinking water safety.
Drinking water sourcesIdentification of priority pollutantsMulti-criteria screen-ingPriority controlHazardous substances
万方数据
维普
