Analysis on water environmental quality and problems of drinking water sources in Zhejiang Province

In order to comprehensively evaluate the water quality condition of drinking water sources area in Zhejiang Province,based on relative data,the water environmental condition of Zhejiang Province is analyzed from the aspects of water quality classification,eutrophication,microcystin toxins,organic pollutants and pesticides pollution,and acid rain,water pH status.The analysis results show that at present,the main factors affecting water quality are nitrogen and phosphorus,and the trophic level of water gradually increases;health risk caused by the organic pollution is less and within the acceptable level,but highly toxic carbamate pesticides(such as aldicarb,carbofuran) have high detection rates;water pH is neutral to slightly alkaline,so the direct impact of acid rain on water is inconspicuous,while the indirect and continuing impact could not be ignored.In view of the problems of water quality safety of drinking water sources,corresponding countermeasures for water quality protection are promoted.