The Investigation of Drinking Water Quality and Water-Borne Diseases in Liuzhou City

Objective To find out the water quality of drinking water and the status of water-borne diseases and provide scientific evidences for improving drinking water quality,controlling water-borne diseases.Methods The investigations such as the water source type of drinking water in the town and the country,the ways of water supply,water quality monitoring,the condition of water-borne diseases and the retrospect investigation were carried out.Results 111 samples were detected,the qualified rates of drinking water were 19.05% in the country,45.83% in secondary water supply,and 95.24% in city′s tap water pipe network.There was significant difference between the city′s tap water pipe-network and the secondary water(χ2=25.51,P0.01),likewise,there was also significant difference between the city central water supply and drinking water in rural(χ2=17.55,P0.01).The bacteriological index was the major cause.The residents′ incidence of intestinal infection diseases was related to the drinking water quality.Conclusion It could reduce water-borne diseases by strengthening daily monitoring to city planning water supply,improving the secondary water supply establishments and adding sterilizing establishments,and reinforcing central water supply management of drinking water.