Sanitary quality of drinking water analysis in rural areas of Heyuan.

Objective To investigate sanitary quality of drinking water in rural areas of Heyuan.Methods Using stratified random sampling principle to investigate and analysis the water.Results Heyuan rural drinking water mainly to the underground water which accounted for 79.47% .It is mainly a non-centralized way of supply , accounted for 77.71%.The percentages of drinking from water supply with complete treatment, partial treatment, tap water without any treatment are 26.92% , 15.39% and 57.69% , respectively.In the 150 water samples, the water quality of rural drinking water above grade II have 82, accounting for 54.67%.Underground water is better than surface water, with a pass rate(χ2=3.96, P0.05).The total bacteria, total coliform count of the centralized water supply is superior to the decentralized water supply, with a significant difference in the passing rate(χ2=4.32、5.58, P0.05).Conclusion The main factor of Heyuan unsafe drinking water in rural areas is the microbial contamination.Strengthen the awareness of rural drinking water hygiene, water well site selection, protection and water purification and disinfection are important to prevent all kinds of water-mediated diseases, and the protection of people's health.