Analysis of rural drinking water sanitary status in Zhaoping from 2009 to 2011

Objective:To understand the quality of rural drinking water in Zhaoping,to provide scientific basis for improving the quality of rural drinking water.Methods: The water quality test was conducted according to Standard examination methods for driking water(GB/T5750-2006),and the result was evaluated according to Standdard for driking water quality(GB/T5749-2006).Results: Three hundred water samples were tested during the 3 years,the overall pass rate was 36.33%,and there was significant difference among the three years.The significant difference was also found between the pass rates of the centralized water supply and the decentralized water supply(P0.001).Conclusion: The pass rate of the drinking water has increased annually in Zhaoping county,but polluted by microorganisms seriously.The pass rate of the centralized water supply is higher than the decentralized′s.It is suggested to expand the scope of the centralized water supply,strengthen the effective purification and disinfection of the water quality,thus ensuring the safety of the rural drinking water.