重庆市渝中区2011年二次供水水质检测结果分析

Water quality analysis of the secondary feed-water in Yuzhong District of Chongqing in 2011

目的通过了解渝中区二次供水水质的卫生状况,为加强辖区二次供水管理提供依据。方法按照《生活饮用水标准检验方法》(GB/T5750-2006)进行水样的采集和检测,按照《生活饮用水卫生标准》(GB5749-2006)进行水样的评价。结果 2011年重庆市渝中区二次供水水质合格率为92.72%,其中菌落总数、总大肠菌群合格率相对较低,分别为97.57%、94.66%。按不同类型单位分类,居民住宅楼的合格率较低,为89.43%,按不同材质的二次供水设施类型分类,水泥型合格率为92.61%。结论渝中区二次供水合格率较高,但仍存在污染风险,应继续加强卫生监督管理,采取有效措施,促进辖区二次供水水质卫生再上新台阶。

Objective To investigate the water quality of the secondary feed-water. Methods The data of sec- ondary feed-water was collected and detected according to the Drinking Water Standard Examination Method （GB/ T5750-2006）, and evaluated according to the Hygiene Standards for Drinking Water（GB5749 2006）. Results The water quality of feed-water of Yuzhong District in 2011 was 92.72%. The quality rates of total number of bacteria and total coliforms were 97. 57% and 94.66% respectively. According to the different type of unit classification, residential buildings qualified rate was 89.43%. According to the different materials of the secondary feed-water fa- cility type classification, cement type qualified rate was 92.61%. Conclusion The qualified rate could be high, but there might be also some hygiene risks of secondary feed-water. Measures to strengthen supervision and management should be taken to promote the water quality of secondary feed-water.