2013 年绵阳市生活饮用水检测结果

目的了解绵阳市饮用水卫生状况，保障饮水安全，预防介水传染病的发生。方法按GB／T5750—2006（（生活饮用水水质检测标准检验方法》对不同水样（水源水、出厂水、末梢水、二次供水、自备水和农村水）进行分析，检测结果按GB5749—2006（（生活饮用水卫生标准》进行评价。结果共检测水样424份，合格水样333份，合格率78．5％。城市与农村生活饮用水合格率分别为94．6％、63．6％，差异有统计学意义（P〈0．05）。农村集中式供水、农村学校自建式供水和农村分散式供水检测合格率分别为66．0％、71．1％和38．5％，差异有统计学意义（P〈0．05）；菌落总数和消毒剂指标超标率较高。结论绵阳市城市饮用水合格率较高，农村饮用水合格率较低，应加大农村生活饮用水监管力度，确保农村集中式供水卫生消毒制度落实，减少农村自备井使用。

Analysis of drinking water test results in Mianyang City in 2013

[ Objective ] To understand the hygienic condition of drinking water, to ensure the safety of public drinking and control the waterborne diseases in Mianyang City. [ Methods ] The drinking water samples collected from source water, finished water , tap water , secondary water supply, self-prepared water and rural water -owned was tested and evaluated by the Sanitary Standard for Drinking Water（ GB 5749-2006}. [ Results] A total of 424 water samples were detected with the qualified samples of 333. The qualified rate was 78.5%. The qualified rates of urban and rural drinking water samples were 94.6% and 63.6%, respectively, with significant difference （ P 〈 0.05 }. The qualified rates of centralized water supply, school self-built water supply and rural de- centralized water supply were 66.0%, 71.1% and 38.5 %, respectively, with significant difference { P 〈 0.05 ）. The total number of colonies and disinfectant indexes exceed the standard seriously. [ Conclusion ] The qualified rate is high in urban drinking water of Mianyang City. However, the qualified rate is relatively low in rural drinking water. It is necessary to strengthen the supervision on rural drinking water, to ensure the implementation of sanitary disinfection system in rural centralized water supply, and reduce the use of rural self-drilled well.