2012年绵阳市生活饮用水检测结果分析

Analysis on the detection results of drinking water in Mianyang City in 2012

目的了解绵阳市饮用水卫生状况,为政府科学决策提供参考数据,以保障饮用水安全。方法按《生活饮用水水质检测标准检验方法》(GBT/5750-2006),对绵阳市2012年不同水样(水源水、出厂水、末梢水、二次供水、自备水和农村水)的检测结果进行分析。结果共检测水样1 260份,合格904份。城市饮用水和农村饮用水合格率的差异有统计学意义(P<0.05);冬春季饮用水和夏秋季饮用水合格率的差异有统计学意义(P<0.05);不合格指标中,总大肠菌群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,相关部门应采取措施,加强对农村饮用水的卫生监管。

[ Objective] To understand the hygienic condition of drinking water in Mianyang City, provide reference data for government to make the scientific decision, and ensure the safety of public drinking. [ Methods] The detection results of water samples （ including source water, finished water, tap water, secondary water supply, self-prepared water and rural centralized water） in Mianyang City in 2012 were analyzed according to the Standard examination methods for drinking water （ GBT/5750-2006 ）. [ Results] Among 1260 water samples, 904 were qualified. There was significant difference in qualified rate of drinking water between urban areas and rural areas （ P 〈 0.05 ） . The difference in qualified rate of drinking water between winter-spring and summer-autumn was significant （ P 〈 0.05 ） . The over standard rates of total coliform group and disinfectant were high. [ Conclusion] The qualified rate of drinking water is high in urban areas of Mianyang City, while that is low in rural areas. The related departments should carry out comprehensive measures to strengthen the hygiene supervision in rural drinking water.