金堂县饮用水水质抽样调查分析

目的了解金堂县饮用水水质卫生状况,为饮用水的综合治理提供依据。方法对全县农村分散式供水、小型集中式供水以及自来水厂的出厂水、管网水、末梢水采用随机抽样检测分析。结果调查采样共242份,合格率为26.86%(65/242);检测25个项目,合格率89.92%(5314/5910)。其中,pH值、氟化物、铜、锌、砷、硒、汞、镉、铬(六价)、铅合格率100%。农村分散式给水水质合格率低于小型集中式供水(P0.05),小型集中式供水间合格率差异无统计学意义(P0.05),幼儿园、小学校、中学校的小型集中式供水水质合格率差异无统计学意义(P0.05)。结论金堂县生活饮用水的合格率低,尤其是农村分散式给水和小型集中式供水,需特别注重生活饮用水的污染防治和消毒管理。

Survey of Drinking Water Quality in Jintang County

Objective To understand the hygienic condition of drinking water in Jintang County and provide evidence for comprehensive management of drinking water.Methods The water samples were collected randomly from de-centralized water supply systems and small centralized water supply systems and water plants（product water,network water and t5ap water） for detection.Results Of 242 drinking water samples,the qualification rate was 26.86 %（65/242）;the qualification rate for PH,Fluoride,Cu,Zn,As,Se,Hg,Cd,Cr（6＋）and Pb was 100%.The qualification rate of drinking water from de-centralized drinking water supply was lower than the small centralized water-supply in rural area（P〈0.05）.There was no statistical difference on drinking water quality among the water from different small centralized water-supply systems（P〉0.05）,and among the centralized water supply systems in kindergarten,primary school and middle school.（P〉0.05）.Conclusion The qualification rate of drinking water was low in Jintang county（26.86%）,especially the drinking water from de-centralized water supply systems and small centralized water supply systems in rural area.Close attention should be paid on the prevention of drinking water pollution and disinfection of drinking water.