2015-2017年襄阳市主城区饮用水安全状况分析

Safety of Drinking Water in the Downtown Area of Xiangyang City From 2015 to 2017

目的了解襄阳市生活饮用水卫生质量,预防控制介水传染病。方法依据《襄阳市城市生活饮用水监测方案》设置监测点、采样频率,依据《生活饮用水标准检验方法》(GB/T 5750-2006)对水样进行检测。出厂水、管网末梢水、二次供水均依据《生活饮用水卫生标准》(GB 5749-2006)进行评价。合格率的比较采用χ~2检验。结果 2015-2017年襄阳市主城区生活饮用水水质平均合格率为88.21%,水质合格率由高到低依次为出厂水(93.10%)、管网末梢水(90.17%)、二次供水(84.66%),主要的不合格指标是消毒剂和微生物指标。结论襄阳市主城区生活饮用水水质整体合格率较高,部分指标仍不合格,应进一步加强生活饮用水的卫生监督、监测和规范管理。

Objective To understand the sanitary quality of drinking water in Xiangyang City and to prevent waterborne infectious diseases.Methods Monitoring sites and sampling frequencies were set according to the Monitoring Scheme for Urban Drinking Water in Xiangyang City,and water samples were analyzed according to the Standard Examination Method for Drinking Water(GB/T5750-2006.Finished water,tap water and secondary supply water were evaluated according to the Hygienic Standard for Drinking Water(GB5749-2006).Chi-square test was used to compare the qualified rate.Results The average quality conformity rate of drinking water in the downtown area of Xiangyang City was 88.21%from 2015 to 2017.Ranked by quality conformity rate,water samples were in the following order:finished water(93.10%),tap water(90.17%)and secondary supply water(84.66%).The main nonconforming indicators were disinfectants and microorganisms.Conclusion The overall quality conformity rate of drinking water quality in the downtown area of Xiangyang City is high,and some indicators are still unqualified.It is necessary to further strengthen the sanitary supervision,monitoring and standardized management of drinking water.