2015年郑州市城市生活饮用水水质监测分析

Monitoring results Analysis of drinking water in urban area of Zhengzhou city in 2015

目的了解郑州市生活饮用水水质卫生状况,为饮用水卫生管理提供基础资料。方法按照《生活饮用水标准检验方法》(GB/T 5750-2006)对水样进行检测,并对监测结果进行分析和评价。结果 2015年共监测各类生活饮用水样120份,城区供水合格率为95.0%,所辖县(市)供水合格率为78.3%,不合格指标均是游离氯和菌落总数。结论郑州市城市生活饮用水水质总体情况良好,少数供水存在安全隐患,仍需进一步加强消毒卫生监管及供水日常监测。

Objective To understand the hygiene condition of drinking water quality in Zhengzhou city, and provide basic data for the management of drinking water hygiene. Methods To test water sample in accordance with The Drinking Water Standard Examination Method （GB/T5750-2006）, then analyzes and evaluates the results. Results Monitoring 120 drinking water samples in 2015, the qualified rate of water supply is 95.0 % in the city, 78.3% towns and countries within the jurisdiction, and the unqualified indicators are Free Chlorine and Colony summation. Con- clusion The water quality of drinking water status overall is good in Zhengzhou city, only a few potential security risks exist. So we need to strengthen the supervision of water disinfection and monitoring daily water supply.