2016—2020年包头市管道直饮水水质监测结果分析  

Analysis of the Monitoring Results of Direct Drinking Water Quality of Pipes in Baotou City from 2016 to 2020

作　　者：刘晓霞 余三平 张晓婷 LIU Xiaoxia;YU Sanping;ZHANG Xiaoting(Water Conservancy Development Center of Baotou City,Baotou Inner Mongolia,014030,China)

机构地区：[1]内蒙古自治区包头市水利事业发展中心,内蒙古包头014030

出　　处：《质量安全与检验检测》2022年第3期18-21,共4页QUALITY SAFETY INSPECTION AND TESTING

摘　　要：为分析2016—2020年包头市管道直饮水水质监测结果,为行业监管部门提供科学管理依据,本文按照《生活饮用水标准检验方法》(GB/T 5750-2006)进行采样和检验,依据《饮用净水水质标准》(CJ 94-2005)进行水质评价。5年共监测水样1481份,水质总合格率93.79%;产品水、终端水、回水合格率分别为96.61%、92.47%、91.00%,产品水的合格率高于终端水和回水,差异有统计学意义(P<0.05);不合格指标中菌落总数的超标率最高,为2.84%;专业水务公司运营的水站样品合格率(94.24%)高于非专业运行单位(91.08%),但差异无统计学意义(P>0.05)。影响管道直饮水水质的主要环节在于产品水的输送过程,即二次污染,导致超标的指标中以菌落总数为主,提示运营单位应加强水站的日常维护和管理。To analyze the monitoring results of direct drinking water quality of Pipes in Baotou City from 2016 to 2020,in order to provide scientific management basis for industry regulatory authorities.Accordance to Standard Test Method for Drinking Water(GB/T 5750-2006),the water samples were collected and tested,and water quality evaluation was based on Purified Drinking Water Quality Standards"(CJ 94-2005).A total of 1481 water samples were tested in 5 years,the total qualification rate was 93.79%;the qualification rate of product water,terminal water,and back water were 96.61%,92.47%and 91.00%,respectively;the qualification rate of product water was higher than that of terminal water and back water,and the difference was statistically significant(P<0.05);the bacteria exceeding the standard rate was the highest,which is 2.84%;the qualification rate of samples of water stations operated by professional water companies was higher than that of non-professional operators(91.08%),but the difference was not statistically significant(P>0.05).The main facter that affects the quality of direct drinking water is the transportation process of product water,that is secondary pollution.The total number of bacteria is the main indicator exceeding the standard caused secondary pollution.It is reminded that the operating company should strengthen the daily maintenance and management of the water station.

关 键 词：包头市 管道直饮水 水质 监测 

分 类 号：R123.1[医药卫生—环境卫生学] TU991.2[医药卫生—公共卫生与预防医学]