城乡生活饮用水水质检测结果分析  

Analysis of the Results of Urban and Rural Drinking Water Quality Testing

作　　者：黎庆耀 张海凤 张硕 梁美钿 黄幼娜 LI Qingyao;ZHANG Haifeng;ZHANG Shuo;LIANG Meitian;HUANG Youna(Luoding Center for Disease Control and Prevention,Luoding 527200,China)

机构地区：[1]罗定市疾病预防控制中心,广东罗定527200

出　　处：《食品安全导刊》2023年第28期76-79,共4页China Food Safety Magazine

摘　　要：目的:探究罗定市城乡生活饮用水的水质情况。方法:按《生活饮用水标准检验方法》(GB/T 5750.2—2006)规定,从2020年5月下旬到2022年11月初,收集罗定市城镇与乡镇的出厂水、末梢水共842份进行检测,分析该地区的城乡生活饮用水水质。结果:2020—2022年城乡生活饮用水总合格率为78.03%(657/842),2020年城乡生活饮用水合格率为90.38%(216/239),2021年城乡生活饮用水合格率为68.09%(224/329),2022年城乡生活饮用水合格率为79.20%(217/274);城镇生活饮用水合格率为92.14%(129/140),乡镇生活饮用水合格率为75.21%(528/702);出厂水的合格率为80.71%(251/311),末梢水的合格率为76.46%(406/531)。2021年罗定市城乡生活饮用水的水质检测合格率低于2020年与2022年,城镇的水质检测合格率高于乡镇,差异有统计学意义(P<0.05);不同水样类型的水质检测合格率相当,差异无统计学意义(P>0.05);2020—2022年,微生物指标不合格率最为严重,其中细菌总数不合格率为5.70%,总大肠菌群不合格率为6.77%。结论:罗定市城乡生活饮用水合格率较低,微生物指标超标严重,需给予高度重视。Objective:To investigate the water quality of living drinking water in urban and rural areas of Luoding city.Method:According to GB/T 5750.2—2006,from late May 2020 to early November 2022,842 copies of factory water and terminal water from towns and townships in Luoding city were collected for testing to analyze the quality of urban and rural living drinking water in the area.Result:The total qualified rate of urban and rural drinking water is 78.03%(657/842)in 2020—2022,the qualified rate of urban and rural drinking water is 90.38%(216/239)in 2020,the qualified rate of urban and rural drinking water is 68.09%(224/329)in 2021,and the qualified rate of urban and rural drinking water is 79.20%(217/274)in 2022;the urban drinking water qualification rate is 92.14%(129/140),and the qualification rate of township drinking water is 75.21%(528/702);the qualification rate of factory water is 80.71%(251/311),and the qualification rate of terminal water is 76.46%(406/531).The qualification rate of urban and rural drinking water in 2021 is lower than that of 2020 in Luoding city and 2022,the qualified rate of water quality testing in towns is higher than that in townships,and the difference is statistically significant(P<0.05);the qualified rate of water quality testing of different water sample types is comparable,and the difference is not statistically significant(P>0.05);the failure rate of microbiological indexes is the most serious in 2020—2022,of which the total bacterial counts failure rate is 5.70%,total coliform failure rate is 6.77%.Conclusion:The qualified rate of urban and rural drinking water in Luoding city is low,and the microbiological indicators exceed the standard seriously,which needs to be paid great attention to.

关 键 词：生活饮用水 微生物 细菌总数 总大肠菌群 

分 类 号：R123.1[医药卫生—环境卫生学]