滁州市2016~2018年生活饮用水水质监测结果分析  

Analysis of monitoring results of drinking water quality in Chuzhou from 2016 to 2018

作　　者：李实 王计争[1] LI Shi;WANG Jizhen(Chuzhou Center for Disease Control and Prevention,Chuzhou 239000,Anhui,China)

机构地区：[1]滁州市疾病预防控制中心,安徽滁州239000

出　　处：《安徽预防医学杂志》2020年第4期277-280,共4页Anhui Journal of Preventive Medicine

摘　　要：目的分析滁州市生活饮用水卫生状况及变化趋势,评价生活饮用水卫生质量。方法依据《生活饮用水卫生标准》(GB5749-2006),对2016~2018年滁州市的出厂水、末梢水、二次供水进行监测,根据检测结果进行分析和评价。结果 2016~2018年共检测水样1 927份,总体合格率为84.3%,丰水期、枯水期水样合格率分别为76.3%、80.5%,差异有统计学意义(χ~2=5.021,P<0.05)。2016~2018年农村生活饮用水合格率分别为63.7%、75.4%、 80.7%,差异有统计学意义(χ~2=34.61,P<0.005)。3年间出厂水和末梢水合格率分别为77.1%、71.2%,差异有统计学意义(χ~2=5.61,P<0.05)。城市生活饮用水不合格指标主要是菌落总数、总大肠菌群,农村生活饮用水不合格指标主要是菌落总数、总大肠菌群、二氧化氯、耗氧量、游离余氯。结论滁州市生活饮用水水质状况总体良好,农村生活饮用水合格率呈逐年上升趋势,菌落总数和总大肠菌群为主要不合格指标,应进一步督促农村乡镇水厂做好水质消毒工作,确保饮用水质量。Objective To analyze the sanitary status and change trend of drinking water in Chuzhou City,and evaluate the sanitary quality of drinking water.Methods According to the "Hygienic standard for drinking water(GB5749-2006)",the water from the factory,the peripheral water and the secondary water supply in Chuzhou City from 2016 to 2018 were monitored,and the results were analyzed and evaluated.Results A total of 1 927 water samples were detected from 2016 to 2018,and the overall qualified rate was 84.3%.The qualified rates of water samples in wet season and dry season were 76.3% and 80.5%,respectively,with significant difference(χ~2 = 5.021,P< 0.05).From 2016 to 2018,the qualified rates of rural drinking water were 63.7%,75.4% and 80.7%,with significant difference(χ~2 = 34.61,P< 0.005).The qualified rates of finished water and tap water in the three years were 77.1% and 71.2%,respectively,with significant difference(χ~2 = 5.61,P<0.05).The main unqualified indexes of urban drinking water are total bacterial count and total coliform group,while the unqualified indexes of rural drinking water are total bacterial count,total coliform group,chlorine dioxide,oxygen consumption and free residual chlorine.Conclusion The quality of drinking water in Chuzhou is generally good,and the qualified rate of rural drinking water is increasing year by year.The total number of colonies and total coliform are the main unqualified indicators.Therefore,it is necessary to further urged rural township water plants to do a good job in water disinfection to ensure the quality of drinking water.

关 键 词：生活饮用水 水质 监测 

分 类 号：R123.5[医药卫生—环境卫生学]