2012年-2015年句容市生活饮用水监测结果分析  

Monitoring results of drinking water quality in Jurong during 2012-2015

作　　者：董淑江 尹艳[1] 陈萍[1] 徐沛麟 陶睿[1] 

机构地区：[1]句容市疾病预防控制中心,江苏句容212400

出　　处：《中国卫生检验杂志》2016年第16期2369-2372,共4页Chinese Journal of Health Laboratory Technology

摘　　要：目的了解句容市生活饮用水水质卫生状况,为有效的改善水质质量措施提供科学依据。方法按照GB/T5750—2006《生活饮用水卫生标准检验方法》进行采样检测,按照GB/T 5749—2006《生活饮用水卫生标准》进行评价。结果 2012年-2015年共检测水样2 385份,合格率为84.65%,各年间合格率呈逐年增高的趋势,差异有统计学意义（χ^2=41.802,P〈0.01）。出厂水、末梢水合格率分别为86.83%、83.62%。市政供水、乡镇供水和区域供水的合格率分别为96.75%、71.03%、91.69%,市政水厂水质合格率和区域供水水质合格率差异无统计学意义（χ^2值分别为4.186、6.238,P〉0.05）。结论句容市生活饮用水水质合格率呈逐年升高的趋势,浑浊度、耗氧量、游离余氯、总大肠菌群、耐热大肠菌群和菌落总数是影响生活饮用水合格率的主要因素。建议加强农村集中式供水的制水规范,卫生管理,加强供水管道的管理,继续推进区域供水,保证饮用水安全。Objective To understand the hygienic status of domestic drinking water in Jurong,so as to provide scientific basis for the governments＇ formulation of measures on water quality improvement.Methods According to GB/T 5750—2006 Standard Examination Method for Drinking Water,the water samples were collected and detected.And according to GB/T 5749—2006 Hygienic Standard for Drinking Water,the results were evaluated.Results A total of 2 385 water samples were detected during 2012-2015,and the qualified rate was 84.65%;and the qualified rate was increasing yearly,with the differences statistically significant（χ^2= 41.802,P〈0.01）.The qualified rates of finished water and tap water were 86.83% and 83.62%.The qualified rates of municipal water,township water and regional water were 96.75%,71.03%,91.69%,respectively.The difference of qualified rate between municipal water and regional water had no statistical significance（χ^2=4.186,6.238,P〈0.05）.Conclusion The qualified rate of drinking water in Jurong is improving steadily.The main influencing factors of quailed rate are turbidity,oxygen consumption,free residual chlorine,carbon tetrachloride,total coliforms,heat-resistant coliforms and the total number of colonies.We are suggested that standards and management strategy of centralized water supply in rural area should be formulated and water supply line be supervised in order to improve regional water supply and water safety.

关 键 词：水质 监测 出厂水 末梢水 

分 类 号：R123.1[医药卫生—环境卫生学]