2003—2018年广州市市政供水出厂水水质调查  

Investigation on sanitary quality of finished water of municipal water supply in Guangzhou during 2003-2018

作　　者：王德东[1] 黎晓彤[1] 钟嶷[1] 周金华 黄仁德[1] 毕华[1] 孙丽丽[1] 李琴[1] 李泽荣[1] WANG De-dong;LI Xiao-tong;ZHONG Yi;ZHOU Jin-hua;HUANG Ren-de;BI Hua;SUN Li-li;LI Qin;LI Ze-rong(Executive Office for Managing Action,Guangzhou Center for Disease Control and Prevention,Guangzhou,Guangdong 510440,China)

机构地区：[1]广州市疾病预防控制中心业务管理部,广东510440

出　　处：《环境与健康杂志》2019年第12期1087-1089,共3页Journal of Environment and Health

基　　金：广州市医学重点学科建设项目(2017-2019-07);广州市科技计划项目(201904010161)。

摘　　要：目的了解广州市市政供水出厂水水质状况及变化趋势,为促进饮水安全和健康提供科学依据。方法于2003—2018年,对广州13座市政供水厂的480份出厂水样进行检测,对合格率的年度趋势和枯、丰水期差异进行分析。结果2003—2018年,广州市市政供水出厂水总合格率为81.04%,各年的合格率呈现逐年升高的趋势(Z=-8.35,P<0.0001);丰水期微生物指标合格率低于枯水期,差异有统计学意义(P<0.05);出厂水不合格指标主要为氨氮和锰。结论本次调查的广州市市政供水出厂水的水质状况良好,应进一步关注丰水期水源水水质并调整水厂处理工艺。Objective To investigate the water quality and the changing tendency of finished water of the municipal water works in Guangzhou,and to provide scientific basis for promoting the safety and sanitation of drinking water.Methods According to the national standard,the finished water samples from the municipal water works in Guangzhou were collected and detected from 2003 to 2018.The data of 480 testing samples were analyzed.Results The total qualified rate of Guangzhou municipal water supply works was 81.04%from 2003 to 2018.The annual qualified rate showed an increasing trend(Z=-8.35,P<0.0001).The qualified rates of microbial indicators in wet season were lower than those in dry season,and the differences were statistically significant(P<0.05).The unqualified indicators were mainly ammonia nitrogen and manganese.Conclusion It is considered that the quality of finished water of the municipal water works in Guangzhou is good.The quality of source water in wet season should be paid more attention to,and the treatment process of water works should be improved further.

关 键 词：市政供水 出厂水 水质监测 

分 类 号：R123.1[医药卫生—环境卫生学]