北京市东部某区2010-2018年生活饮用水水质状况与不合格因素分析  

Analysis of Drinking Water Quality and Unqualified Factors in a District of Eastern Beijing from 2010 to 2018

作　　者：郑奇光[1] 马红梅[1] 刘盛田[1] 李明艳[1] 李红芸[1] 潘淼[1] ZHENG Qiguang;MA Hongmei;LIU Shengtian;LI Mingyan;LI Hongyun;PAN Miao(Beijing Shunyi District Center for Disease Control and Prevention,Beijing 101300,China)

机构地区：[1]北京市顺义区疾病预防控制中心,北京101300

出　　处：《现代食品》2021年第9期176-180,共5页Modern Food

摘　　要：目的:了解北京市顺义区生活饮用水水质卫生状况与水质不合格因素,提供水质监测与改善依据。方法:按《生活饮用水标准检验方法》(GB/T 5750—2006)中的方法进行采样、保存、运输和检测,按GB 5749—2006进行结果判定。结果:2010—2018年,共检测市政供水3338件,自备井水4532件,总体合格率比较显示市政供水合格率大于自备井水合格率(χ^(2)=28.0,P<0.01),差异有统计学意义。结论:该区生活饮用水水质总体状况良好,导致市政供水水质不合格的主要因素是菌落总数,需要做好二次供水设施的消毒和管道的维护。导致自备井水不合格的项目排在第一位是氨氮,反映自备井水供水设施需要进一步改善,增强水源保护。其次是菌落总数,反应自备井水消毒措施需要加强。Objective: To understand the sanitary status and unqualified factors of drinking water quality in this area,and to provide the basis for water quality monitoring and improvement. Methods: Sampling, storage, transportation and detection were carried out according to the standard test methods for drinking water(GB/T 5750-2006). The results were determined according to GB 5749-2006. Results: From 2010 to 2018, a total of 3 338 pieces of municipal water supply and 4 532 pieces of self provided well water were detected. The overall qualified rate of municipal water supply was higher than that of self provided well water(χ^(2)=28.0, P < 0.01), and the difference was statistically significant. Conclusion: The overall quality of drinking water in this area is good, and the main factor leading to the unqualified municipal water supply is the total number of colonies. It is necessary to do a good job in disinfection of secondary water supply facilities and maintenance of pipes. Ammonia nitrogen is the first cause of unqualified self provided well water, which reflects that self provided well water supply facilities need to be further improved to enhance water source protection. The second is the total number of colonies, and the self provided well water disinfection measures need to be strengthened.

关 键 词：水质监测 生活饮用水 市政供水 自备井水 

分 类 号：R123.1[医药卫生—环境卫生学]