深圳市2016年生活饮用水水质影响因素  

Factors influencing drinking water quality in Shenzhen,2016

作　　者：刘国红[1] 廖玉学[1] 黄广文[1] 李锦[1] 王玮[1] 周国宏[1] 季佳佳[1] 

机构地区：[1]深圳市疾病预防控制中心环境与健康所,广东深圳518055

出　　处：《中国热带医学》2018年第1期72-75,共4页China Tropical Medicine

摘　　要：目的分析深圳市生活饮用水水质的影响因素。方法全市2016年枯水期和丰水期共采集出厂水样101份、末梢水样218份和二次供水样20份,合计339份饮用水样进行水质检测分析。水样的采集和检验按照《生活饮用水标准检验方法》(GB/T 5750-2006)进行。水样的评价按照《生活饮用水卫生标准》(GB 5749-2006)进行。使用SPSS18.0进行水质影响因素的Logistic回归分析,构成比及率的比较用χ~2检验。结果深圳市2016年饮用水样品合格率为94.39%,项次合格率为99.86%。饮用水水质影响单因素和多因素分析结果表明,水源类型、水期类型、水厂供水能力、饮用水消毒方式、水厂是否进行深度和特殊处理以及水样检测指标数量是影响饮用水水质结果的重要因素(P<0.05)。其中制水环节消毒方式的OR值为3.246,对水质的影响程度最大。结论饮用水从源水到末端龙头水,存在多环节多次污染的风险,影响水质合格率的因素众多,应加强饮用水的系统和全面管理,确保饮用水水质。Objective To investigate the factors influencing the drinking water quality in Shenzhen City in 2016.Methods According to the Standard testing methods for drinking water（GB/T 5750-2006）, 101 samples of finished water,218 of tap water, and 20 of secondary water supply were collected in the city in 2016（totally 339 samples） and the qualities of these samples were detected and evaluated according to the Standard for drinking water quality（GB 5749-2006）. The results were analyzed by using SPSS 18.0. Results The qualified rate of the drinking water samples was 94.39%, and the qualified rate of the testing items was 99.86%. The single and multiple factor analyses showed that the water source types, water period,supply capacities of water plants, disinfection methods, water advanced treatment and special treatment, and quantity of testing items of water samples were the vital influencing factors of drinking water quality（P〈0.05）. Among these factors, the value of odds ratio of the disinfection methods in the water making process was 3.246, which had the greatest impact on the water quality. Conclusion From the water source to tap water, there are repeated pollution risks. Many factors influence the qualification of water quality. Therefore, we should enhance the systematization and comprehensive management of drinking water to ensure its quality.

关 键 词：饮用水水质 影响因素 LOGISTIC回归 

分 类 号：R123.1[医药卫生—环境卫生学]