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机构地区:[1]江苏省疾病预防控制中心,江苏南京210009
出 处:《现代预防医学》2017年第11期2093-2096,共4页Modern Preventive Medicine
基 金:国家卫生和计划生育委员会公益性行业科研专项(201302004)
摘 要:目的了解江苏省城市生活饮用水水质情况,保障人民群众饮水安全。方法 2015年对全省155家城市水厂展开调查,枯、丰水期采集出厂水、末梢水、二次供水共2 398份,检测水质常规指标。结果 2015年江苏省城市生活饮用水水质合格率为89.07%,主要不合格指标为二氧化氯、游离余氯、菌落总数、耗氧量、总硬度、氟化物。地表水为水源的水质合格率为90.97%,地下水源的水质合格率明显低于地表水源,仅为62.96%;常规处理的水质合格率为90.88%,仅消毒、未处理分别为70.49%、42.11%;深度处理的水质合格率达到91.97%,未深度处理的水质合格率仅为86.08%。结论 2015年江苏省城市生活饮用水总体水质良好,主要不合格指标为消毒剂、微生物、一般化学指标;生活饮用水水质与饮用水水源、水处理技术密切相关。Objective To investigate the sanitary status of the drinking water in Jiangsu province, and to ensure the safety of drinking water. Methods We investigated the water quality of 155 urban waterworks in Jiangsu province. 2 398 water samples were detected and the regular safety indices of water were tested. Results The pass rate of the quality of 2136 water samples was 89. 07%. The main unqualified indices were chlorine dioxide, free chlorine, total aerobic bacteria count, oxygen consumption,total hardness ,and fluoride. The qualification rate of surface water was 90.97% ,which was much higher than the rate of underground water ( 62.96% ). The qualification rates of routinely processed only disinfected and undisposed water were 90.88% ,70.49% and 42.11% respectively. And the qualification rate of deeply disposed water was 91.97%, while the rate was 86.08% of the water that was not been deep disposed of. Conclusion The water quality is acceptable in Jiangsu province, and the main unqualified indices are a disinfectant, microbial indexes and general chemical index. The quality of drinking Water is related to the water source and processing technology.
分 类 号:R12[医药卫生—环境卫生学]
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