2015-2016年武汉市市政管网末梢水水质监测分析

目的 了解武汉市市政管网末梢水卫生现状,为改善居民生活饮用水水质提供科学依据.方法 2015—2016年全市6个中心城区设立40个市政管网末梢水监测点,每个监测点在每个季度各采集1份水样进行监测,监测末梢水中微生物指标(菌落总数、总大肠菌群、大肠埃希氏菌)、毒理学指标(砷、镉、铬、铅、汞、硒、氰化物、氟化物、硝酸盐、三氯甲烷、四氯化碳)、感官性状和一般化学指标(色度、浑浊度、臭和味、肉眼可见物、pH、铝、铁、锰、铜、锌、氯化物、硫酸盐、溶解性总固体、总硬度、耗氧量、挥发酚类、阴离子合成洗涤剂、氨氮)以及饮用水消毒剂常规指标(游离氯).监测结果按照《生活饮用水卫生标准》(GB/T 5749-2006)中标准限值进行评价.结果 分析研究的市政管网末梢水水样共320份,所检项目结果全部达到国家《生活饮用水卫生标准》(GB5749-2006),合格率为100.00％.结论 武汉市市政管网末梢水水质状况较好,但相关监管部门不能掉以轻心,仍需加强生活饮用水水质监测.

Municipal tap water quality in Wuhan City(2015-2016)

Objective To investigate the hygiene condition of municipal tap water,and provide a scientific basis for improving drinking water quality of the residents.Methods Forty monitoring stations of municipal tap water were set up in 6 urban areas of Wuhan in 2015-2016.One water sample was monitored in each station quarterly.Total bacterial count,total coli forms,Escherichia coli,toxicological indicators (arsenic,cadmium,chromium,lead,mercury,selenium,cyanide,nitrates,fluoride,chloroform and carbon tetrachloride),sensory properties and general chemical indicators,chromaticity,turbidity,odor and taste,visible to the naked eye,pH,aluminum,iron,manganese,copper,zinc,chloride,sulfate,total soluble solid,total hardness,oxygen consumption,volatile phenol,ammonia nitrogen,anionic synthetic detergent,and conventional index for drinking water disinfectant (free chlorine) were detected.All samples were analyzed according to the Standards for drinking water quality(GB/T 5749-2006).Results 320 samples of municipal tap water were detected,all were qualified.Conclusion The quality of municipal tap water in Wuhan City was good,monitoring and supervision would still be strengthened.