珠海市2011—2014年抽检生活饮用水水质分析

Analysis of Quality of Drinking Water in Sampling Inspectionin Zhuhai during 2011—2014

对珠海市2011—2014年抽检的自来水供水系统中964份水样进行了分析与评价,结果表明,各类水样水质平均合格率为90.9%,合格率由高到低依次是:出厂水、管网水、二次供水。微生物指标及游离余氯、总氯不合格是二次供水不合格的主要原因,出厂水、管网水水质良好,二次供水水质卫生质量有待提高。

964 water samples of water supplying system from 2011 to 2014 have been analyzed and evaluatedfor the sampling inspection in Zhuhai. Results show that the average rate of qualification of various water samples was 90. 9%. The qualification rates ranged from high to low were tape water, pipeline water,secondarywater supply. The main reasons for the unqualified water samples were the unqualified microbial indicators, free chlorine and total chlorine. Conclusions: tape water and pipeline water were fine. The water quality of secondary water supply needs to be improved.