2014～2016年大同县生活饮用水水质监测

Monitoring on drinking water quality,Datong county,2014-2016

目的了解大同县生活饮用水的整体卫生状况,为政府相关部门采取针对性措施提供可靠数据。方法对大同县2014~2016年枯水期(3~4月)和丰水期(8~9月)水质监测数据进行统计分析,对辖区内3镇7乡116个水质监测点进行水质采样、检测和评价。结果2014~2016年共监测水样232份,合格112份,合格率为48.28%,各年的水样合格率分别为29.76%(25/84)、70.59%(48/68)、48.75%(39/80)(P<0.01);枯水期合格率为58.62%,丰水期合格率为37.93%(P<0.01);氟化物的合格率仅为58.19%(135/232)。结论大同县生活饮用水水质合格率偏低,氟化物超标是引起水质不合格的主要因素。

Objective To understand the overall hygienic status of drinking water in Datong county,so as to provide basis for relevant government departments to take targeted measures. Methods During 2014-2016, the water quality monitoring data of Datong county in the dry season （March-April） and wet season （August-September） were statistically analyzed. The water quality monitoring from 116 points of 3 towns, 7 townships were sampled, monitored and evaluated. Results During 2014-2016, a total of 232 water samples were monitored, 112 were qualified, the qualif/ed rate was 48. 28%,the annual qualified rate was 29.76% （25/84） ,70.59% （48/68） and 48. 75% （39/80）respectively （ P 〈0. 01） ; the qualified rate in the dry season was 58.62%, that of the wet season was 37.93% ,the overall quality is better than the dry season water period （ P 〈0. 01） ;the fluoride qualified rate was only 58.19% （135/232）. Conclusion The qualified rate of drinking water quality is low in Datong county. Excessive fluoride is the main factor causing the unqualified water quality.