2011年-2013年乐业县大石围山区生活饮用水水质状况与分析

Quality status of the drinking water in Dashiwei mountains of Leye county during 2011-2013 and its analysis

目的了解广西乐业县大石围山区生活饮用水水质现状,为进一步改善水质质量、预防水源性疾病提供科学依据。方法 2011年-2013年共采集枯水期、丰水期水样240份,按照GB/T 5750—2006《生活饮用水标准检验方法》进行监测。结果 2011年-2013年共监测的240份水样中,各项指标的总超标率为70.42%。丰水期和枯水期超标项目之间差异有统计学意义(P<0.05),超标率较高的是微生物指标,枯水期水质比丰水期要好。结论大石围山区生活饮用水安全状况存在隐患,缺乏水源保护意识和有效的消毒措施。居民应改变饮用生水的习惯,加强对水质的消毒和净化;相关部门应加强生活饮用水的监督管理和宣传,减少可控的水源性疾病,保证居民的饮水安全和身体健康。

Objective To explore the quality status of drinking water in Dashiwei mountains, Leye county, so as to provide sci- entific evidence for the project of improving drinking water quality and the control of water - borne diseases. Methods 240 wa- ter samples were collected in the wet season and dry season from 2011 to 2013 and surveyed according to the ＂Standard Exami- nation Methods for Drinking Water＂ （ GB/T 5750--2006）. Results From 2011 to 2013, a totall of 240 water samples were monitored, the total over standard rate was 70.42%. The differences between items exceeding the standard had statistical signif- icance between dry season and wet season （P 〈 0.05 ）. The high over standard rate was of microbial indicators. The drinking water in dry season is better than that in wet season. Conclusion There is hidden danger of drinking water security in Dashiwei mountains. There was a lack of protection awareness of water and effective disinfection measures. Residents should change drinking habits and strengthen effective water purification. Besides that, it is necessary to strengthen the supervention and man- agement of drinking water sanitation, so as to reduce the controllable water - borne diseases and ensure the drinking water safety and health of residents.