勐腊县2009-2010年农村生活饮用水监测结果分析

Monitoring result analysis on rural drinking water in Mengla County from 2009 to 2010

目的了解勐腊县农村生活饮用水卫生质量,掌握饮水水质、肠道传染病的动态变化情况,为制订科学、有效的改进措施提供依据。方法采用分层随机抽样方法,对农村生活饮用水水质按GB/T5750-2006进行抽样检测,按标准GB5749-2006进行评价。结果饮用水中微生物污染较严重,菌落总数、总大肠菌群、耐热大肠菌群合格率分别为55.7%、17.7%、18.8%,枯水期低于丰水期(菌落总数χ2=2.65,P>0.05;大肠菌群χ2=9.15,P<0.05;粪大肠菌群χ2=11.08,P<0.05)。结论我县农村生活饮用水水质不容乐观,存在安全隐患,需严格管理,防止肠道传染病的发生。

Objective To understand the quality of drinking water in rural area of Mengla County, master the dynamic change of water quality and intestinal infectious disease, and provide basis for formulating scientific and effective improvement measures. Method Select samples of rural drinking water by stratified random sam- piing according to GB/T5750 -2006, and evaluate ,the water quality by the standard of GB5749 -2006. Resuits The microbial contamination in drinking water was serious. The qualified rates of total bacterial count, total coliforms and thermotolerant coliforms were 55.7% 17.7%, 18.8%, respectively. The bacterial count in dry season was lower than that in wet season （ Total bacterial count： X2 = 2. 65, P 〉 0. 05 ; Coliforms ： X2 = 9.15, P〈0.05; Fecal coliform,x2 =11.08, P〈0. 05） . Conelmiom The quality of drinking water in our county was not very good, thus we needed to strengthen management to prevent the occurance of intestinal in- fectious disease.