某市2012年农村生活饮用水水质监测状况的分析

目的了解罗定市农村生活饮用水水质卫生状况,并为改变农村饮用水状况及制定我国农村疾病预防控制策略提供有力的科学依据。方法按照《生活饮用水标准检验方法》(GB/T 5750-2006)、《2012年广东省农村饮用水监测方案》的要求,选取有代表性的饮用水监测点17个,分别在枯水期和丰水期取100份水样。结果:枯水期采集水样50份,丰水期采集水样50份,合格率分别为62.0%,74.0%,二者无显著性差异(χ2=1.654412<χ20.05,1,可知P>0.05);出厂水和末梢水合格率分别为68.18%、67.86%,差别无显著意义(χ2=0.001194<χ20.05,1,可知P>0.05);不合格指标主要是色(度)、浑浊度、肉眼可见物、锰、菌落总数、总大肠菌群、耐热大肠菌群超标。结论罗定市农村饮用水水质状况存在一定隐患,仍需要加以改善。

Analysis of Drinking Water Quality Monitoring Results in Rural Areas of A City of 2012

Objective To know the hygienic condition of drinking water in rural areas of Luoding, and provide strong scientific basis for changing the status of rural drinking water and drawing up the disease prevention and control strategies of rural China. Methods According to the ＂Standard Examination Methods for Drinking Water＂ （GB/T 5750-2006）, ＂Guangdong Province Rural Drinking Water Monitoring Program in 2012＂, 17 drinking water monitoring points were selected, respectively, 100 water samples were collected in the dry season and the wet season. Results The qualified rates of the water samples in the dry season（50 samples） and the wet season（50 samples） were 62% and 74%, no significant difference （3（2= 1.654412〈Z20.05：, so P〉0.05）; the qualified rates of finished water and tap water were 68.18% and 67.86%, no significant difference （2,2=0.001194〈2＂2o.05.1, so/〉〉0.05）; the main unqualified index is the color （degree）, the turbidity, the visible to the naked eye, the manganese, the total bacteria, the total coliforms, the therrnotolerant coliform bacteria of the water samples exceeded the standard. Conclusion Water quality of drinking water in rural areas of Luoding, there are certain hidden dangers, and still need to be improved.