2014-2015年舒城县农村生活饮用水常规指标监测分析

Conventional monitoring and analysis of drinking water in rural areas of Shucheng county in 2014-2015

目的:了解本地区生活饮用水水质状况,为保障人民的生活饮用水安全及有关部门制定科学高效的监管措施提供依据。方法:按照《生活饮用水卫生标准》(GB/T5750-2006)中的方法进行采样,保存并运送到实验室进行检测。卫生评价按照《生活饮用水卫生标准》(GB/T5749-2006)表1-表4中的指标进行评价。结果:2014-2015年共检测水样338份,其中188份检测指标全部合格,合格率55.6%,检测指标合格率由低到高的项目是浑浊度(66.6%)、二氧化氯(72.5%)、菌落总数(74.2%)、总大肠菌数(85.5%)和耐热大肠菌群(86.3%)。集中式供水合格率高于分散式供水,且差异有统计学意义(χ2=8.592,P=0.003);枯水期与丰水期水质合格率差异无显著性(χ2=0.487,P=0.485)。结论:舒城生活饮用水合格率低,特别是农村自备式井水,需要有关部门加强对生活饮用水水源的改进和加大力度进行监督监测工作,保证人民饮水健康。

Objective To investigate the drinking water quality in rural areas of shucheng county,to ensure the security of drinking water and to provide reference for making scientific and efficient monitoring measures of relevant departments.Methods The sampling,preserved and transported to the laboratory for detection according to Drinking Water Sanitary Standards（GB/T5750-2006）,were tested.The results were evaluated according to the Drinking Water Sanitary Standards（GB/T5749-2006）.Results A total of 338 water samples were detected from 2014-2015.The indicators were all qualified in 188 water samples,with a qualified rate of 55.6%.The items with qualified rates ranking from the lowest to the highest were turbidity（66.6%）,chlorine dioxide（72.5%）,colony count（74.2%）,total coliforms（85.5%）and heat-resistant coliform bacteria（86.3%）.Qualified rate of centralized water supply was significantly higher than decentralized water supply（χ2=8.592,P=0.003）.But there was no significant difference in qualified rate of water between the dry season and the wet season（χ2=0.487,P=0.485）.Conclusions The qualified rate of drinking water is very low in Shucheng county,especially rural self-contained wells.Relevant departments should improve drinking water resources and enhance supervision and monitoring work to ensure people＇s health.