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目的了解慈溪市各乡镇自备水井卫生状况与水质微生物污染情况,为对使用自备井的单位和个人进行监督指导提供依据。方法对全市21个水井监测点的水样进行细菌总数、大肠菌群、肠道致病菌检测,结合监测点资料进行综合分析。结果连续2年共监测检验了5 344份水样,微生物指标合格率为70.2%,其中细菌总数合格率73.6%、大肠菌群合格率为62.2%、未检出肠道致病菌、9.2%的水井存在被粪便污染的可能;公井与户井的检出率差异有统计学意义;水井合格率与周围有无污染源有关,并随距污染源由近到远逐渐升高;42.9%的监测点井水合格率不到平均值。结论自备井水质微生物污染严重,必须加强自备水井各项卫生管理措施,加大饮用水卫生宣教力度,增强防病意识。
Objective To understand the health status of the wells and the microbial contamination of water in towns and villages in Cixi and provide the basis for the supervision and guidance of units and individuals using self-prepared wells. Methods The total number of bacteria, coliforms and intestinal pathogenic bacteria in water samples collected from 21 well monitoring sites in the city were measured, and the data of monitoring sites were combined for comprehensive analysis. Results A total of 5 344 water samples were monitored and monitored for 2 consecutive years. The passing rate of microbial indicators was 70.2%, of which the passing rate of bacteria was 73.6%, the passing rate of coliform bacteria was 62.2%, no intestinal pathogens were detected, 9.2% Of the wells were contaminated by faeces. The differences between the wells and wells were statistically significant. The wells’ pass rates were related to the surrounding pollution sources and increased gradually from near to far. 42.9% Point wells qualified rate of less than the average. Conclusions The quality of self-prepared wells is seriously polluted by microorganisms. We must strengthen various health management measures for self-provided wells, increase the sanitation awareness of drinking water and enhance awareness of disease prevention.