金城江区农村饮用水监测微生物指标结果分析

Surveillance results and analysis of microbiological indicators in rural drinking water from Jinchengjiang District

目的了解金城江区农村饮用水微生物污染状况,对2008年-2017年金城江区农村饮用水监测微生物结果进行分析,为相关部门改善农村饮用水水质提供科学依据。方法按GB/T 5750—2006《生活饮用水卫生标准检验方法》进行检测,按GB 5749—2006《生活饮用水标准》进行评价。结果检测975份农村饮用水水样,菌落总数、总大肠菌群、耐热大肠菌群、3项指标综合合格率分别为52. 10%、60. 10%、71. 79%、50. 15%;不同类型供水方式微生物综合指标,乡镇水样合格率为75. 57%,村屯水样合格率为45. 51%。结论金城江区农村饮用水水质微生物指标合格率低,水质卫生状况不容乐观,但有向好趋势。相关水质监管部门应加大监督管理力度,强化饮用水消毒,进一步提高农村饮用水安全保障水平。

Objective To understand the status of microbial contamination in rural drinking water in Jinchengjiang District, and to analyze the rural drinking water monitoring results of microbe during 2008 - 2017, so as to provide scientific evidence for improving rural drinking water quality. Methods Test was conducted according to GB/T 5750-2006 Standard Examination Methods for Drinking Water, and result was evaluated according to GB 5749-2006 Standards for Drinking Water Quality. Results In the 975 examined samples, the qualified rates of the number of aerobic bacterial, total coliform bacteria, thermotolerant coliform, overall target were 52. 10%, 60.10%, 71.79%, 50.15% ; in the microbiological indicator of diverse water supply, the qualified rate of towns was 75.57%, and the qualified rate of villages was 45.51%. Conclusion The qualified rate of drinking water in rural areas of Jinchengjiang District is at low levels, and the water sanitation is not good enough. The related departments should strengthen supervision and management, especially disinfection of drinking water, so as to improve the quality of rural drinking water.