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目的了解民勤县生活饮用水卫生现状,为饮水安全管理工作提供科学依据和技术支持。方法依照《甘肃省饮用水卫生监测方案》采集集中供水水样共354份,按照《生活饮用水标准检验方法》(GB/T 5750—2006)进行检验,对检测结果按照《生活饮用水卫生标准》(GB/T 5749—2006)进行评价,结合县情分析民勤地下水水质、生态状况及变化趋势。结果民勤县饮用水在所检测的30项指标中多数指标为合格,超标最严重的是微生物指标中的菌落总数,其次是溶解性总固体,个别指标微超。结论菌落总数超标是民勤县饮用水合格率低的主要因素,溶解性总固体超标是民勤县地下水水质恶化的实质性问题。民勤县水质在深井水层的溶解性总固体仍有超标,说明了民勤县水质盐碱化问题的严重性,应该从改变水质的盐碱化做起。
Objective To understand the sanitary status of drinking water in Minqin County and provide scientific basis and technical support for drinking water safety management. Methods A total of 354 centralized water samples were collected according to the “Sanitary Monitoring Program for Drinking-water in Gansu Province”. According to the “Standard Test Method for Domestic Drinking Water” (GB / T 5750-2006), the test results were in accordance with “Sanitary Standard for Drinking- ”(GB / T 5749-2006) to evaluate, combined with the county situation analysis of ground Qinhui groundwater quality, ecological status and trends. Results Most of the 30 indexes tested in Minqin County were qualified, the most serious ones exceeded the total number of colonies in the microbial index, followed by the total dissolved solids, and the individual indexes were slightly exceeded. Conclusion The total number of colonies exceeded the standard of drinking water in Minqin County. The over-standard total dissolved solids of Minqin County is a serious problem of groundwater quality deterioration in Minqin County. Minqin County water quality in deep well water solubility of total solids is still excessive, indicating the seriousness of the problem of water quality salinization in Minqin County should start from changing the salinity of water quality.