定西市安定区城乡居民饮用水水质调查分析

Diagnoses of the quality of drinking water of the urban and rural residents in Anding District of Dingxi City

为了解定西市安定区城乡居民生活饮用水质量,确保饮用水安全、卫生达标,对定西市安定区部分地方的生活饮用水进行水质常规分析项目的测定。从检测的12个水质指标可以看出,安定区城乡居民饮用水的色度、浊度、嗅和味、肉眼可见物均符合标准,合格率为100%;pH值在6.5-8.5之间,显弱碱性,亦符合饮用水水质要求;电导率、总硬度、碱度均有不同程度的偏高。城镇居民饮用水检测结果显示,水中氯化物含量以及化学耗氧量偏高;农村居民饮用水检测结果显示,水中氯化物含量以及化学耗氧量完全符合饮用水水质要求。

In order to understand the quality of drinking water of the urban and rural residents in Anding District of Dingxi City, and make sure the safety and health standard of it, the article has carried out a general diagnosing program on the quality of drinking water in some places in Anding District. From the 12 water-quality indexes diagnosed, there came a conclusion that the following items, such as color, turhidity, odor, taste and substances visible to the naked eyes were all meet the qualification with acceptance rate of 100%. pH value was between 6.5-8.5, significant weak alkaline, which was accord with the qualification of drinking water, whereas its conductivity, water hardness and alkalinity were a bit higher. On one hand, the diagnoses of the urban residents revealed that chloride content and chemical oxygen consumption were slightly high; on the other hand, the diagnoses of the rural residents showed that both chloride content and chemical oxygen consumption fully met the qualification of drinking water.