中国西北某县饮用水水质分析

罗妍; 张珂; 陈思佳; 车鑫垚; 李巧娥; 彭慧

doi:10.13421/j.cnki.hjwsxzz.2018.05.014

中国西北某县饮用水水质分析

Analysis on Quality of Drinking Water in a County of Northwest China

摘要

摘要:
目的通过检测西北某县饮用水中九种阳离子、酸碱度和浊度等指标，了解当地饮用水质量。
方法选择某县三个乡镇采集水样159份，依据用水比例分别抽取41份窖水、10份泉水和2份自来水水样，进行感官性状及一般化学组分共13项指标的测定。并对不同仪器的最佳工作条件，做了方法的准确性和精密度测试。
结果浊度和肉眼可见物窖水和泉水均有超标，窖水的臭和味及铁含量均超标，饮用水中均检测出钙、镁、铁、锌、铜、钠、镍、铅八种金属元素，镉在（μg/L）级未检出。
结论通过统计对该县饮用水质量做出评估，为当地饮水安全工程提出科学的建议。

Abstract:
Objectives To determine the quality of drinking water in a county of northwest China by examination of the levels of 9 cations, pH and turbidity in water samples.
Methods A total of 159 water samples were collected from three townships in the county; 41 cellar water, 10 spring water and 2 tap water samples were selected according to the proportion of the water used by local people. A total of 13 indictors, including orgaoleptic properties and general chemical constituents, were determined. The accuracy and precision of the method were tested for getting the best working condition of different instruments.
Results The turbidity and appearance in cellar and spring waters were all exceeded the standard limits, the odor and taste and iron level of cellar water were all exceeded the standard limits, and the levels of calcium, magnesium, iron, copper, sodium, nickel and lead were all determined in water samples. Cadmium had not been found at (μg/L) level.
Conclusions The evaluation on the quality of drinking water in the county would provide some scientific recommendations for local drinking water safety projects.

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