2016年咸阳地区生活饮用水枯水期深井水卫生现况调查

Investigation of the hygienic status of drinking water from the deep well in dry season in Xianyang in 2016

目的了解2016年咸阳地区枯水期水源水中深井水卫生状况,分析危害因素,为相关部门制定饮水防治措施提供科学依据。方法按照分层随机抽样的原则,抽取枯水期水源水中深井水样本331份。按照国家标准进行样品的采集、运输、保存、检测和评价。结果咸阳地区水源水以深井水为主,占比73.2%,合格率为68.3%。主要污染指标为六价铬,合格率为88.8%。结论咸阳地区部分深井水源受到不同程度污染,存在健康安全隐患,应有针对性的加强净水处理设备的净化效能,提高饮用水水质质量。

Objective To understand the hygienic situation of deep well water in dry season in Xianyang area in 2016. To assess harmful factors and provide scientific basis for the relevant departments to develop drinking water control measures. Methods 331 deep well water samples in dry season were extracted according to the principle of stratified random sampling,and samples were conducted for sampling,transporting,conserving,testing and assessment using the national standard methods.Results Source water is deep well water based in Xianyang area,accounting for 73. 2%,and the qualified rate was 68. 3%.The main pollutant is chromium,with the qualified rate of 88. 8%. Conclusion The water source of some deep wells in Xianyang area is polluted in different degree,and there are hidden dangers in health and safety. It should be targeted to strengthen the purification efficiency of water purification treatment equipment,improve the quality of drinking water.