采集某市局下属单位自打井的井水及井旁河流上游井水水样作为对照,按《生活饮用水标准检验方法无机非金属指标》（GB/T5750.5-2006）的规定,分别采用紫外分光光度法、纳氏试剂分光光度法和重氮偶合分光光度法检验＂三氮＂含量,检测结果按国家《生活饮用水卫生标准》（GB5749—2006）进行评价.从不同来源的检样结果可以得出,河流上游井水水样未检出含氮化合物,自打井的井水水样中的亚硝酸盐氮含量超过国家标准.分析污染原因是由于生活垃圾等污染水源水所致.提出预防措施及改造方法,同时建议相关部门应加大管理力度,避免类似事件再次发生.%Through the acquisition of the well water in the city subordinate unit and the upper end of the nearby river, the paper makes a comparison of the two kinds of water. According to the （（Standard examination methods for drinking water-Nonmetal parameters）） （GB/T 5750.5-2006）, the paper tests the content of 3- Nitrogen by using Ultraviolet spectrophotometry, Nessler＇s reagents spectrophotometer, Diazo coupled spectrophotometric methods. And the test results are evaluated according to the National Hygienic Standard of Living Water. From the sample water from different sources we can get the result that the Nitrogen compounds have not been detected from the upriver, while Nitrite Nitrogen has been detected from the drilling Well water which is more than the national standard. The paper finds the major factor of the water pollution is that the domestic waste pollutes the source of drinking water. The paper also provides the preventive measures and reconstruction methods, meanwhile It suggests that the relevant departments should strengthen the management to prevent similar incidents from happening again.
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