2009-2014年陕西省澄城县饮用水中硝酸盐氮监测结果分析

Nitrate nitrogen monitoring results analysis of drinking water in Chengcheng County of Shaanxi Province from 2009 to 2014

目的了解和掌握澄城县饮用水中硝酸盐氮的污染状况,确定受污染程度及污染源,为保证居民饮用水的安全和管理提供科学依据。方法根据全国农村饮用水监测方案,对2009-2014年澄城县的15个监测点进行连续监测,每年监测丰水期和枯水期各一次,每个点同时监测出厂水和末梢水。结果连续6年共检测360份样品,总检出率为100.0%,不合格率为2.2%。超出国家卫生标准限值的有8份,分别是2009年4份、2011年4份。结论澄城县的饮用水受到一定程度的污染,有关部门需加强饮用水的安全管理,以预防和控制水源性疾病的发生。

Objective To understand and master the pollution status of drinking water nitrate nitrogen in Chengcheng County. The dame,to determine the degree of pollution and pollution sources,to provide scientific basis for the safety and management of drinking water. Methods Under the guidance of the national rural drinking water monitoring programs,continuous monitoring 15 monitoring points in Chengcheng County from 2009 to 2014,monitoring of abundant water period and low water period each time annually,and each point monitoring finished water and tap water. Results A total of 360 samples were detected in six consecutive years,with a total detection rate of 100. 0% and a failure rate of 2. 2%. The national health standard limit of 8 copies,respectively,4 in 2011,4 in 2009. Conclusion Drinking water in Chengcheng County was polluted to a certain extent,still need the relevant departments to strengthen the safety management of drinking water and to prevent and control the occurrence of waterborne diseases.