衡水湖水质氨氮污染状况分析

Analysis of Ammonia Nitrogen Pollution in Hengshui Lake

以河北衡水湖湖区为研究对象,在所收集的2011—2020年水资源污染量数据资料的基础上,对湖区污染物排放总量和受纳污染物情况进行分析。由于氨氮是水体营养素,更是水体中的主要耗氧污染物,能导致水体产生富营养化现象,对鱼类及水生生物具有毒害作用,故着重进行衡水湖氨氮指标总量及各影响源对湖区氨氮排放贡献程度的分析。分析结果表明,湖区水环境氨氮污染主要来自生活源,应采取有效措施积极应对,尽快解决生活源氨氮排放;同时加强预防工业源氨氮排放和集中式氨氮排放。

Taking Hengshui Lake area of Hebei Province as the research object,based on the collected data of water resources pollution from 2011 to 2020,the total amount of pollutants discharged and the situation of pollutants received in the lake area were analyzed. As ammonia nitrogen is not only a nutrient in water body,but also a main oxygen consuming pollutant in water body,which can lead to eutrophication in water body and has toxic effect on fish and aquatic organisms,the total ammonia nitrogen index and the contribution degree of each impact source to ammonia nitrogen emission in Hengshui Lake area are analyzed. The results show that ammonia nitrogen pollution in lake area mainly comes from domestic sources,and effective measures should be taken to actively deal with and solve the ammonia nitrogen emissions from domestic sources as soon as possible,and strengthen the prevention of industrial and centralized ammonia nitrogen emissions.