哈尔滨市阿城区地下水氨氮污染现状及成因分析研究

摘要

通过采样分析阿城区上游水源地附近地下水样品并结合近年来该区地下饮用水中氨氮的监测结果,评价阿城区地下水氨氮污染状况,结果表明,氨氮是目前阿城区地下水的一个重要污染源,阿城区上游局部地区地下水氨氮超标严重,沿着该区地下水的基本走向,地下水的氨氮污染随之加重.城南沟、阿什河等地表水体下渗,区域内畜禽养殖业污染及化肥、农药、垃圾等面源污染下渗是造成阿城区地下水氨氮污染的主要因素.%In order toassess the current situation of ammonia nitrogen pollution in groundwaterin A Cheng district, this paper analyzed the groundwatersamplinginupstreamareas ofthelocalwater sourceandthe monitoring results of ammonia nitrogen in drinking waterof this district.The results show that ammonia nitrogen is the major pollutantin groundwater in A Cheng district, and the groundwater with dangerous levelsofliquidnitrogen is located in upstream ,and ammonia nitrogen pollution of groundwater increase accordingly along the basic direction of the groundwater.Thesurface water such asCheng Nan ditchandAshi riverinfiltration, an-dregional livestock industry pollution infiltration, chemical fertilizers, pesticides, trash and other non-point source pollution in-filtrationare major contributors to ammonia nitrogen pollution in groundwaterin A Cheng district.