城郊环境梯度下地表径流污染特征研究  

Study on the Surface Runoff Pollution Characteristic under the Urban-Suburb Gradient

作　　者：杨龙[1] 孙长虹[1] 范清[1] 王永刚[1] 

机构地区：[1]北京市环境保护科学研究院,国家城市环境污染控制工程技术研究中心,北京100037

出　　处：《安徽农业科学》2014年第24期8311-8313,共3页Journal of Anhui Agricultural Sciences

基　　金：北京市环境保护科学研究院科技基金项目(2013-A-05)

摘　　要：采用事件平均浓度(EMC)和M(V)曲线初期冲刷效应判识方法,对2011年4月北京市中心城区和远郊区县降雨径流污染特征进行分析。结果表明,受城郊环境差异影响,径流污染物种类、浓度和初期冲刷效应存在明显分异,城区COD、TP、TN污染物浓度低于郊区,氨氮浓度高于郊区;城区径流存在初期冲刷效应,郊区无明显初期冲刷效应。The event mean concentration （EMC） and M （V） curve method of judging first flush effect were used to analyze Beijing center city and remote suburb district runoff pollution characteristics on April,2011.The results show that,under the urban-suburb environment difference effect,runoff pollutants,concentration and first flush effect have major personality differences.COD,TP,TN pollutant concentration of the urban runoff is lower than the suburb; ammonia concentration is higher than the suburb runoff.First flush effect exists in the urban runoff;the suburb has no obvious first flush effect.

关 键 词：城郊环境梯度 城市地表径流 非点源污染 初期冲刷效应 

分 类 号：X143[环境科学与工程—环境科学]