滇池北岸面源污染的时空特征与初期冲刷效应  

Spatial and Temporal Distribution Characteristics and First Flush Effect of Urban Non-point Source Pollution in North Bank of Dianchi Lake

作　　者：何佳 郑一新 徐晓梅 王丽 何咏 陈云波 张大为 李中杰 

机构地区：[1]昆明市环境科学研究院,云南昆明650032 [2]昆明市滇池管理局,云南昆明650032

出　　处：《中国给水排水》2012年第23期51-54,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07102)

摘　　要：为研究滇池流域城市面源污染的时空分布特征与初期冲刷效应,在滇池北岸昆明市区不同功能区布置监测点,对在不同下垫面及不同功能区收集到的降雨径流水质进行监测。结果表明:不同功能区的降雨径流污染特征存在差异,其中交通道路区的各污染物浓度最高,而城郊结合部径流污染程度仅次于交通道路区;不同类型下垫面的降雨径流污染特征差异性较大,各污染物的EMC值排序为:道路>庭院>屋顶;不同污染物在不同下垫面的初期冲刷效应因受多种因素影响而表现出不同的分异规律。To investigate the spatial and temporal distribution characteristics and first flush etlbct of urban non-point source pollution in Dianchi Lake basin, monitoring points were distributed in different functional areas of Kunming City to monitor rainfall runoff quality. The results showed that the rainfall runoff pollution characteristics in different functional areas were different, in which the concentration of pollutants in traffic areas was highest, and that in urban and suburban neighborhoods was second. The rainfall runoff pollution characteristics in different underlying surfaces had a high difference, and event mean concentration （EMC） in different underlying surfaces was in the order of traffic road 〉 yard 〉 roof. The first flush effect of different pollutants in different underlying surfaces exhibited multiple differ- entiation laws due to a number of factors.

关 键 词：滇池 城市面源 降雨径流 初期冲刷效应 

分 类 号：X131.2[环境科学与工程—环境科学]