水资源保护2017，Vol.33Issue(5)：159-163,5.DOI:10.3880/j.issn.1004-6933.2017.05.025
天津典型居民区不同下垫面雨水径流污染特征
Runoff pollution characteristics under different underlying surfaces of typical residential areas in Tianjin City
摘要
Abstract
Based on the monitoring on runoff water quality under different underlying surfaces of typical residential areas in Tianjin,typical rainfall was chosen to investigate the characteristics of runoff pollutants and event mean concentration (EMC).The results show that the pollution mass concentration in runoff of main roads and markets decreases with the rainfall duration and the scouring effect is obvious.The pollution concentration in runoff of roofs changes slightly with the rainfall duration and the scouring effect is weak.There are significant differences between the pollution concentrations in runoff of three kinds of underlying surfaces.The SS concentration in runoff of main roads is similar to that of markets,but much higher than that of roofs.The COD and TP concentrations in runoff ranking from high to low are markets,main roads,and roofs,and the TN concentration in runoff ranking from high to low is markets,roofs,and main roads.Suppose EMC is defined as the mid-value,the mean pollutant concentration in runoff of markets is higher than that of main roads and roofs,and the TP concentration in runoff of markets is 3 times that of main roads and 24 times that of roofs.So the runoff pollution in typical residential areas of Tianjin City is quite serious.The water quality in rivers and water environment of the City will be strongly influenced if the runoff is directly drained into rivers without any interception or treatment.关键词
雨水径流/不同下垫面/污染特征/事件平均浓度/天津Key words
runoff/different underlying surfaces/pollution characteristic/event mean concentration/Tianjin City分类
资源环境引用本文复制引用
许伟,常素云,占强..天津典型居民区不同下垫面雨水径流污染特征[J].水资源保护,2017,33(5):159-163,5.基金项目
水利部公益性行业科研专项(201401047) （201401047）
天津市水务局科技处项目(KY2014-02) （KY2014-02）
水利部“948”项目(201515) （201515）
