海口市城区不同下垫面降雨径流污染特征  

Analysis on Water-Runoff Pollutions of Different Underlying Urban Surfaces in Haikou City

作　　者：李春荣[1] 刘坤[1] 林积泉[2] 唐文浩[1] 

机构地区：[1]海南大学环境与植物保护学院,海南海口570228 [2]海南省环境科学研究院,海南海口570206

出　　处：《中国环境监测》2013年第5期80-83,共4页Environmental Monitoring in China

基　　金：2011年高等学校博士学科点专项科研基金联合资助课题"海口湾典型持久性有机污染物分布迁移规律及其生态毒理效应研究"(20114601120001)

摘　　要：分析海口市4种主要下垫面的径流水质,研究其污染程度和变化规律,并与国内其他城市进行对比。监测项目包括pH、SS、COD Cr、TN、TP、Pb、Cr、Cd、Zn、石油类。结果表明,各下垫面径流水样水质较好,除路面径流COD Cr超过《地表水环境质量标准》(GB 3838—2002)V类标准2倍,其他水质指标均达到标准要求;各污染物浓度初期较高,随降雨历时降低并趋于稳定,绿地径流污染物浓度下降速率比路面与屋面缓慢;相比国内其他海边城市,海口城区污染程度较轻。Analysis on the water-runoff quality of the four main underlying surfaces in Haikou city.The researches of pollution degree and the change rules are compared with the studies of the other cities.Monitoring projects including：pH,SS,CODCr,TN,TP,Pb,Cr,Cd,Zn,and so on.The results show that most of the underlying surface runoff water qualities conform to the standards.All of the concentrations of the pollutants decline to the stable level along with the continuous rain from early high values,but the CODCr value of road surface runoff is 2 times higher than the grade Ⅴ standard of surface water quality.Contrast in other seaside cities,the water-runoff pollution degree in Haikou city is lesser.

关 键 词：径流水质 下垫面 海口城区 

分 类 号：X824[环境科学与工程—环境工程]