生态环境学报Issue(2)：352-358,7.
城市路面降雨径流污染特征及源解析的研究进展
Research advance in the characterization and source apportionment of pollutants in urban roadway runoff
摘要
Abstract
As a major part of urban surface runoff, urban road runoff has drawn extraordinary attention due to its large magnitude of pollution and severe influence on surface water bodies. By summarizing the results of previous studies on water quality of road rainfall runoff, it can be found that the concentration of COD, TP, TN and Pb were 239.59, 0.46, 6.29 and 0.14 mg·L-1, respectively, and exceeded the Ⅴ class of surface water. The concentration of TSS was 552.86 mg·L-1. Therefore, the COD, TP, TN, Pb and TSS were the main pollutants of urban road runoff. The concentration of Pb, Cu and Zn are higher in the highway than the other road. But, the concentration of TSS and COD are lower in the highway than the other road. When Comparing domestic studies with the other countries’, the pollutants concentration of road rainfall runoff are higher in China. The most researchers found that the concentration of pollutants and rainfall volume have negative correlation. The steeper slope of the road could produce higher runoff concentrations of pollutants due to the greater friction between vehicle tire and road and more burnt fuel. The road sweeping could have adversely affected to the concentration of pollutants mainly due to releasing the fine material from the fixed load but not having enough suction to remove them. However, there are contradicting reports in the literature as to the correlation of the concentration of pollutants with rainfall intensity, antecedent dry period, rainfall duration and average daily traffic. By summarizing the data in existing studies, it is found that the concentration of COD, TSS, Pb and Cu in road runoff at the traffic volume ≥30 000 were 2.5, 4.3, 1.4 and 5.1 times respectively, compared with the concentration at the traffic volume<30 000. In the road runoff, the heavy metals were mainly come from vehicle’s exhaust, the organic pollutants mainly sourced from vehicles activities and road material and the nutrition-related pollutants mainly sourced from atmospheric dry and wet deposition. The following aspects should be carried out in future research:To take the polycyclic aromatic hydrocarbons and Escherichia coli into the research program;Deep analysis of the factors affecting rainfall runoff water quality and the interaction between factors, and to utilize the isotope tracing techniques to indentify the pollution source of the urban road runoff.关键词
道路径流/水质/影响因素/污染物来源Key words
road runoff/water quality/influencing factors/pollution source分类
资源环境引用本文复制引用
张千千,李向全,王效科,万五星,欧阳志云..城市路面降雨径流污染特征及源解析的研究进展[J].生态环境学报,2014,(2):352-358,7.基金项目
国家水体污染控制与治理科技重大专项（2012ZX07307）；国家科技支撑计划项目 （）
