高速公路路面径流污染影响因素的初步分析  

Preliminary Analysis of Influcening Factors of Expressway Runoff Pollution

作　　者：李华[1] 陈玉成[2] 杨志敏[2] 孔亚平[1] 毛彦景[2] 

机构地区：[1]交通运输部科学研究院,北京100029 [2]西南大学资源环境学院,重庆400716

出　　处：《公路交通科技》2011年第5期146-152,共7页Journal of Highway and Transportation Research and Development

基　　金：交通部西部交通建设科技项目(200731822108)

摘　　要：采集了重庆地区2条高速公路的路面径流水样,初步分析了影响径流污染特征的外部因素。结果表明,高速公路普通路面与悬空桥面之间,径流各污染物浓度均没有达到显著性差异,但车流量对径流的影响可能与车辆排出的有机废气沉降地面有关。各季节的污染程度依次为春季〉冬季〉夏季〉秋季。径流水质与降雨水质没有明显的相关关系。路面灰尘粒径越细,其所载污染物浓度就越高,污染也越重。80%以上的污染物积聚在2.0 mm以下的灰尘中。各污染物的酸雨浸出率为0.76%~15.94%,进入径流的可溶态污染物并不多,更多的是随雨水产生的颗粒态污染物。The road runoff samples from two expressways in Chongqing were collected to analyze preliminarily the external influencing factors of pollution characteristics of runoff preliminarily.The result shows that（1）the difference of pollutant concentrations of runoff between the general expressway and suspended bridge deck is not significant,but the impact of traffic on the runoff may be related to the settlement of vehicle exhausted organic waste on the ground;（2）the order of contamination levels in season is spring,winter,summer and autumn;（3）there is no obvious correlation between water qualities of rainfall and runoff;（4）the finer the dust particle on road,the higher the contained concentration of pollutant,and the pollution is more serious;（5）more than 80% of the pollutants accumulate in the dust below 2.0 mm;（6）leaching rate of the pollutants by acid rain is from 0.76% to 15.94%,this means the soluble pollutants into the runoff is not much,more is particulate pollutants produced with the rain.

关 键 词：环境工程 污染 路面径流 高速公路 因子 

分 类 号：X734[环境科学与工程—环境工程]