机动车车速对道路交通扬尘排放特征的影响  

Influence on emission charactreistics of road traffic dust caused by vehicle speed

作　　者：张诗建 姬亚芹[1,2] 朱振宇[1,2] 张亚飞[1,2] 李树立[1,2] 赵静波[1,2] 

机构地区：[1]南开大学环境科学与工程学院,天津300071 [2]国家环境保护城市空气颗粒物污染防治重点实验室,天津300071

出　　处：《环境污染与防治》2016年第4期82-84,90,共4页Environmental Pollution & Control

基　　金：环保部公益性行业科研专项(No.201409004)

摘　　要：机动车行驶过程中车轮转动引起的道路交通扬尘对城市颗粒物具有较大影响。利用DustTrak 8530型颗粒物检测仪结合全球定位系统(GPS),研究了机动车车速对道路交通扬尘排放特征的影响。结果表明:随着车速的加快,由机动车车轮转动引起的PM_(10)、PM_(2.5)浓度以及PM_(2.5)/PM_(10)(质量浓度比,下同)逐渐增大;通过对数据进行拟合,分别得出PM_(10)、PM_(2.5)浓度及PM_(2.5)/PM_(10)与机动车车速之间的函数关系。研究结果为准确构建道路交通扬尘排放清单以及测试道路交通扬尘排放因子和排放量奠定了实验基础。The emission of road traffic dust caused by motor vehicles＇ wheel rotation has a significant contribution to the urban particulate matter.In this paper,the relationship between vehicle speed and road traffic dust emission characteristics was investigated by utilizing 8530 DustTrak real-time particle concentration detector and Global Position System（GPS）.The results showed that,the higher the vehicle speed,the more PM10 and PM_（2.5）emitted,and the higher value of PM_（2.5）/PM10 was observed.Through data fitting,the function relationship between the vehicle speed and the value of PM10,PM_（2.5）and PM_（2.5）/PM10 was obtained,respectively.This study laid experiment foundation for measuring emission factor and establishing emission inventory of road traffic dust.

关 键 词：道路交通扬尘 车速 PM10 PM2.5 排放特征 

分 类 号：X734[环境科学与工程—环境工程] X513