机动车辆入城前冲洗与道路扬尘的监测分析

Monitoring Analysis of Car-washing and Flying-ash on Urban Roadway

对机动车辆入城前冲洗前后携带车尘量及粒径进行了监测分析。监测结果,冲洗后,消除了60％～70％的车尘,道路扬尘降低40％左右。根据实测资料分析了交通车流量和风速对道路扬尘浓度的影响。结果表明,建立机动车辆入城冲洗站,对机动车辆入城前进行冲洗,环境效益和经济效益显著。

In comparison with the monitoring data of particula-tes before and after car-washing have been made. The result showed that car-washing decreased 60-70% of particulates loading on the vehicle, and the flying-ash generated from urban roadway reduced about 40%. Effects of traffic flow and wind velocity on urban roadway flying-ash concentration were also presented.