The Pollution Character Analysis and Risk Assessment for Metals in Dust and PM_(10) around Road from China

摘要

INTRODUCTION In recent years,with the gradual improvement of road construction,the rapid increase of the number of motor vehicles,vehicle emissions and the current poor vehicle performance,poor vehicle maintenance,higher emission factor[1]and so on,air pollution caused by the traffic issues becomes the focus of people attention[2-6].The harmful substances are gradually accumulated