Impact of Vehicle Emissions on PM2.5 of Qixianling National Control Atmospheric Sub-station in Dalian Hi-tech District
In order to discuss the impact of traffic conditions on PM2.5 emissions of vehicles,a quantitative relationship model between vehicle emissions and PM2.5 was established through data collection.It showed that the traffic status was an important factor affecting the total emissions of vehicles.Under different traffic conditions,the PM2.5 emissions of vehicles varied greatly.Under severe traffic congestion,the PM2.5 emissions were 6.45 times of those under smooth traffic conditions.Based on this,combined with GIS data,the PM2.5 emissions of 10 roads around Qixianling National Control Atmospheric Sub-station in Dalian Hi-tech District were given,and the causes of PM2.5 emissions were simulated with meteorological factors,and some management and control suggestions were given.
vehicle emissiontraffic statedynamic emissioncause of PM2.5quantitative model
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