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《Environmental Science and Management》 2008-12
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Study on the Effective Factors of Road Dust During Motor Vehicle Runing

Wu Liping,Wen Kejun(Department of Environmental and Municipal Engineering,Tianjin Urban Construct Institute,Tianjin 300384,China)  
The contribution rate of the road dust to particulate concentration in the urban area is 30%~50% during motor vehicle running.Dust on the road surface is the main source.It was raised into the air and diffused again by the wheels extrusion of motor vehicles and the comprehensive role of dust such as inductive currents,hot jet and so on,causing TSP,PM10 concentrations increased.The simulation result of effection of road dust load,velocity,distance was shown that The simulation result of effection of road surface dust loading,velocity,distance off source was shown that the concentration of TSP,PM10 in the same point in the air increasesd with the concentration of road dust load and velocity,with the distance from the source increased is decreased;TSP and PM10 concentration changes with the road dust load and related linear,and gave an index correlation with velocity changes.The relationship between concentration of PM10 and the distance from source was found to be logarithm correlation.
【CateGory Index】: X513
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