Atmospheric aerosols are the suspended particulate components of the atmosphere, which are produced directly from the emissions of particulate matter of different origins and generated from gaseous precursors. The variety of chemical and 30 physical processes of aerosol formation provides a large diversity of their microphysical and optical properties. A significant variation of aerosol properties has been observed in the industrial urban areas. Anthropogenic aerosols affect the temperature profile, play important role as a cloud condensation nuclei, impact the hydrologic cycle, through changes in cloud cover, cloud properties and precipitation.
The particulate matter produced by road transport can be divided into exhaust emission source and non-exhaust emission source. The emission source of vehicle non-exhaust particulate matter includes brake wear, tire wear, road wear and road dust, among which road dust is an indirect source.
This report presents the results of the analysis and systematization of the available studies on particulate matter air pollution from road transport.
Mots clés : aerosol|non-exhaust particulate matter|exhaust emission|climate
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