26th International Vienna Motor Symposium
Passenger Car Emissions: A Problem Solved?
Authors
Dr. N. Metz, Dr.rer.nat. J. Theis, BMW Group, Munich
Year
2005
Print Info
Fortschritt-Berichte VDI, Reihe 12, Nr. 595
Summary
For carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx) and particulate matter (PM) the progress of the emission factors for gasoline and diesel passen¬ger cars since 1970 up to the present is described. Additionally, all emission sources are quanti-fied and the share of road transport in the year 2000 is given. With a forecast model the emissions of passenger car traffic are estimated until the year 2030. Together with emis-sions of all other sources the effect on the air quality in German cities is analyzed for kerbside and urban background stations. For CO and HC the air quality data are already today well below the threshold values of future air quality standards. However, in the case of NO2 and PM10 short dated exceedances of air quality standards may occur during ad-verse meteorological situations. Measures for further improvements including technical measures within the engine and after treatment technologies as well as measures to im-prove fuel quality, fluency of city traffic and street cleaning strategies will be discussed.
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