This report summarizes the final year of a six-year experimental study on the fate of automotive exhaust particulates in the atmosphere. A monolithic noble metal catalyst equipped car was operated on a chassis dynamometer at various steady speeds (including idle) and on the 1975 FTP cycle, with particular attention to the effects of preconditioning on sulfate emission rates. The vehicle exhaust was discharged into a dilution tube from which samples were taken for chemical and physical characterization of suspended particles. Particle characterization included total weight, weight of sulfates, size distribution, and light-scattering effects. Measurements of gaseous emission components were also made simultaneously from the vehicle tailpipe and from the dilution tube.


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    Title :

    Chemical and Physical Characterization of Automotive Exhaust Particulate Matter in the Atmosphere


    Contributors:

    Publication date :

    1976


    Size :

    127 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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