This paper is concerned with uncertainties involved in projecting air quality. Future automotive emissions were estimated by a method recommended by EPA. Projections were made for the locations reported to have the highest ambient air concentrations of each pollutant. The sensitivity of the projections to several input parameters was determined. The uncertainty in projection of air quality due to the use of a maximum, once-per-year concentration is large. The effects of uncertainties in growth rates and fraction of emissions attributed to the automobile were also sizeable. The effect of 1975 interim automative emission standards on projected air quality was negligible when compared with projected air quality based on the previous Federal automotive emission standards for 1975.


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    Title :

    Ambient air quality and automotive emission control


    Additional title:

    Qualitaet der Umgebungsluft und die Ueberwachung von Autoabgasen


    Contributors:
    Daniel, W.A. (author) / Heuss, J.M. (author)


    Publication date :

    1974


    Size :

    6 Seiten, 10 Bilder, 2 Tabellen, 19 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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