Mobile sources are significant contributors to ambient fine particulate matter (PM2.5). An important method for resolving the mobile source contribution is chemical mass balance (CMB) receptor modelling, which requires chemically speciated source profiles to estimate source contributions. This paper examines similarities and differences in US mobile source PM2.5 profiles containing data for elements, ions, elemental (EC) and organic carbon (OC) and, in some cases, speciated organics. Characteristics of the data include variability in the relative contributions of elements and ions among supposedly similar sources and the wide range of elemental to organic carbon ratios (0.60 +/- 0.53 to 1.42 +/- 2.99) for light-duty gasoline vehicles (LDGVs), indicating LDGVs may be significant sources of EC emissions. Different populations of the same class of emitters also exhibited considerable variablity in the relative emissions of other species, suggesting caution be exercised when selecting and using receptor models to apportion the mobile source contribution to PM2.5.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Comparison and evaluation of chemically speciated mobile source PM2.5 profiles


    Additional title:

    Beitrag mobiler Quellen zur Partikelemission


    Contributors:

    Published in:

    Publication date :

    2001


    Size :

    8 Seiten, 16 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Comparison and evaluation of chemically speciated mobile source PM2,5 profiles

    Gillies,J.A. / Gertler,A.W. / Desert Res.Inst.,US | Automotive engineering | 2001


    The influence of speciated diesel fuel composition on speciated particulate SOF emissions

    Andrews,G.E. / Ishaq,R.B. / Farrar-Khan,J.R. et al. | Automotive engineering | 1998


    The Influence of Speciated Diesel Fuel Composition on Speciated Particulate SOF Emissions

    Andrews, G. E. / Farrar-Khan, J. R. / Williams, P. T. et al. | SAE Technical Papers | 1998


    The Influence of Speciated Diesel Fuel Composition on Speciated Particulate SOF Emissions

    Andrews, G. E. / Ishaq, R. B. / Farrar-Khan, J. R. et al. | British Library Conference Proceedings | 1998