Monitoring results at heavy traffic sites show that the present NO2 ambient air concentrations are clearly higher than the annual limit value for NO2 air quality of 40 micro g/m3 coming into effect in 2010 even though a distinct decline of NO(x) concentration has been observed at heavy urban traffic sites over the last years. This is attributed to the steep abatement of NO concentrations, whereas the NO2 concentration declines far slower or even stays unchanged. A box model has been designed to analyse the behaviour of NO2 in a street canyon without complex three-dimensional dynamic chemistry simulations. Simulations with a box model with comprehensive chemistry show the fractional contribution of NO2 to total NO2 at Stuttgart for a heavily trafficked street location.


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    Titel :

    Model based source estimation of roadside concentration of NO2 at Stuttgart, Germany


    Beteiligte:
    Niederau, Arnold (Autor:in) / Kessler, Christoph (Autor:in) / Dünnebeil, Frank (Autor:in) / Lambrecht, Udo (Autor:in) / Weese, Udo (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    3 Seiten, 2 Bilder, 3 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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