Research highlights ► Using Hungarian data, the paper shows that traffic dynamics strongly influence emissions and road runoff loads of Cu and Zn. ► The paper identifies the characteristic Cu/Zn ratios for urban and motorway runoff. ► A quarter of emitted brake wear material becomes entrained by rainfall–runoff.

    Abstract This paper estimates the traffic-related heavy metal emissions and rainfall–runoff loads in Hungary for 2008 using the results of two rainfall–runoff sampling programs. Based on the metal concentrations found in runoff samples, distinct Cu/Zn ratios are identified for urban and motorway traffic. The former being higher than the latter reflects the effect of more frequent brake application. Runoff Cu/Zn values from field samples are compared to those from various estimation scenarios to evaluate the latter and it is found that, as a rule-of-thumb, about 25% of the emitted brake wear material becomes entrained by rainfall–runoff. Based on the comparison of Pb/Cu ratios derived from the load estimation and the road runoff samples, the Pb emissions appear to be underestimated by an order of magnitude.


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    Titel :

    Refinement of national-scale heavy metal load estimations in road runoff based on field measurements


    Beteiligte:
    Budai, Peter (Autor:in) / Clement, Adrienne (Autor:in)


    Erscheinungsdatum :

    2010-01-01


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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