MICRO POLLUTION ALONG MOTORWAYS: AN EVALUATION

This report summarizes a number of research reports on the micro pollution, mainly caused by road traffic, along motorways in the Netherlands. It was written by order of the Road and Hydraulic Engineering Division (DWW) of the Dutch Department for Public Works and Water Management (Rijkswaterstaat). Micro pollution implies pollution of the soil, surface water, and groundwater by micro contaminants such as heavy metals and polycyclic aromatic hydrocarbons (PAH). By using a summary of the relevant environmental legislation and of the possible measures to be taken, a proposal is made to how to approach this problem. The size of the mass fluxes as a result of wind dispersion or run-off turns out to depend particularly on the type of asphalt. There is also a clear shift to be seen from dispersion by wind to dispersion by run-off. The mass fluxes hardly show any dependence on traffic volume. By using emission data a mass balance on a national scale was conceived. From this it is concluded that a major part of the emitted substances is scattered diffusely. The construction of a porous asphalt top layer emerges as the most effective measure to reduce micro pollutions. This report has a Dutch version: Microverontreinigingen langs rijkswegen: een evaluatie.

  • Corporate Authors:

    DIENST WEG- EN WATERBOUWKUNDE (DWW)

    VAN DER BURGHWEG 1
    DELFT,   Netherlands  2628 CS
  • Authors:
    • Boland, M
  • Publication Date: 1995-1

Language

  • English

Media Info

  • Features: References;
  • Pagination: 64 p.
  • Serial:
    • DWW WERKDOCUMENT
    • Issue Number: W-DWW-95-735
    • Publisher: DIENST WEG- EN WATERBOUWKUNDE (DWW)

Subject/Index Terms

Filing Info

  • Accession Number: 00714284
  • Record Type: Publication
  • Source Agency: DIENST WEG- EN WATERBOUWKUNDE (DWW)
  • Files: ITRD
  • Created Date: Dec 27 1995 12:00AM