CONTRIBUTIONS OF TRAFFIC EMISSIONS TO MESOSCALE OXIDES OF NITROGEN AND OZONE CONCENTRATIONS

The contributions of traffic related emissions to the long-term and short-term mesoscale concentrations of ozone and nitrogen oxides in The Netherlands are estimated by means of atmospheric transport models. Both an Eulerian grid model with simplified chemistry and a trajectory model with a more complex chemistry are used. The contribution of traffic emissions to the nitrogen oxides concentrations differs largely from its contribution to the nitrogen dioxide concentrations as a result of the non-linear nitrogen oxides chemistry (e.g. the photostationary equilibrium). On a yearly basis the contribution of national traffic emissions to the averaged concentrations in The Netherlands are 30% for nitrogen oxides and 25% for nitrogen dioxide. During winter episodes these contributions are 12-15% for nitrogen oxides and 3% for nitrogen dioxide. During a summer episode inland traffic emissions account for 35-55% of nitrogen oxides and nitrogen dioxide concentrations. The national traffic emissions have only a minor contribution (4%) to the ozone peak values observed in The Netherlands; European traffic emissions are estimated to be responsible for 26% of the ozone peak values.(A)

  • Availability:
  • Corporate Authors:

    Pergamon Press, Incorporated

    Headington Hill Hall
    Oxford OX30BW,    
  • Authors:
    • De Leeuw, FAAM
  • Publication Date: 1989

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00606474
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM