AUTOMOTIVE CO EMISSION TRENDS DERIVED FROM MEASUREMENTS IN HIGHWAY TUNNELS

Motor-vehicle tunnels provide a means by which the measurement of automotive emissions trends can be made straightforward, since the confounding effects of weather have been removed. This paper reports a 16-year trend in motor-vehicle CO emission rates in highway tunnels showing a nearly fivefold decrease in CO emission rates from light- duty vehicles (mostly automobiles). Meanwhile, or at least from 1979 through 1992, no significant change was observed in CO emission rates from heavy-duty (mostly diesel) vehicles. A 1983 report similarly recorded the decline in Pb emissions from light-duty vehicles commensurate with reduction in fuel Pb content.

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  • Corporate Authors:

    Air & Waste Management Association

    One Gateway Center, 3rd Floor, 420 Fort Duquesne Boulevard
    Pittsburgh, PA  United States  15222
  • Authors:
    • Pierson, W R
  • Publication Date: 1995-10

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00715902
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Jan 31 1996 12:00AM