Evaluation of an open-path fourier-transform infrared spectrometer for monitoring vehicle emissions over a suburban roadway intersection Metadata

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  • Main Title Evaluation of an open-path fourier-transform infrared spectrometer for monitoring vehicle emissions over a suburban roadway intersection


  • Author: Einfield, W.
    Creator Type: Personal
    Creator Info: Sandia National Labs., Albuquerque, NM (United States). Environmental Characterization and Monitoring Dept.


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)


  • Name: Sandia National Laboratories
    Place of Publication: Albuquerque, New Mexico
    Additional Info: Sandia National Labs., Albuquerque, NM (United States)


  • Creation: 1997-05-01


  • English


  • Content Description: The ability of an open-path, fourier-transform infrared spectrometer to detect vehicle exhaust emissions approximately 3 meters above the roadway surface at a busy Albuquerque suburban intersection was evaluated in this study. Multiple measurements of carbon monoxide and carbon dioxide were carried out over pathlengths up to 100 meters during the morning commute period on multiple days in the summer of 1993. The carbon monoxide to fuel carbon ratio was computed from all spectral data in order to derive a vehicle fleet average ratio. The data were determined to be normally distributed with an overall carbon monoxide-fuel carbon ratio of 0.15. The 95% confidence interval about the mean was {+-} 0.009. Day-to-day variation of the mean ratio was determined to be on the order of 3%. The results indicate that anticipated reductions in carbon monoxide emissions following the implementation of a winter-season oxygenated fuel program could be reliably detected with an open-path fourier transform spectrometer. The periodic use of such an instrument may offer a cost-effective means of generating a city-wide carbon monoxide emission budget for vehicles sources.
  • Physical Description: 30 p.


  • Keyword: Exhaust Gases
  • Keyword: Fourier Transform Spectrometers
  • Keyword: Carbon Monoxide
  • Keyword: Vehicles
  • Keyword: Performance Testing
  • Keyword: Carbon Dioxide
  • Keyword: Infrared Spectra
  • STI Subject Categories: 02 Petroleum
  • Keyword: Experimental Data
  • Keyword: Air Pollution Monitoring


  • Other Information: PBD: May 1997


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report


  • Text


  • Other: DE97007436
  • Report No.: SAND--97-1149
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/481515
  • Office of Scientific & Technical Information Report Number: 481515
  • Archival Resource Key: ark:/67531/metadc679791


  • Display Note: INIS; OSTI as DE97007436