ACCURACY OF PREDICTION OF URBAN AIR POLLUTANT CONCENTRATIONS BY DIFFUSION MODELS

Projections of future transportation-related air quality impacts require the use of mathematical models that relate emissions to air quality. Whereas the derivation and use of such models have received much attention (at least for inert pollutants, such as CO), much less attention has been paid to questions of the interpretation of th concentrations these models predict and how the predictions relate to real atmospheric quantities. Concepts of validity and accuracy must be carefully defined for any model that is to be used in order that the predictions from the model can be properly evaluated. The purpose of this paper is to formulate the concepts of validity and accuracy for atmospheric air pollutant diffusion models and to suggest numerical experiments that can be used to test both the validity and the accuracy of the models. /Author/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/sr/sr167/sr167-004.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0360859X
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved. Presented at the Conference on the State of the Art of Assessing Transportation-Related Air Quality Impacts, Washington, D.C., October 22-24, 1975.
• Corporate Authors:

  Transportation Research Board (TRB)

  Washington, DC   
• Authors:
  • Seinfeld, John H
• Conference:
  • Conference on the State of the Art of Assessing Transportation-Related Air Quality Impacts
  • Location: Washington District of Columbia, United States
  • Date: 1975-10-22 to 1975-10-24
• Publication Date: 1976

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 34-45
• Monograph Title: Assessing transportation-related air quality impacts
• Serial:
  • Transportation Research Board Special Report
  • Issue Number: 167
  • Publisher: Transportation Research Board
  • ISSN: 0360-859X

Subject/Index Terms

• TRT Terms: Air pollution; Atmospheric interference; Chemical concentration; Experiments; Forecasting; Impact studies; Mathematical models; Optical diffusion; Pollutants; Urban transportation
• Uncontrolled Terms: Concentration
• Subject Areas: Administration and Management; Design; Highways; Operations and Traffic Management; Public Transportation; Safety and Human Factors;

Filing Info

• Accession Number: 00139650
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Sep 21 1981 12:00AM