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1. REPORT No. 2. GOVERNMENT ACCESSION No. 3. RECIPIENT'S CATALOG No.

Meteorology And Its Influence On The Dispersion OfPollutants From Highway Line Sources

4. TITLE AND SUBTITLE 5. REPORT DATE

6. PERFORMING ORGANIZATION

Andrew J. Ranzieri7. AUTHOR(S)

8. PERFORMING ORGANIZATION REPORT No.

9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. WORK UNIT No.

11. CONTRACT OR GRANT No.

12. SPONSORING AGENCY NAME AND ADDRESS13. TYPE OF REPORT & PERIOD COVERED

14. SPONSORING AGENCY CODE

This work was accomplished in cooperation with the United States Department of Transportation, Federal Highway administration.15. SUPPLEMENTARY NOTES

Introduction:

A meteorological survey can be of value to the highway engineer in determining the impact on air quality of proposed highwayroutes. An analysis of the survey (1) reveals the prevailing surface wind patterns for proposed routes, (2) determines the number oflight wind days throughout the year to indicate the most unfavorable wind conditions, (3) locates areas of potentially high pollutantconcentrations, (4) indicates certain types of highway designs which may disperse the pollutants more efficiently and (5) determinesthe most favorable meteorological route. In addition, wind speed and direction, and the stability of the atmosphere can be used in ahighway line source dispersion model to estimate air pollution concentrations.The purpose of this report is to present to the highway engineer the basic fundamentals of meteorology and their effect on pollutantconcentrations on and within the highway corridor. The objectives of this report are to acquaint the highway engineer with:(1) The general relationship between meteorology and air pollution.(2) The role of meteorology in the transport and dispersion of air pollutants.(3) A method to estimate the surface stability of the atmosphere.(4) Meteorological surveys; the instrument used, and the proper instrument exposure for measuring the surface winds.(5) Important meteorological factors that should be considered in route location.

16. ABSTRACT

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http://www.dot.ca.gov/hq/research/researchreports/1972/72-11.pdf19. DRI WEBSITE LINK

This page was created to provide searchable keywords and abstract text for older scanned research reports.November 2005, Division of Research and Innovation

72-11.pdf20. FILE NAME