Record Display for the EPA National Library Catalog

RECORD NUMBER: 30 OF 38

OLS Field Name OLS Field Data
Main Title Predictions of highway emissions by a second order closure model /
Author Teske, Milton E. ; Lewellen, W. S.
Other Authors
Author Title of a Work
Lewellen, W. S.
Binkowski, Francis S.
CORP Author Aeronautical Research Associates of Princeton, Inc., NJ.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Publisher Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Available through the National Technical Information Service [distributor],
Year Published 1979
Report Number EPA/600-4-79-013; EPA-68-02-2285; PB292703
Stock Number PB-292 703
OCLC Number 05211173
Subjects Automobiles--Motors--Exhaust gas--Mathematical models.
Additional Subjects Air pollution ; Exhaust emissions ; Mathematical models ; Highways ; Sulfur hexafluoride ; Sulfates ; Transport properties ; Boundary layer ; Wind(Meteorology) ; Graphs ; Concentration(Composition) ; Atmospheric diffusion ; Tracer studies ; Automobile exhaust
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=20015N9I.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 600-4-79-013 Headquarters Library/Washington,DC 09/26/2013
EJBD  EPA 600-4-79-013 Headquarters Library/Washington,DC 04/15/2014
EKAM  EPA 600/4-79-013 Region 4 Library/Atlanta,GA 07/08/1994
EKBD  EPA-600/4-79-013 Research Triangle Park Library/RTP, NC 08/22/2003
NTIS  PB-292 703 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation x ; 83 pages : charts ; 28 cm
Abstract
The dispersion of sulfur hexafluoride tracer and sulfate from automobile emissions in the immediate vicinity of a highway were estimated for conditions similar to those existing during the General Motors sulfate dispersion experiment conducted at a GM test track. A second-order closure model of turbulent transport in the planetary boundary layer was used to predict the steady-state dispersion under two conditions: with the mean wind and velocity component variances specified by the data or predicted with the aid of an automobile wake model. The GM measured wind data apparently suffered from low vertical velocity variance readings at the 1.5 meter height, and led to an overprediction of the SF6 levels by an average factor of 1.77 for the 18 tower collection points during the 15 test days. The correlation fell to 0.96 of the measured levels when the model also predicted the wind fields. The results indicate that close to the highway, buoyancy effects were small even in the critical case when the wind is light and aligned with the roadway.
Notes
"EPA-600/4-79-013." Prepared by Aeronautical Research Associates of Princeton, Inc., under contract 68-02-2285. "Project Officer Francis S. Binkowski." ""Feb. 1979. Includes bibliographical references.