Main Title |
A pilot study on dispersion near roadways / |
Author |
Petersen, William B.
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Other Authors |
|
CORP Author |
Environmental Sciences Research Lab., Research Triangle Park, NC. |
Publisher |
Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1978 |
Report Number |
EPA-600/4-78-044 |
Stock Number |
PB-289 451 |
OCLC Number |
52971121 |
Additional Subjects |
Air pollution ;
Roads ;
Atmospheric diffusion ;
Wind velocity ;
Wind(Meteorology) ;
Concentration(Composition) ;
Mathematical models ;
Atmospheric dispersion ;
Diffusion modeling ;
Nonpoint sources ;
HIWAY model ;
Gaussian plume models
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Internet Access |
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Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-4-78-044 |
|
Headquarters Library/Washington,DC |
07/30/2014 |
EKBD |
EPA-600/4-78-044 |
|
Research Triangle Park Library/RTP, NC |
09/05/2003 |
ELBD ARCHIVE |
EPA 600-4-78-044 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
NTIS |
PB-289 451 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
vii, 23 p. : ill. ; 28 cm. |
Abstract |
High frequency wind fluctuation data were used to estimate the dispersion near roadways. The standard deviations of the wind direction and the elevation angle were computed for six averaging times. The EPA HIWAY model was modified to use these fluctuation statistics directly to estimate dispersion. The data from the General Motors Sulfate Dispersion Experiment were used in this study. In particular, the data used in this pilot study were three half-hour periods when the winds were nearly parallel with the test track. Results from analysis show that model performance was improved for parallel wind conditions when the fluctuation statistics of the wind were used to estimate dispersion. The results also show that model estimates are most sensitive to the vertical dispersion parameter. Concentrations seem to be insensitive to the horizontal dispersion parameter. |
Notes |
"August 1978." "EPA-600/4-78-044." |