Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Wind Tunnel Modeling Study of the Dispersion of Sulfur Dioxide in Southern Allegheny County, Pennsylvania.
Author Ludwig, G. R. ; Skinner., G. T. ;
CORP Author Calspan Corp., Buffalo, N.Y.;Environmental Protection Agency, Philadelphia, Pa. Region III.
Year Published 1976
Report Number EPA/903/9-75/019;
Stock Number PB-263 421
Additional Subjects Air pollution ; Sulfur dioxide ; Wind tunnels ; Model tests ; Atmospheric motion ; Concentration(Composition) ; Sources ; Inventories ; Temperature ; Gases ; Wind direction ; Maps ; Flow visualization ; Wind velocity ; Temperature inversions ; Test facilities ; Experimental data ; Terrain ; Pennsylvania ; Allegheny County(Pennsylvania) ; Tracer studies
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB-263 421 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 160p
This report presents the results of a wind tunnel model study to determine the ground level SO2 concentrations in the Clairton Area of Allegheny County, produced by emissions from stationary sources within the area. The study was designed to provide data under flow conditions which correspond roughly to those which prevailed during an air pollution episode at Liberty Burough, Clairton in January 1973. The inventory of emission sources used in the tests correspond to the estimated 1973 full-scale inventory for 49 sources which were located within the confines of the modeled area. The test program included flow visualization studies and quantitative measurements of ground-level concentrations of a tracer gas from which full-scale SO2 concentrations could be calculated. The concentration level measurements were performed for four wind directions. At each wind direction, three wind speeds were studied with neutrally stable flow, and for one of these a temperature inversion condition was also tested. The report presents details of the model scaling laws, the test facilities, the model, test procedures, and the experimental results.