Record Display for the EPA National Library Catalog


Main Title St. Louis Dispersion Study. Volume II. Analysis.
Author McElro, James L. ; Pooler, J, Francis ;
CORP Author National Air Pollution Control Administration, Arlington, Va.
Year Published 1968
Report Number NAPCA-Pub-AP-53;
Stock Number PB-190 255
Additional Subjects ( Atmospheric motion ; Tracer studies) ; Diffusion ; Particles ; Fluorescence ; Zinc compounds ; Cadmium sulfides ; Theodolites ; Sampling ; Mathematical analysis ; Stability ; Urban areas ; Missouri ; Air pollution ; Graphs(Charts) ; Eddies ; St Louis(Missouri)
Library Call Number Additional Info Location Last
NTIS  PB-190 255 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 56p
The primary analyses performed on data collected during low-level tracer experiments conducted over metropolitan St. Louis, Missouri, are described. Values of dispersion parameters derived from the tracer data are related to readily derived or measured meteorological indices of turbulence. The results are graphically presented in terms of best-fit curves as functions of downwind distance and travel time. Comparisons are made with the results of previous diffusion experiments conducted over relatively uncomplicated terrain in open country. It is concluded that for low-level point sources the urban area affects cross-wind dispersion primarily by enhancing the initial size (i.e., close to the source) of the plume. (Author)