Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Climatic Data on Estimated Effective Chimney Heights in the United States.
Author Holzworth, George C. ;
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC. Meteorology and Assessment Div.
Year Published 1977
Report Number EPA/600/J-77/154;
Stock Number PB-298 521
Additional Subjects Air pollution control ; Chimneys ; Plumes ; Height ; Temperature ; Wind velocity ; Numerical solution
Library Call Number Additional Info Location Last
NTIS  PB-298 521 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 10p
Plume rise calculations are based on the equations of Briggs (1975) for use with variable vertical profiles of temperature and wind speed. Results are presented for small and large chimneys, based on five years of twice-daily rawinsondes throughout the contiguous United States. In addition to effective chimney heights, data are also generated on the frequencies of plume center-lines below, within, or above an inversion, and when they were reached by the afternoon mixing height. The data show quantitatively that initially the effluent from large chimneys tends to remain airborne longer than from small chimneys.