Record Display for the EPA National Library Catalog


Main Title Time Series Analysis of Coal Data from Preparation Plants.
Author Cheng, B. H. ; Woodcock, B. ; Sargent, D. ; Gleit, A. ;
CORP Author Versar, Inc., Springfield, VA.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Year Published 1982
Report Number EPA-600/J-82-429;
Stock Number PB84-175314
Additional Subjects Coal preparation ; Regulations ; Sulfur oxides ; Time series analysis ; Desulfurization ; Standards ; Boilers ; Industrial wastes ; Statistical analysis ; Reprints ; Air pollution abatement
Library Call Number Additional Info Location Last
NTIS  PB84-175314 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
The paper gives information directed to individuals concerned with existing or proposed sulfur emission regulations. The ability of coal-fired-boiler operators to comply with emission regulations depends largely on the variability in emission rate. Because of the variability inherent in coal, the mean emission rate (in lb SO2/million Btu) must be lower than the emission standard to prevent violations. Heretofore, this problem has been analyzed by statistical techniques assuming independent (uncorrelated) data. This paper indicates that this method is inappropriate. Failure to account for correlation structure in coal data results in gross underestimation of emission violations of actual coal. Correlation in coal data should not be overlooked: the ability of each coal to meet emission regulations must be individually determined.