Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title CMB8: New Software for Chemical Mass Balance Receptor Modeling.
Author Lewis, C. W. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.
Publisher 1997
Year Published 1997
Report Number EPA/600/A-97/041;
Stock Number PB97-193676
Additional Subjects Air pollution monitoring ; Receptors ; Mathematical models ; Computerized simulation ; Air pollutants ; Ecological concentration ; Formats ; Algorithms ; Input output routines ; Computer systems programs ; CMB8 computer program ; Chemical mass balance ; Volatile organic compounds
Library Call Number Additional Info Location Last
NTIS  PB97-193676 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 12/22/1997
Collation 8p
The Chemical Mass Balance (CMB) method for receptor modeling of ambient air pollutants has been in use for over two decades. Changes embodied in CMB8 include (1) switch from a DOS-based to a Windows-based environment, (2) increased attention to volatile organic compounds (VOC) applications, (3) correction of some flaws in the current version (CMB7), (4) more options for input and output data formats, (5) addition of a more accurate least squares computational algorithm, (6) a new treatment of source collinearity, (7) multiple defaults for sources and fitting species, and (8) choice of fitting criteria. Details of the changes and the procedures for obtaining CMB8 are given.