Record Display for the EPA National Library Catalog


Main Title Application of Factor Analysis to Source Apportionment of Aerosol Mass.
Author Liu, Chung-King ; Roscoe, Bradley A. ; Severin, Kathryn G. ; Hopke, Philip K. ;
CORP Author Illinois Univ. at Urbana-Champaign. Inst. for Environmental Studies.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1981
Report Number EPA-68-02-3449; EPA-600/J-82-143;
Stock Number PB82-248022
Additional Subjects Air pollution ; Particles ; Mass ; Factor analysis ; Industrial wastes ; Combustion products ; Sources ; Exhaust emissions ; Reprints ; Target transformation factor analysis ; Air quality ; Regional air pollution study ; Saint Louis(Missouri)
Library Call Number Additional Info Location Last
NTIS  PB82-248022 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
As part of the development of receptor models that can be employed in air quality management, the application of target transformation factor analysis (TTFA) has been under active investigation. This method has the advantage of requiring limited a priori knowledge of the number or elemental composition of the sources contributing to the observed airborne particulate composition. The approach has been applied to aerosol composition data taken from the Regional Air Pollution Study (RAPS) of St. Louis, MO. The fine fraction at site 108 near Granite City, Illinois for July and August 1976, was examined in this study. In the data, secondary sulfate aerosol particles accounted for 48% of the mass of the average sample. Motor vehicle emissions accounted for another 29%. Flyash/soil, smelter, and an unidentified source accounted for the remaining particulate mass.