||Target Transformation Factor Analysis as an Aerosol Mass Apportionment Method: A Review and Sensitivity Study (Journal Version).
Hopke, P. K. ;
||Illinois Univ. at Urbana-Champaign. Inst. for Environmental Studies.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Atmospheric diffusion ;
Mathematical models ;
Computerized simulation ;
Statistical analysis ;
Air pollution control ;
Point sources ;
Path of pollutants
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Over the past several years, a multivariate receptor model called Target Transformation Factor Analysis (TTFA) has been applied to various problems of environmental source resolution. In recent reports on the analysis of data sets with known structure, good results were obtained. In order to further test the TTFA approach, additional simulated data sets have been created with varying degrees of collinearity of the source profiles and normally distributed uncertainty. The effect of the collinearity is to restrict the number of resolvable sources. The analytical error affects the identification of the number of sources and development of accurate profiles. (Copyright (c) 1988 Pergamon Press.)