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OLS Field Name OLS Field Data
Main Title Testing and Evaluation of TOX-SCREEN Model.
Author Bicknell, B. R. ; Boutwell, S. H. ; Watson, D. B. ;
CORP Author Anderson-Nichols and Co., Inc., Palo Alto, CA.;Environmental Research Lab., Athens, GA.
Year Published 1985
Report Number EPA-68-03-3116; EPA/600/3-85/001;
Stock Number PB85-160356
Additional Subjects Chemical compounds ; Mathematical models ; Environmental surveys ; Transport properties ; Air pollution ; Water pollution ; Sources ; Volatility ; Assessments ; Adsorption ; Leaching ; Biodeterioration ; TOX-SCREEN models ; Toxic substances ; Path of pollutants ; State of the art ; Land pollution
Library Call Number Additional Info Location Last
NTIS  PB85-160356 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 137p
Abstract The TOX-SCREEN model, which was developed recently by the U.S. EPA Office for Toxic Substances, is a screening level, multimedia model designed to provide rapid assessment of the long-term tendency of toxic chemicals to accumulate in air, surface water, and soil. TOX-SCREEN simulates pollutant fate and transport by considering the release and dispersion of chemicals into the air, water, and soil; atmospheric deposition; volatilization; adsorption; leaching; and chemical-biological degradation. Transport of pollutants across media interfaces is specified by atmospheric deposition velocities, mass transfer coefficients, and mass loading parameters. The model assumes a generic positioning of surface water bodies and contaminated land areas with respect to atmospheric pollutant sources. In this study, an evaluation of TOX-SCREEN to determine its ability to perform reliable screening of chemicals was conducted. Evaluation included a review of the TOX-SCREEN processes and models relative to the current state-of-the-art methods, a comparison of TOX-SCREEN results with observed data and with predictions of other models, and a sensitivity analysis of selected input parameters.
PUB Date Free Form Jan 85
Category Codes 13B; 68
NTIS Prices PC A07/MF A01
Primary Description 600/01
Document Type NT
Cataloging Source NTIS/MT
Control Number 511621719
Origin NTIS
Type CAT