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
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB85-160356 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
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 |