Record Display for the EPA National Library Catalog


Main Title Computerized Risk and Bioaccumulation System (Version 1.0).
Author Lee, H. ; Winsor, M. ; Pelletier, J. ; Randall, R. ; Bertling, J. ;
CORP Author Environmental Research Lab., Narragansett, RI.
Publisher Nov 91
Year Published 1991
Report Number EPA/600/3-91/069 ;ERLN-N196;
Stock Number PB92-114164
Additional Subjects Shellfish ; Bioaccumulation ; Organic wastes ; Carcinogens ; Expert systems ; Cancer ; Risk ; Mathematical models ; Public health ; Water pollution effects(Humans) ; Food consumption ; Computer applications ; Installing ; Toxicology ; Thermodynamics ; Kinetics ; Manuals ; CRABS computer program
Library Call Number Additional Info Location Last
NTIS  PB92-114164 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 27p
The Computerized Risk And Bioaccumulation System (CRABS, Version 1.0) is an expert system that predicts tissue residues of fifteen neutral organic pollutants in sediment-dwelling organisms and the human cancer risk from consumption of the contaminated shellfish. Bioaccumulation from bedded sediment can be predicted from the thermodynamic partitioning, first-order kinetic, or toxicokinetic model. All the models can predict steady-state tissue residues while the two kinetic models can predict non-steady-state uptake or elimination. CRABS then predicts the lifetime human cancer risk from consumption of clams and other non-mobile sediment-dwelling organisms containing the predicted (or measured) tissue residue. The linearized multistage model is used to predict cancer risk for a single pollutant from a single species diet. The program guides the user in estimating shellfish consumption rates if no site-specific rates are available. CRABS is designed to promote thorough documentation of the assumptions and data as well as to error check the entered values.