Record Display for the EPA National Library Catalog


Main Title WASTOX (Water Quality Analysis Simulation for Toxics), a Framework for Modeling the Fate of Toxic Chemicals in Aquatic Environments. Part 2. Food Chain.
Author Connolly, J. P. ; Thomann, R. V. ;
CORP Author Manhattan Coll., Bronx, NY. Dept. of Environmental Engineering and Science.;Environmental Research Lab., Gulf Breeze, FL.
Year Published 1985
Report Number EPA/600/4-85/040;
Stock Number PB85-214435
Additional Subjects Mathematical models ; Food chains ; Aquatic animals ; Aquatic biology ; Chemical compounds ; Exposure ; Concentration(Composition) ; Natural resources ; Water supply ; Transport properties ; Ecology ; Toxicology ; Computer programs ; Computer programming ; Lake Michigan ; James River ; Water quality ; Toxic substances ; WASTOX models ; Water pollution effects(Animals) ; Path of pollutants ; Kepone ; Polychlorinated biphenyls ; Bioaccumulation ; Ec
Library Call Number Additional Info Location Last
NTIS  PB85-214435 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 63p
A food chain bioaccumulation mathematical framework was developed as part of a broader framework for modeling the fate of toxic chemicals in natural water systems, entitled WASTOX. A user's guide for WASTOX (PB85-152882) was published in August 1984. The food chain component of WASTOX described here is a generalized model for estimating the uptake and elimination of toxic chemicals by aquatic organisms. Uptake and elimination rates are related to the bioenergetic parameters of the species encompassed in either a linear food chain or a food web. Concentrations are calculated as a function of time and age for each species included. Exposure to the toxic chemical in food is based on a consumption rate and predator-prey relationships that are specified as a function of age. Exposure to the toxic chemical in water is functionally related to the respiration rate. Steady-state concentrations may also be calculated. Food chain exposure to chemicals may be specified by the user of the model or may be taken directly from the values calculated by the exposure concentration component of WASTOX. Migratory species, as well as nonmigratory species, may be considered. The model has been successfully used to model Kepone in the James River striped bass food chain and PCBs in the Lake Michigan lake trout food chain and the Saginaw Bay, Lake Huron yellow perch food.