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Modeling Effects of Toxicants on Aquatic Systems

by S. M. Bartell, Oak Ridge Natl Lab, Environmental, Sciences Div, Oak Ridge, TN, USA,
R. V. O'Neill, Oak Ridge Natl Lab, Environmental, Sciences Div, Oak Ridge, TN, USA,
R. H. Gardner, Oak Ridge Natl Lab, Environmental, Sciences Div, Oak Ridge, TN, USA,



Document Type: Proceeding Paper

Part of: Water for Resource Development

Abstract:

Potential effects of chemicals on biomass production in aquatic systems are extrapolated from laboratory toxicological assays. The extrapolation requires that the effect of acute toxicity data be expressed as changes in growth parameters of species in a model (SWACOM). The model simulates seasonal production of a biomass in a dimictic lake. Uncertainties concerning mode of chemical action and extrapolation from the laboratory to natural systems are explicitly retained in the calculations. Effects are estimated as probabilities of occurrence of predefined endpoints.

Subject Headings: Aquatic habitats | Toxicity | Renewable energy | Biomass | Water pollution | Lakes | Uncertainty principles

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