Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluation of the Equilibrium Partition Theory for Estimating the Toxicity of the Nonpolar Organic Compound DDT to the Sediment Dwelling Organism Rhepoxynius Abronius.
Author Word, J. Q. ; Ward, J. A. ; Franklin, L. M. ; Cullinan, V. I. ; Kiesser, S. L. ;
CORP Author Battelle/Marine Research Lab., Sequim, WA.;Environmental Protection Agency, Washington, DC. Criteria and Standards Div.
Publisher Dec 87
Year Published 1987
Stock Number PB95-203865
Additional Subjects Toxicity ; Sediments ; Water pollution effects ; DDT ; Sediment-water interfaces ; Clean Water Acts ; Bioaccumulation ; Bioassay ; Marine animals ; Amphipoda ; Equilibrium partitioning theory ; Sediment quality criteria ; Rhepoxynius abronius ; Water quality criteria
Library Call Number Additional Info Location Last
NTIS  PB95-203865 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/02/1995
Collation 67p
The primary objective of the research conducted by the Battelle/Marine Research Laboratory (MRL) for the U.S. Environmental Protection Agency was to evaluate the equilibrium partitioning (EP) theory as a candidate method that would allow this extrapolation to be made. The theory may provide the theoretical basis for understanding how complex interactions between chemicals and sediment influence toxicity of the chemicals to benthic organisms. Applying EP theory to sediment quality criteria development is based on the additional assumption that the only toxic fraction of a sediment contaminant is that fraction freely dissolved within interstitial waters. This assumption permits data from water quality criteria, or other aquatic toxicity data to be used to derive sediment quality criteria. To evaluate the accuracy of EP theory in predicting the toxicity of sediment-associated nonpolar organic contaminants, three research hypotheses were examined: (1) the concentration of the contaminant in solution in the interstitial water is the primary determinant of acute toxicity, (2) the toxic concentration can be predicted from the organic carbon/water partition coefficient and the concentration of organic carbon in the sediment, and (3) the source of the organic carbon influences the toxicity.