Accession Number : ADP004779

Title :   Application of Physicochemical Estimation Methods to Bioaccumulation from Contaminated Sediments. II. Steady-State from Single Time-Point Observations,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

Personal Author(s) : McFarland,V. A. ; Gibson,A. B. ; Meade,L. E.

Report Date : FEB 1984

Pagination or Media Count : 18

Abstract : In this investigation asiatic clams, Corbicula fluminea, and fathead minnows, Pimephales promelas, were simultaneously exposed to industrially contaminated river sediments. A simple kinetics model and physicochemical estimation methods were applied to bioaccumulation of PCB as total di- and total tri-chlorobiphenyls. Results show that residues measured after a short exposure period together with elimination rate constants (k subscript 2) estimated from octanol/water partition coefficients (K subscript ow) can be used to approximate steady-state nonequilibrium tissue concentrations (C subscripts ss). Furthermore, normalization of residue data on tissue lipid content made comparisons of bioaccumulation between these dissimilar species possible.

Descriptors :   *BIOASSAY, *CHEMICAL ANALYSIS, *CONTAMINANTS, *CLAMS, *FISHES, ACCUMULATION, CONCENTRATION(CHEMISTRY), CHLORINATED HYDROCARBONS, BIPHENYL, SEDIMENTS, PHYSICOCHEMICAL PROPERTIES, KINETICS, MODELS, METHODOLOGY, ESTIMATES, TISSUES(BIOLOGY), LIPIDS

Distribution Statement : APPROVED FOR PUBLIC RELEASE