Record Display for the EPA National Library Catalog


Main Title Effects of Lugworms and Seagrass on Kepone (Trade Name) (Chlordecone) Distribution in Sediment/Water Laboratory Systems.
Author O'Neill, E. J. ; Monti, C. A. ; Pritchard, P. H. ; Bourquin, A. W. ; Ahearn, D. G. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL. ;Georgia State Univ., Atlanta.
Year Published 1985
Report Number EPA/600/J-85/150 ;CONTRIB-488;
Stock Number PB86-101078
Additional Subjects Toxicology ; Water pollution ; Insecticides ; Chlorine organic compounds ; Reprints ; Kepone ; Mirex ; Lugworms ; Seagrasses ; Arenicola cristata ; Thalassia testudinum
Library Call Number Additional Info Location Last
NTIS  PB86-101078 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
Laboratory systems need to incorporate complex processes, such as bioturbation and sorption by plants, to predict the fate of a toxicant in an aquatic environment. Two experiments were designed to study the influence of lugworms (Arenicola cristata) and seagrass (Thalassia testudinum) on Kepone distribution in sediment-water microcosms. Radiolabeled Kepone was introduced into these continuous flow systems, and the dissolved and sorbed concentrations were quantified. The activities of lugworms decreased the Kepone concentration in the water and increased the concentration sorbed to sediment. Seagrasses slightly affected toxicant distribution by delaying the dissolved concentration equilibrium. The fate of Kepone was influenced by more complex processes than can be considered in simple laboratory tests. Such processes must be studied in microcosms to adequately predict toxicant distribution in natural ecosystems.