Record Display for the EPA National Library Catalog


Main Title Bioassessment Methods for Determining the Hazards of Dredged Material Disposal in the Marine Environment.
Author Gentile, J. H. ; Pesch, G. G. ; Scott, K. J. ; Nelson, W. ; Munns, W. R. ;
CORP Author Environmental Research Lab., Narragansett, RI. ;Woods Hole Oceanographic Institution, MA. ;Science Applications International Corp., Narragansett, RI.
Publisher c1991
Year Published 1991
Report Number EPA/600/D-91/023 ;ERLN-1209;
Stock Number PB91-176768
Additional Subjects Ocean disposal ; Marine biology ; Dredge spoil ; Biological effects ; Water pollution effects ; Sediments ; Ecosystems ; Bioaccumulation ; Dredging ; Toxic substances ; Exposure ; Waste management ; Biota ; Assessments ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB91-176768 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 19p
Approximately 325 million cu m of sediment are dredged annually for navigation purposes in the United States. Of this, 46 million cu m are disposed of annually in the ocean. Decisions regarding the ocean disposal of dredged material result, in large part, from bioassessment-based estimates of contaminant exposure and ecological impacts. Predictions of impacts for an individual dredging project are estimated from laboratory determinations of the magnitude, bioavailability, bioaccumulation, and hazards (toxicity) of dredged material contaminants. Disposal site management of individual and multiple dredging projects requires monitoring for contaminant transport, availability and accumulation in biota, and the hazards to ecologically and commercially important populations. Because of their importance, suites of bioassessment methods representing several levels of biological organization have been proposed for predicting and assessing the hazards resulting from the ocean disposal of dredged material.