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RECORD NUMBER: 87 OF 96

OLS Field Name OLS Field Data
Main Title Toxicity of Sediments and Sediment Pore Waters from the Grand Calumet River-Indiana Harbor, Indiana Area of Concern.
Author Hoke, R. A. ; Giesy, J. P. ; Zabik, M. ; Unger., M. ;
CORP Author Environmental Research Lab.-Duluth, MN. ;Michigan State Univ., East Lansing. ;Indiana Univ. Northwest, Gary.
Publisher c1993
Year Published 1993
Report Number EPA/600/J-94/176;
Stock Number PB94-163557
Additional Subjects Toxicity ; Sediments ; Aquatic ecosystems ; Water pollution effects ; Grand Calumet River ; Invertebrates ; Exposures ; Bioassay ; Chemical analysis ; Pore pressure ; Interstitial water ; Toxicity tests ; Ammonia ; Metals ; Polycyclic aromatic hydrocarbons ; Petroleum products ; Ions ; Bicarbonites ; Reprint ; Indiana Harbor
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB94-163557 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/01/1994
Collation 29p
Abstract
The assessment of contaminated sediments is a difficult task due to the complex nature of the sediment matrix and the potential for exposure of aquatic organisms to in-place contaminants via several routes. Differential species sensitivity also precludes the completion of a meaningful environmental assessment with only one species. Therefore, a battery of assays approach with the Microtox assay, 48 hr Daphnia magna and Ceriodaphnia dubia tests and a 10-day Chironomous tentans test was used to evaluate the toxicity of sediment pore waters and whole sediments from the Grand Calumet River-Indiana Harbor, Indiana area of concern. All toxicity tests indicated that the test fractions (pore water, whole sediment) from each study site were toxic to the test species. A toxic units (TU) approach was used to compare measured TU from each assay with calculated TU based on chemical analyses of pore waters and whole sediments and the results of reference toxicant tests. Based on the results of these analyses, ammonia, polycyclic aromatic hydrocarbons, metals, petroleum hydrocarbons, and biocarbonate ion appear to be the major contaminants of environmental significance to benthic invertebrates within the study area. (Copyright (c) 1993 by Academic Press, Inc.)