||An assessment of sediments from the Upper Mississippi River : final report - June 1997.
||Environmental Protection Agency, Washington, DC. Office of Water. ;Department of the Interior, Washington, DC.
|| U.S. Dept. of the Interior, Office of Water,
||EPA 823-R-97-005; EPA-DW14935486-01-0
River sediments--Mississippi River. ;
Contaminated sediments--Mississippi River. ;
Water resources development--United States
United States.--Bureau of Reclamation ;
Saint Croix River ;
Bottom sediments ;
Water pollution effects ;
Aquatic ecosystems ;
Benthic fauna ;
Biological communities ;
Ecological concentration ;
Environmental transport ;
Water pollutants ;
Polycyclic aromatic hydrocarbons ;
Polychlorinated biphenyls ;
Aliphatic hydrocarbons ;
Environmental fate ;
Hyalella azteca ;
Lumbriculus variegatus ;
UMR(Upper Mississippi River)
||Region 1 Library/Boston,MA
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||1 v. (various pagings) : ill. ; 28 cm.
This project was designed to evaluate the current status of sediments in the UMR by: (1) measuring the concentrations of contaminants in sediments of the UMR, (2) evaluating the toxicity of sediments collected from the river, (3) determining the bioaccumulation of contaminants from UMR sediments using field-collected and laboratory exposured oligochaetes, and (4) determining the benthic community structure in fine-grain sediments within the river. Chapter 1 of this report describes whole-sediment toxicity tests which were conducted for 28 days with the amphipod Hyalella azteca. Chapter 2 describes the bioaccumulation of contaminants from sediments using field-collected oligochaetes and 28-day bioaccumulation studies conducted in the laboratory with the oligochaete Lumbriculus variegatus. Chapter 3 assesses the benthic community in all 24 C samples.
"June 1997." "EPA 823-R-97-005." Includes bibliographical references. U.S. Environmental Protection Agency.