Bioassays on Illinois waterway dredged material. Final report
Sediment from the Illinois Waterway navigation channel is hydraulically dredged by the US Army Engineer District, Rock Island, and placed in the nearshore environment via pipeline. Water returning to the river can have a high-suspended solids load approaching fluid mud consistency. There is a concern that this return water may exceed the State of Illinois water quality standards for ammonia and have adverse effects on aquatic life. To address these concerns, composite sediment samples and site water collected from selected sites in the Illinois Waterway were evaluated in toxicity tests. Acute (48-hr) toxicity tests were conducted with two species, Pimephales promelas (the fathead minnow) and Daphnia magna (a freshwater cladoceran). A chronic (21-day) toxicity test was also conducted using Daphnia magna. Animals were exposed separately to different concentrations of filtered and unfiltered elutriates prepared from Acute, Cadmium, Daphnia magna, Pimephales promela, Ammonia, Chronic, Elutriate, Sediment, Bioassay, Cladoceran, Fathead minnow. Illinois Waterway edged material. Total ammonia concentrations were measured in all tests and the un-ionized fraction was calculated by adjusting for temperature and pH. Tests were conducted at the US Army Engineer Waterways Experiment Station, Vicksburg, MS. In addition, as part of an interlaboratory effort, a 48-hr acute toxicity test with Pimephales pomelas fry was conducted concurrently by the Hygienic Laboratory of the University of Iowa, Des Moines, IA.
- Research Organization:
- Army Engineer Waterways Experiment Station, Vicksburg, MS (United States). Environmental Lab.
- OSTI ID:
- 6524897
- Report Number(s):
- AD-A-261923/7/XAB; WES/MP/EL-92-13
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
DREDGE SPOIL
TOXICITY
WATER POLLUTION
SEDIMENTS
BIOASSAY
AMMONIA
ANIMALS
AQUATIC ECOSYSTEMS
CADMIUM
COORDINATED RESEARCH PROGRAMS
DAPHNIA
FATHEAD MINNOW
ILLINOIS
IOWA
NAVIGATION
PH VALUE
PIPELINES
QUALITY ASSURANCE
RIVERS
SOLIDS
STANDARDS
US DOD
WATER QUALITY
AQUATIC ORGANISMS
ARTHROPODS
BRANCHIOPODS
CRUSTACEANS
DEVELOPED COUNTRIES
ECOSYSTEMS
ELEMENTS
ENVIRONMENTAL QUALITY
FISHES
HYDRIDES
HYDROGEN COMPOUNDS
INVERTEBRATES
METALS
NATIONAL ORGANIZATIONS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NORTH AMERICA
POLLUTION
RESEARCH PROGRAMS
STREAMS
SURFACE WATERS
US ORGANIZATIONS
USA
VERTEBRATES
560300* - Chemicals Metabolism & Toxicology
540250 - Environment
Terrestrial- Site Resource & Use Studies- (1990-)
540350 - Environment
Aquatic- Site Resource & Use Studies- (1990-)