Toxicological and Bioaccumulation Testing of Dredged Material in Confined Disposal Facilities Using Plants and Worms

Abstract

Contaminants in dredged material of confined disposal facilities (CDFs) can move from substrates into food webs because of their contact with CDF-colonizing or -inhabiting plants and animals, and as such cause unacceptable risks outside the CDF. The primary goal of this technical note is to provide guidance on how to determine exposure-based effects on index and other species, and how to relate these effects to the fates of contaminants in food chains. The toxicity of dredged material from CDFs and the bioaccumulation of contaminants from this material were determined in test species. The plants Cyperus Esculentus (yellow nutsedge) and Cynodon Dactylon (common bermudagrass) and the invertebrates Eisenia Fetidan (earthworm) and Enchytraeus Crypticus (enchytraeid worm) were used as test organisms. At a later stage, exposure-based effects evaluation and interpretive guidance will be provided for effective management of contaminants to minimize unacceptable risks in CDFs and for beneficial use of dredged material projects.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2001
Accession Number
ADA395079

Entities

Organizations

  • Engineer Research and Development Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Animals
  • Cells
  • Control
  • Ecotoxicology
  • Environmental Pollutants
  • Environmental Protection
  • Great Lakes
  • Groundwater
  • Habitats
  • Materials
  • North America
  • Organic Materials
  • Risk Analysis
  • Solid Waste
  • Test Methods
  • Toxicity
  • Wildlife

Fields of Study

  • Environmental science

Readers

  • Agricultural Chemistry/Soil Science
  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering