Metal-Complexing Ligands and Metal Speciation in Sediment Porewaters: Implications for Sediment/Water Exchange and Water Column Speciation

Abstract

Our long-term goals are to determine the role that complexation and speciation play in the sediment/water exchange of metals in estuarine and coastal locations, and the importance of metalcomplexing ligands fluxing from estuarine porewaters to water column metal speciation on local, regional, and global scales. Our scientific objectives are to determine: (1) the extent of complexation and the speciation of selected trace metals in bottom waters and sediment porewaters; (2) concentrations and strengths of metalcomplexing ligands in bottom waters and sediment porewaters; (3) the magnitude and direction of the benthic flux of metals and their ligands; and (4) the persistence of the ligands fluxing out of porewaters into overlying bottom waters and their degradation and removal processes.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1998
Accession Number
ADA537440

Entities

People

  • David J. Burdige
  • John R. Donat

Organizations

  • Old Dominion University

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Arc Lamps
  • Bays
  • Bottom Waters
  • Catalytic Oxidation
  • Chemical Speciation
  • Chemistry
  • Chesapeake Bay
  • Continental Shelves
  • Degradation
  • Electronic Mail
  • Light Sources
  • Molecular Weight
  • Optical Properties
  • Sediments
  • Speciation
  • Water

Fields of Study

  • Environmental science

Readers

  • Environmental Engineering