The Role of Chemical Speciation in Processes Governing the Environmental Fate and Effects of Trace Metals in Estuarine and Coastal Environments

Abstract

The long-term goals of our research have been to: 1) Continue to develop and evaluate highly sensitive analytical techniques for determining the concentrations of bioactive trace metals in seawater and the extent of their complexation or chelation by natural organic ligands. 2) Further our basic understanding of the role of chemical speciation with respect to both trace metal toxicity and bio-limitation of phytoplankton within coastal and estuarine environments for a suite of bioactive trace metals--Mn, Fe, Ni, Cu, Zn, Cd and Pb. This includes the influence of organic complexation on the reactivity of these trace metals, as well as gaining insight into the production and fate of the metal chelating organic ligands. This research has been particularly complementary to that of Bill Sunda, another Harbor Processes PI, by providing the field data needed to evaluate the applicability of his laboratory studies examining the effects of these trace metals.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1998
Accession Number
ADA535233

Entities

People

  • Kenneth W. Bruland

Organizations

  • University of California, Santa Cruz

Tags

DTIC Thesaurus Topics

  • Bays
  • California
  • Chemical Speciation
  • Chemistry
  • Ecotoxicology
  • Environment
  • High Resolution
  • Marine Chemistry
  • Mass Spectrometry
  • Metals
  • Narragansett Bay
  • Oceanography
  • Phytoplankton
  • San Francisco Bay
  • Solid Phases
  • Speciation
  • Spectrometry

Fields of Study

  • Environmental science

Readers

  • Coastal Oceanography
  • Environmental Engineering
  • Marine Ecotoxicology