Trace Metal and Nutrient Cycling in San Francisco Bay

Abstract

The long term goals of this project are to examine the influence of metal flux (primarily Cu, Cd, Co, Mn and Fe) from sediments on the concentration of dissolved metals in the coastal zone and embayments. The processes that control trace metal exchange across the sediment-water interface within coastal environments regulate the concentration of dissolved, bioactive metals in the water column. These processes include variations in the relative influence of transport mechanisms (diffusion versus bio-irrigation), microbial activity (anaerobic versus aerobic respiration), as well as geochemical reactions (redox reactions, precipitation, complexation and adsorption) that regulate the behavior of dissolved metals in pore waters. All of these processes are controlled by the activity and composition of the sediment community. The role of organic carbon remineralization on trace metal mobility at a biologically active interface is, therefore, the focus of this study.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1997
Accession Number
ADA629376

Entities

People

  • Kenneth H. Coale
  • Kenneth S. Johnson

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bays
  • Bottom Waters
  • Boundaries
  • Boundary Layer
  • California
  • Chemical Analysis
  • Deployment
  • Electron Acceptors
  • Environment
  • Food Chains
  • High Resolution
  • Measurement
  • Oxidation Reduction Reactions
  • Particles
  • San Francisco Bay
  • United States
  • Water

Fields of Study

  • Environmental science

Readers

  • Environmental Engineering
  • Marine Ecotoxicology

Technology Areas

  • Biotechnology
  • Biotechnology - Bioremediation