Interactions of Mercury with Dissolved Organic Carbon in the Florida Everglades
Entry ID: USGS_SOFIA_Hg_DOC_fy04

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Summary
Abstract: This project is designed to more clearly define the factors that control the occurrence, nature, and reactivity of dissolved organic matter (DOM) in the Florida Everglades, especially with regard to the biological transformation and accumulation of mercury (Hg). The primary objectives of our research are (1) to more clearly define the factors that control the occurrence, nature and reactivity of dissolved organic matter (DOM) in the Florida Everglades, and (2) to quantify the effects of DOM on the transport and reactivity of Hg, especially with regard to the biological transformation and accumulation of mercury (Hg) in the Everglades. To meet these objectives, we have adopted a combined field/ laboratory approach. In conjunction with other research projects our field efforts are designed (1) to characterize DOM at a variety of field locations chosen to provide information about the influences of hydrology, seasonal factors (wetting and drying events) and source materials (e.g. vegetation, periphyton, peat) on the nature and amount of DOM in the system, and (2) to elucidate the roles of DOM in controlling the reactivity and bioavailability of Hg in the Everglades.

This research is relevant because of the high natural production of organic carbon in the peat soils and wetlands, the relatively high carbon content of shallow ground water systems in the region, the interactions of organic matter with other chemical species, such as trace metals, divalent cations, mercury, and anthropogenic compounds, the accumulation of organic carbon in corals and carbonate precipitates, and the potential changes in the quality and reactivity of dissolved organic carbon (DOC) resulting from land use and water management practices. Proposed attempts to return the Everglades to more natural flow conditions will result in changes to the current transport of organic matter from the Everglades Agricultural Area and the northern conservation areas to Florida Bay. In addition, the presence of dissolved organic matter is important in the production of drinking water, contributes to pollutant transport, and will influence ASR performance. Finally, interactions of mercury (Hg) with organic matter play important roles in controlling the reactivity, bioavailability and transport of Hg in the Everglades.

Related URL
Link: GET DATA
Description: Data can be downloaded from the SOFIA website


Link: VIEW EXTENDED METADATA


Link: VIEW PROJECT HOME PAGE


Geographic Coverage
 N: 26.78571 S: 25.597273  E: -80.10298  W: -80.89114

Data Set Citation
Dataset Originator/Creator: George Aiken, Dave Krabbenhoft, Bill Orem
Dataset Title: Interactions of Mercury with Dissolved Organic Carbon in the Florida Everglades
Dataset Release Date: 2005
Data Presentation Form: text files
Online Resource: http://sofia.usgs.gov/projects/merc_carbon


Temporal Coverage
Start Date: 1995-03-01
Stop Date: 2006-12-31


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA


Science Keywords
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >CONTAMINANTS    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >DISSOLVED SOLIDS    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >ORGANIC MATTER    [Definition]
SOLID EARTH >GEOCHEMISTRY >BIOGEOCHEMICAL PROCESSES    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >WETLANDS
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOTOXICOLOGY >SPECIES BIOACCUMULATION    [Definition]


ISO Topic Category
ENVIRONMENT
INLAND WATERS


Project
USGS_SOFIA >South Florida Information Access    [Information]


Access Constraints
None


Use Constraints
Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data.


Keywords
Broward County
Miami-Dade County
Palm Beach County
Central Everglades
WCA2
WCA3
Water Conservation Area 2
Water Conservation Area 3
Mercury
Biotransformation


Data Set Progress
IN WORK


Originating Center


Data Center
SOUTH FLORIDA INFORMATION ACCESS, SOUTHEAST ECOLOGICAL SCIENCE CENTER, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF THE INTERIOR    [Information]
Data Center URL: http://sofia.usgs.gov/

Data Center Personnel
Name: HEATHER S. HENKEL
Phone: 727-502-8028
Fax: 727-502-8182
Email: hhenkel at usgs.gov
Contact Address:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
600 Fourth St. South
City: St. Petersburg
Province or State: FL
Postal Code: 33701
Country: USA



Distribution
Distribution_Format: Excel
Fees: None


Personnel
GEORGE AIKEN
Role: TECHNICAL CONTACT
Phone: 303 541 3036
Fax: 303 447 2505
Email: graiken at usgs.gov
Contact Address:
U.S. Geological Survey
3215 Marine Street
City: Boulder
Province or State: CO
Postal Code: 80303
Country: USA


ALICIA ALEMAN
Role: DIF AUTHOR
Email: alicia.m.aleman at nasa.gov
Contact Address:
Goddard Space Flight Center
Code 610.2
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA


Publications/References
Haitzer, M., Aiken, G. R., Ryan, J. N.; 2002; Binding of Mercury (II) to Dissolved Organic Matter: The Role of the Mercury-to-DOM Concentration Ration; Environmental Science and Technology, v. 36, American The entire paper is available from the Environmental Science and Technology Journal web site; however, a journal subscription is required.
http://sofia.usgs.gov/publications/papers/hg_dom_binding/

Benoit, J. M., Mason, R. P., Gilmour, C. C., Aiken, G. A.; 2001; Constants for Mercury Binding by Dissolved Organic Matter Isolates form the Florida Everglades; Geochimica Et Cosmochimica Acta, v. 65 no. 24, Geochemical Society (Elsevier Science, Ltd.)
http://sofia.usgs.gov/publications/papers/k_hgbinding

Ravichandran, M, Aiken, G. R., Ryan, J. N., Reddy, M. M.; 1998; Enhanced Dissolution of Cinnabar (Mercuric Sulfide) by Dissolved Organic Matter Isolated from the Florida Everglades; Environmental, v. 32, American Chemical Society
Entire paper is available from the Environmental Science and Technology website at http://pubs.acs.org/journals/esthag/index.html
Journal membership is required for download.
http://sofia.usgs.gov/publications/papers/dislncinnabar

Reddy, M. M., Aiken, G. R.; 2001; Fulvic acid-sulfide ion competition for mercury ion binding in the Florida Everglades; Water, Air and Soil Pollution, v. 132, Kluwer Academic Publishers http://sofia.usgs.gov/publications/papers/fulvicacid

Drexel, R. Todd, Haitzer, Markus, Ryan, Joseph N., Aiken, George R., Nagy, Kathlyn L.; 2002; Mercury (II) Sorption to Two Florida Everglades Peats: Evidence for Strong and Weak Binding and Competition by Dissolved Organic Matter Released from the Peat; Environmental Science and Technology, v. 36 no.19, American Chemical Society
Entire paper is available from the Environmental Science and Technology website at http://pubs.acs.org/journals/esthag/index.html
Journal membership is required for download.

Reddy, Michael M., Aiken, George R., Schuster, Paul F., Gunthers, Charmaine; 1995; Summary of Data from Onsite and Laboratory Analyses of Surface Water and Marsh Porewater from South Florida Water Management District Conservation Areas, the Everglades, South Florida; U.S. Geological Survey; Prepared in cooperation the South Florida Water Management Districyt and the U.S. Environmental Protection Agency http://sofia.usgs.gov/publications/reports/merc_carbon

Bates, A. L., Orem, W. H., Harvey, J.. W., Spiker, E. C.; 2001; Geochemistry of Sulfur in the Florida Everglades: 1994 through 1999; USGS Open-File Report, OFR 01-007, U.S. Geological Survey
http://sofia.usgs.gov/publications/ofr/01-007/

Orem, William H., Lerch, Harry E., Rawlik, Peter; 1997; Geochemistry of Surface and Pore Water at USGS Coring Sites in Wetlands of South Florida: 1994 and 1995; USGS Open-File Report, OFR 97-454, U.S. Geological Survey
http://sofia.usgs.gov/publications/ofr/97-454

Bates, Anne L, Orem, William H., Harvey. Judson W., Spiker, Elliot C.; 2002; Tracing sources of sulfur in the Florida Everglades; Journal of Environmental Quality, v. 31 no. 1, American Society of Agronomy

The journal is published jointly by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
http://sofia.usgs.gov/publications/reports/trace_sulfur/

Hoch, A. R., Reddy, M. M., Aiken, G. R.; 2000; Calcite Crystal Growth Inhibition by Humic Substances with Emphasis on Hydrophobic Acids from the Florida Everglades; Geochimica et Cosmochimica Acta, v. 64, sevier Science Ltd.

Please contact George Aiken at graiken@usgs.gov for a copy of this paper.

Krabbenhoft, D. P., Hurley, J. P., Aiken, G. R., Marvin-DiPasquale, M., Orem, W. H., Harris, R.; 2000; Mercury Cycling in the Florida Everglades: A Mechanistic Field Study, Verh. Internat. Verein. Limnol, v. 27, E. Scheizerbart'sche Verlagsbuchhandlung

Please contact George Aiken at graiken@usgs.gov for a copy of this paper.

Ravichandran, M., Aiken, G. R., Ryan, J. N., Reddy, M. M.; 1999; Inhibition of precipitation and aggregation of Metacinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades; Environmental Science and Technology, v. 33, n. 9, American Chemical Society

Entire paper is available from the Environmental Science and Technology website at http://pubs.acs.org/journals/esthag/index.html. Journal membership is required for download.
http://sofia.usgs.gov/publications/papers/inhibitnagg

Haitzer, Markus, Aiken, George R., Ryan, Joseph N.; 2003; Binding of Mercury (II) to Aquatic Humic Substances: Influence of pH and Source of Humic Substances; Environmental Science and Technology, v. 37, n. 11, Americal Chemical Society

Entire paper is available from the Environmental Science and Technology website at http://pubs.acs.org/journals/esthag/index.html. Journal membership is required for download.
http://sofia.usgs.gov/publications/papers/bind_hg_humic

Bock, W. D.; 1971; A handbook of the benthonic foraminifera of Florida Bay and adjacent waters; Memoir, 1, Miami Geological Society

Poag, C. W.; 1981; Ecological Atlas of Benthic Foraminifers of the Gulf of Mexico; Hutchinson and Ross

Wardlaw, Bruce, editor; 2001; Paleoecological Studies of South Florida; Bulletins of American Paleontology; 361, Ithica, NY, Paleontological Research Institution

Creation and Review Dates
DIF Creation Date: 2007-01-26
Last DIF Revision Date: 2008-11-25

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