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Ecosystems Research

Mark C. Gabriel

I am particularly interested in using field- and modeling-based studies to investigate the fate and transport of mercury, carbon, nitrogen and sulfur in natural systems. My primary research focus is modeling reactive nitrogen (Nr) and understanding the impacts of nitrogen biogeochemical cycling on ecosystems. I investigate the importance of land-use and climate change on the nitrogen cycle, with particular attention to the bidirectional flux of Nr and linking atmospheric, water body and watershed models.

Biographical Information

Name: Mark C. Gabriel

Title: Environmental Engineer

Contact Info:
Ecosystems Research Division
National Exposure Research Laboratory
Office of Research and Development
U.S. Environmental Protection Agency
960 College Station Road
Athens, Georgia 30605-2700

Phone: 706/355-8146
email: gabriel.mark@epa.gov


Education
Ph.D. in Civil Engineering, The University of Alabama, 2005
M.S.E. in Civil Engineering, Temple University, 2001
B.S. in Environmental Engineering Technology, Temple University, 1999


Professional Experience
Post-doctoral Environmental Engineer, USEPA ORD NERL-ERD, Athens, GA  2010-present
Lead Environmental Scientist, South Florida Water Management District, West Palm Beach, Florida, 2007-2010
Independent Federal Consultant, USDA, 2007-2010
Adjunct Professor, Palm Beach State College, Palm Beach Gardens, FL, 2009-2010
Postdoctoral Research Associate, University of Minnesota,  St. Paul, MN, 2005-2007


Professional Affiliations
Lecturer: Biological and Agricultural Engineering Department – University of Georgia
Instructor: Water Management – University of Georgia
Member: American Geophysical Union
Reviewer:  Environmental Science and Technology, Geophysical Research Letters, Atmospheric Environment, Australian Journal of Soil Research, Science of the Total Environment, The International Journal of Soil, Sediment and Water, Ecological Engineering


Selected Awards and Honors
Graduate School Research Grant, University of Alabama, 2002 
Civil Engineering Research Grant, University of Alabama, 2002
National Network for Environmental Management Studies (NNEMS) Fellowship, USEPA Region III, Environmental Services Division, 2000, 2001
 
Publications and Presentations
Gabriel, M.C., Kolka, R., Wickman, T., Nater, E., Woodruff. 2011. Latent effect of soil organic matter oxidation on mercury cycling within a southern Boreal ecosystem. Journal of Environmental Quality. In revision
Gabriel, M.C., Williamson, Brooks, S. 2011. Potential impact of rainfall on the air-surface exchange of total gaseous mercury from two common urban ground surfaces. Atmospheric Environment. 45. 1766-1774.
Axelrad, D., Lange, T., Gabriel, M.C. 2011. Mercury and Sulfur Monitoring, Research and Environmental Assessment in South Florida. Chapter 3B In 2011 South Florida Environmental Report, South Florida Water Management District, West Palm Beach, FL.
Gabriel, M.C. 2010. Scientific and Technical Knowledge Gained in Everglades Restoration (1999-2009) Restoration Coordination and Verification (RECOVER): Mercury in the Everglades: The South Florida Mercury Bioaccumulation Module and the Mercury Monitoring and Assessment Program: Gabriel, M.C., Axelrad, D., Lange, T., Dirk, L. 2009. Mercury and Sulfur Monitoring, Research and Environmental Assessment in South Florida. Chapter 3B In 2010 South Florida Environmental Report, South Florida Water Management District, West Palm Beach, FL.
Gabriel, M.C., Kolka, R., Wickman, T., Nater, E., Woodruff, L. 2009. Evaluating the spatial variation of total mercury in young-of-year yellow perch (perca flavescens), surface water and upland soil for watershed-lake systems of the southern Boreal Shield. Science of the Total Environment 407, 4117-4126.
Gabriel, M., Howard, N., Atkins, S. 2009. Annual Permit Compliance Monitoring Report for Mercury in the STAs. Appendix 5-4 In 2010 South Florida Environmental Report – Volume 1, South Florida Water Management District, West Palm Beach, FL.
Florida Earth Foundation: Water Quality Module. South Florida Water Management District, West Palm Beach, FL “Mercury Monitoring and Assessment in South Florida,” 2009
Society of Wetland Scientists/Wisconsin Wetlands Association/Wetland Biogeochemistry Symposium Joint Meeting. Madison, WI. “Sulfur Import, Export and Mass Transfer in South Florida Wetlands.”
Second Annual Workshop of Mercury and Sulfur in South Florida Wetlands. South Florida Water Management District, West Palm Beach, FL (“Sulfur Import, Export and Mass Transfer within South Florida Wetlands,” 2009
Gabriel, M., Howard, N., Atkins, S. 2008. Annual Permit Compliance Monitoring Report for Mercury in Downstream Receiving Waters of the Everglades Protection Area. Appendix 3B-1 In 2009 South Florida Environmental Report – Volume 1, South Florida Water Management District, West Palm Beach, FL.
Gabriel, M., Howard, N., Atkins, S. 2008. Annual Permit Compliance Monitoring Report for Mercury in the STAs. Appendix 5-6  In 2009 South Florida Environmental Report – Volume 1, South Florida Water Management District, West Palm Beach, FL.
Gabriel, M.C., Williamson, D. 2008. Some insight into the influence of urban ground surface properties on the air-surface exchange of total gaseous mercury. Applied Geochemistry 23, 794-806.
Florida Earth Foundation: Water Quality Module. South Florida Water Management District, West Palm Beach, FL. “Mercury Monitoring and Assessment in South Florida,” 2008
South Florida Environmental Report Workshop. South Florida Water Management District, West Palm Beach, FL. “Sulfur as a Regional Water Quality Concern in South Florida,” 2007
Florida Earth Foundation: Water Quality Module. South Florida Water Management District, West Palm Beach, FL. “Mercury in South Florida,” 2007
Gabriel, M., Howard, N., Matson, F., Atkins, S., D. Rumbold, D. 2007. Annual Permit Compliance Monitoring Report for Mercury in Downstream Receiving Waters of the Everglades Protection Area. Appendix 3B-1  In 2008 South Florida Environmental Report – Volume 1, South Florida Water Management District, West Palm Beach, FL.
Gabriel, M., Howard, N., Matson, F., Atkins, S., Rumbold, D. 2007. Annual Permit Compliance Monitoring Report for Mercury in the STAs. Appendix 5-7  In 2008 South Florida Environmental Report – Volume 1, South Florida Water Management District, West Palm Beach, FL.
Gabriel, M., Redfield, G., Rumbold, D. 2007. Sulfur as a Regional Water Quality Concern in South Florida. Appendix 3B-2 Special Review In 2008 South Florida Environmental Report, South Florida Water Management District, West Palm Beach, FL.
Axelrad, D., Lange, T., Gabriel, M. 2007. Mercury and Sulfur Monitoring, Research and Environmental Assessment in South Florida. Chapter 3B In 2008 South Florida Environmental Report, South Florida Water Management District, West Palm Beach, FL. 
Gabriel, M.C., Williamson, D., Zhang, H., Lindberg, S., Brooks, S. 2006. Diurnal and seasonal trends in total gaseous mercury flux from three urban ground surfaces. Atmospheric Environment 40, 4269-4284.
International Lake of the Woods Water Quality Forum. International Falls, MN (February 7, 2006). “Influence of Prescribed Forest Fire on the Remobilization of Mercury in the Boundary Waters Canoe Area Wilderness.” 2006
University of Minnesota, Department of Soil, Water, and Climate. St. Paul, MN “Spatial Variability of Mercury Emissions from Soils in an Urban Environment,” 2005
Gabriel, M.C., Williamson, D., Lindberg, S., Zhang, H., Brooks, S. 2005. Spatial variability of total gaseous mercury emission from soils in a southeastern US urban environment. Environmental Geology 48, 955-964.

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