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National Institute of Environmental Health Sciences

 

Person Details

Superfund Research Program

Peggy A. O'Day

University of California-Merced
School of Natural Sciences
5200 N. Lake Road
Merced, CA 95343
Phone: 209-228-4338
Fax: 209-228-4053
Email:

Projects

Hazardous Waste Sites

Onondaga Lake

  • University of California-Merced: Sequestration and Immobilization of Metal and Metalloid Contaminants in Sediments

Sulphur Bank Mercury Mine

  • University of California-Merced: Sequestration and Immobilization of Metal and Metalloid Contaminants in Sediments

Publications

2012
  • Bessinger, Brad, Dimitri Vlassopoulos, Susana Serrano, and Peggy A. O'Day. 2012. Reactive Transport Modeling of Subaqueous Sediment Caps and Implications for the Long-Term Fate of Arsenic, Mercury, and Methylmercury. Aquatic Geochemistry. 18:297-326. doi:10.1007/s10498-012-9165-4  
  • Hayes, Sarah M., Samuel M. Webb, John R. Bargar, Peggy A. O'Day, Raina M. Maier, and Jon Chorover. 2012. Geochemical weathering increases lead bioaccessibility in semi-arid mine tailings. Environmental Science & Technology.   46(11):5834-5841. doi:10.1021/es300603s  
  • Serrano, Susana, Dimitri Vlassopoulos, Brad Bessinger, and Peggy A. O'Day. 2012. Immobilization of Hg(II) by coprecipitation in sulfate-cement systems. Environmental Science & Technology.   46(12):6767-6775. doi:10.1021/es202939v  
2011
  • Hayes, Sarah M., Peggy A. O'Day, Samuel M. Webb, Raina M. Maier, and Jon Chorover. 2011. Changes in Zinc Speciation with Mine Tailings Acidification in a Semiarid Weathering Environment. Environmental Science & Technology.   45:7166-7172. doi:10.1021/es201006b  
  • O'Day, Peggy A., Susana Serrano, T. Stilson, and Dimitri Vlassopoulos. 2011. Mercury distribution and speciation in a seasonal wetland impacted by mine waste. In: Goldschmidt Conference.
  • Serrano, Susana, Dimitri Vlassopoulos, Brad Bessinger, and Peggy A. O'Day. 2011. Hg(II) sequestration by ettringite-type phases. A geochemical modeling and EXAFS study. In: Goldschmidt Conference.
  • Vlassopoulos, Dimitri and Peggy A. O'Day. 2011. Approaches to in situ remediation of mercury and arsenic contaminated soils and sediments using mineral amendments. In: The Mineralogical Society Annual Meeting: Frontiers in Environmental Geoscience.
2010
  • Bessinger, Brad, Dimitri Vlassopoulos, Susana Serrano, and Peggy A. O'Day. 2010. Reactive transport modeling of arsenic and mercury fate at the ground water-surface water interface. In: The National Groundwater Association 2010 Ground Water Summit.
  • O'Day, Peggy A. and Dimitri Vlassopoulos. 2010. Mechanisms of contaminant metal and metalloid sequestration using reactive amendments for soil and sediment remediation. In: The 20th General Meeting of the International Mineralogical Association.
  • O'Day, Peggy A. and Dimitri Vlassopoulos. 2010. Mineral-based amendments for remediation. Elements. 6:375-381. doi:10.2113/gselements.6.6.375  
  • Serrano, Susana, Dimitri Vlassopoulos, F. Garrido, M.T. Garcia-Gonzalez, and Peggy A. O'Day. 2010. Calibration of a general mineralogy-constrained sorption model for heavy metals and application to evaluation of reactive transport processes in natural soil columns. In: The National Groundwater Association 2010 Ground Water Summit.
  • Serrano, Susana, Dimitri Vlassopoulos, F. Garrido, M.T. Garcia-Gonzalez, and Peggy A. O'Day. 2010. Calibration of a general mineralogy-constrained sorption model for heavy metals and application to evaluation of reactive transport processes in natural soil columns. In: The National Groundwater Association 2010 Ground Water Summit.
  • Serrano, Susana, Dimitri Vlassopoulos, F. Garrido, M.T. Garcia-Gonzalez, and Peggy A. O'Day. 2010. Calibration of a general mineralogy-constrained sorption model for heavy metals and application to evaluation of reactive transport processes in natural soil columns. In: The National Groundwater Association 2010 Ground Water Summit.
2009
  • Bessinger, Brad, Dimitri Vlassopoulos, Susana Serrano, and Peggy A. O'Day. 2009. Reactive transport modeling of arsenic and mercury in a chemically amended sediment cap. In: Proceedings of the Fifth International Conference on Remediation of Contaminated Sediments. Battelle, Jacksonville, FL.
  • O'Day, Peggy A., Susana Serrano, Brad Bessinger, V. Illera, and Dimitri Vlassopoulos. 2009. Sediment remediation of metal and metalloid contaminants with reactive amendments. In: 19th Annual V.M. Goldschmidt Conference. Davos,
  • Vlassopoulos, Dimitri, Brad Bessinger, V. Illera, and Peggy A. O'Day. 2009. Lithologic, hydrologic, and biogeochemical influences on spatio-temporal variability of As and Hg concentrations in groundwater. In: 19th Annual V.M. Goldschmidt Conference. Davos,
2008
  • O'Day, Peggy A., V. Illera, Sungjong Choi, and Dimitri Vlassopoulos. 2008. Immobilization and natural attenuation of arsenic in surface and subsurface sediments. In: American Geophysical Union, Fall Meeting. San Francisco, CA.
2002
2001
  • Farrell, James, Jianping Wang, Peggy A. O'Day, and Martha H. Conklin. 2001. Electrochemical and spectroscopic study of arsenate removal from water using zero-valent iron media. Environmental Science & Technology.   35(10):2026-2032. doi:10.1021/es0016710  
  • Villinski, John E., Peggy A. O'Day, John R. Bargar, and Martha H. Conklin. 2001. In situ formation and transformation of Fe(III) precipitates from the oxidation of Fe(II) by MnO2. In: Proceedings of the 222nd ACS (American Chemical Society) National Meeting - Fall 2001. Chicago, IL. pp.PaperNo.482686.
  • Villinski, John E., Peggy A. O'Day, Timothy L. Corley, and Martha H. Conklin. 2001. In situ spectroscopic and solution analyses of the reductive dissolution of MnO2 by Fe(II). Environmental Science & Technology.   35(6):1157-1163. doi:10.1021/es001356d  
2000
  • Kay, John T., Christopher C. Fuller, Martha H. Conklin, and Peggy A. O'Day. 2000. Trace-metal interactions with sediments from the hyporheic zone of a mine-contaminated stream, Pinal Creek, Arizona. In: Proceedings of the Conference on Earth Observing System (EOS), Transactions of the American Geophysical Union. Fall Meeting Supplement, December 15-19. San Francisco, CA. pp.F480.
  • Villinski, John E., Peggy A. O'Day, John R. Bargar, and Martha H. Conklin. 2000. Reductive dissolution of MnO2 by Fe(II): Effects of chemical gradients and intermediate phase structural information. In: Proceedings of the American Chemical Society Fall Meeting, August 20-24, American Chemical Society. Washington, DC. pp.630-633.
1999
  • Villinski, John E., Peggy A. O'Day, Timothy L. Corley, and Martha H. Conklin. 1999. A flow-through cell for in situ, real time X-ray absorption spectroscopy studies of geochemical reactions. In: Proceedings of the U.S. Geological Survey Toxic Substances Hydrology Program Technical Meeting - Volume 2 - Contamination of Hydrologic Systems and Related Ecosystems. U.S. Geological Survey Water-Resources Investigations Report 99-4018B. pp.217-226.
1998
  • Villinski, John E., Peggy A. O'Day, and Martha H. Conklin. 1998. Reductive dissolution of pyrolusite by Fe(II): A real-time, in situ XANES experiment. EOS: Transactions of the American Geophysical Union. 79(45):342-343.

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