University of California, Riverside

Environmental Sciences

Samantha Ying

Samantha Ying

Samantha Ying Photo

Assistant Professor of Soil Biogeochemistry

Academic Degrees:

  • Ph.D., Soil Biogeochemistry, Stanford University, 2011
  • B.S., Physical Geography, University of California, Santa Barbara, 2004
  • B.S., Microbiology, University of California, Santa Barbara, 2004


  • Soil redox processes
  • Role of soil microbes in contaminant transport
  • Carbon-mineral interactions

Research Group:

    Highly motivated and creative students are encouraged to contact Samantha Ying via email for information on Ph.D. graduate positions in soil biogeochemistry.

    Current Research:

    • Contribution of coal combustion byproducts to cropland contamination in China
    • Trace metal distribution and cycling in urban soils
    • Mobilization of contaminants under fluctuating redox conditions

    Selected Publications:

    • Ying, S.C., Y. Masue-Slowey, B.D. Kocar, S.D. Griffis*, S. Webb, M.A. Marcus, C.A. Francis, S. Fendorf. (2013) Distributed microbially- and chemically-mediated redox processes controlling arsenic dynamics within Mn-/Fe-oxide constructed aggregates. Geochimica et Cosmochimica Acta. 104, 29-41.
    • Masue-Slowey, Y., S.C. Ying, B.D. Kocar, C.E. Pallud, S. Fendorf. (2013) Dependence of arsenic fate and transport on biogeochemical heterogeneity arising from physical structure of soils and sediments. Journal of Environmental Quality.
    • Ying, S.C., B.D. Kocar, S. Fendorf. (2012) Oxidation and competitive retention of arsenic between iron- and manganese oxides. Geochimica et Cosmochimica Acta. 96(1) 294-303. 10.1016/j.gca.2012.07.013
    • Wilcox, J., E. Rupp, S.C. Ying, D.H. Lim, A.S. Negreira, A. Kirchofer, F. Feng, K. Lee. (2012) Mercury oxidation in coal combustion and gasification processes. International Journal of Coal Geology. 90-91, 4-20.
    • Ying, S.C., B.D. Kocar, S.D. Griffis*, S. Fendorf. (2011) Competitive Microbially and Mn Oxide Mediated Redox Processes Controlling Arsenic Speciation and Partitioning. Environmental Science and Technology, 45(13) 5572-2279.
    • Kocar B.D., Polizzotto, M.L., Benner, S.G., Ying, S.C., Ung, M., Ouch, K., Samreth, S., Suy, B., Phan, K., Sampson, M., Fendorf, S. (2008) Integrated Biogeochemical and Hydrologic Processes Driving Arsenic Release from Shallow Sediments to Groundwaters of the Mekong Delta. Applied Geochemistry, 23 (11) 3059-3071.


    • ENSC 232 - Biogeochemistry (Spring)
    • ENSC 100 - Introduction to Soil Science (Fall)
    • ENSC 104 - Environmental Soil Chemistry (Winter)
    • NASC 093 - CNAS Freshmen Advising Seminar (Fall)

    Graduate Program Affiliations and Research Focus Areas:

    • Research Focus Areas
      • Soil and Water Sciences
    • Program
      • Environmental Sciences
      • Environmental Toxicology

    More Information

    General Campus Information

    University of California, Riverside
    900 University Ave.
    Riverside, CA 92521
    Tel: (951) 827-1012

    Department Information

    Environmental Sciences
    Geology 2460

    Tel: (951) 827-5116
    Fax: (951) 827-4652