David Singer
Biography
My research focuses on contaminant transport in the environment which is affected by a range of phenomena occurring at the mineral-water interface. Our research draws from mineralogy and biogeochemistry and intersects with hydrology-hydrogeology to produce a more unified understanding of contaminant transport through complex materials across a wide range of spatial regimes. The research group focuses on: (1) Characterization and analysis of natural mineral surface coatings and associated metal(loid)s, and (2) Interdisciplinary field-based studies of mineral surface reactivity, metal(loid) transport, and geochemical cycling. Our work is accomplished by integrating field-based studies with laboratory-based analytical techniques, and synchrotron-based X-ray spectroscopic and scattering methods to investigate natural and model systems. Current work focuses on: (1) Lead (Pb) contamination in urban soils; and (2) Metal(loid) transport, soil formation, and contaminant in watersheds impacted by historic coal mining in Appalachia.
Education
B.S., Geological Sciences, University of Michigan
Expertise
Environmental Geochemistry
Medical Geology
earth materials
contaminant transport
metals
Publications
- Santoro, N., Singer, et al, (2024) Neighborhood-scale lead (Pb) speciation in Akron, Ohio (USA) soils: primary sources, post-deposition diagenesis, and high concentrations of labile Pb. Environ. Geochem. Health 46, 164
- Chowdhury, M.A.R. and Singer, D.M. (2024) Complex Speciation and Distribution of Iron, Sulfur, and Trace Metals in Coal Mine Soils Reflect Grain- and Sub-Grain-Scale Heterogeneity during Pyrite Oxidative Dissolution. Soil Systems 8, 2.
- Barczok, M., Smith, C., Di Domenico, N., Kinsman-Costello, L., Singer, D.M. and Herndon, E. (2023) Influence of contrasting redox conditions on iron (oxyhydr)oxide transformation and associated phosphate sorption. Biogeochemistry, p. 1-21
- Smart, K.E. and Singer, D.M. (2023) Surface Coal Mine Soils: Evidence for Chronosequence Development. Soil Systems 7, 59.
- Wood, D.L., Cole, K.A., Herndon, E.M., and Singer, D.M. 2023. Lime slurry treatment of soils developing on abandoned coal mine spoil: Linking contaminant transport from the micrometer to pedon-scale. Appl. Geochem. 151, 105617
- Chowdhury, M.A.R., and Singer, D.M. 2022. Trace Metal Enrichment in the Colloidal Fraction in Soils Developing on Abandoned Mine Spoils. Minerals 12,1290
- Chowdhury, M.A.R., Singer, D.M., and Herndon, E. (2021) Colloidal metal transport in soils developing on historic coal mine spoil. Applied Geochemistry, 128: 104933
- Singer, D.M., Herndon, E., Zemanek, L., Cole, K, Sanda, T.G., Senko, J., and Perdrial, N. (2021) Biogeochemical controls on the potential for long-term contaminant leaching from soils developing on historic coal mine spoil. Soil Systems. 5(1): p.3
- Yazbek, L.D., Cole, K.A., Shedleski, A. Singer, D.M., and Herndon, E.M. (2020) Hydrogeochemical processes limiting Fe export in a headwater catchment impaired by acid mine drainage. Environ. Sci. Technol. Water
- Singer, D.M., Herndon, E.M., Cole, K, Koval, J., and Perdrial, N. (2020) Formation of secondary mineral coatings and the persistence of reduced metal-bearing phases in soils developing on historic coal mine spoil. Appl. Geochem. 121, 104711
Awards/Achievements
- 5X社区, College of Arts and Sciences, 鈥淒istinguished Teacher Award鈥 (2019)
- 5X社区, Department of Geology, 鈥淕lenn W Frank Outstanding Teaching Award鈥 (2018 and 2019)
- Centennial Teaching Assistant Award - Stanford University (AY 2004-2005)
Documents
