Water Quality

One of the major themes of this research group is the elucidation of magnitude and mechanisms of water quality degradation and impacts on ecosystems and human health. The geochemical and isotopic variations are used as natural “fingerprints” for tracing the origin, migration, and fate of contaminants in the environment. We have studied the water quality of water resources in different parts of the world (Jordan, Israel, Morocco, Ethiopia, Vietnam, India, United States) and the occurrence and distribution of contaminants (arsenic, radium, fluoride, boron, hexavalent chromium, uranium, and molybdenum) in water resources.

Global Water Quality Research

Geochemistry of Radionuclides in groundwater resources: Uranium, radium, and radon – Naturally Occurring Materials (NORM)

  • Vengosh, A., Coyte, R.M., Podgorski, J., Johnson, T.M. (2022) A critical review on the occurrence and distribution of the uranium- and thorium-decay nuclides and their effect on the quality of groundwater. Science of The Total Environment, 808, 151914. (https://doi.org/10.1016/j.scitotenv.2021.151914)
  • McMahon, P.; Vengosh, A.; Davis, T.; Landon, M.; Tyne, R.; Wright, M.; Kulongoski, J.; Hunt, A.; Barry, P.; Kondash, A.; Wang, Z.; Ballentine, C. (2019). Occurrence and sources of radium in groundwater associated with oil fields in the southern San Joaquin Valley, California. Environmental Science & Technology, 53, 16, 9398-9406.

Geochemistry of Arsenic

Geochemistry of Hexavalent Chromium

  • Guo, H.,  Chen, Y., Hu, H., Zhao, K.,  Li, H., Yan, S., Xiu, W.,  Coyte, R.M., Vengosh, A. (2020) High hexavalent chromium in groundwater from a deep aquifer in the Baiyangdian basin of the North China Plain. Environmental Science & Technology, 54, 10068–10077.
  • Coyte, R.M., McKinley, K. L., Jiang, S., Karr, J., Dwyer, G. S., Keyworth, A. J., Davis, C. C., Kondash, A. J., and Vengosh, A. (2019) Occurrence and distribution of hexavalent chromium in groundwater from North Carolina, USA. Science of the Total Environment, 711, 135135.
  • Vengosh, A., Coyte, R., Karr, J., Harkness, J.S., Kondash, A.J., Laura S. Ruhl, L.A., Rose B. Merola, R.B., Dywer, G.S. (2016) The Origin of Hexavalent Chromium in Drinking Water Wells from the Piedmont Aquifers of North Carolina. Environmental Science & Technology Letters, 3, 409-414.hexavalent-chromium-in-piedmont-groundwater

Geochemistry of fluoride

  • Schlesinger, W.H., Klein, E., Vengosh, A. (2020) Global Biogeochemical Cycle of Fluorine. Global Biogeochemical Cycles 34, e2020GB006722https://doi.org/10.1029/2020GB006722.
  • Godebo, T., Vengosh, A., Jeuland, M., Whitford, G.M., Tekle-Haimanot, D. (2017) Biomarkers of chronic fluoride exposure in groundwater in a highly exposed population. Science of the Total Environment596–597, 15, 1–11.
  • Rango. T., Vengosh, A. Jeuland, M., Tekle-Haimanot, Weinthal, E., Kravchenko, Paul, C., McCornick, P. (2014) Fluoride exposure from groundwater as reflected by urinary fluoride and children’s dental fluorosis in the Main Ethiopian Rift Valley. Science of the Total Environment, 496, 188-197.
  • Godebo, T.R., Vengosh, A. Dawyer, G., Bianchini, G. (2013) Mobilization of arsenic and other naturally occurring contaminants in groundwater of the Main Ethiopian Rift aquifers. Water Research, 47, 5801–5818.
  • Rango, T., Kravchenko, J., Atlaw, B., McCornick, P.G., Jeuland, M., Merola, M. Vengosh, A., (2012). Groundwater quality and its health impact: an assessment of dental fluorosis in rural inhabitants of the Main Ethiopian Rift. Environment International, 43, 37-47. [Rango et al, 2012]