Ann Ojeda
Department of Geosciences
Assistant Professor

Research Areas: Geohealth, Fate and Transport of Organic Contaminants, Stable Isotope Geochemistry, Environmental Chemistry

Office: 2071 Beard Eaves Coliseum

Lab: 2110B Beard Eaves Coliseum

Address: 2050 Beard Eaves Coliseum
Auburn, AL 36849

Phone: (334) 844-4203

Fax: (334) 844-4295



Ph.D. Geology, The University of Oklahoma
M.S. Chemistry, Texas A & M University
B.S. Chemistry, Lyon College

Professional Employment
Assistant Professor, Auburn University
2019 - Present
Postdoctoral Fellow, University of Toronto
2017 - 2019

Research and Teaching Interests

My research is at the intersection of geology, environmental science, and human health. The research questions most concern the nature of toxic organic contaminants in the environment, and we use creative analytical techniques to characterization of organic matter in water and sediment. Potential projects can include applications of compound-specific isotope analysis toward fate and transport of organic contaminants, analytical characterization of organic matter in water systems, and health determinates related to organic matter consumption.

Selected Publications

  1. Jordan, M., Ojeda, A. S., Larson, E. A.*, Rogers, S. Modeling the Pollution Potential from Onsite Wastewater Treatment Systems: The Power of Data to Elucidate Nonpoint Sources of Water Pollution. Environmental Science and Technology 57 (44), 17042-17050
  2. Ojeda, A.S., Herron, C.*, Malina, N., Olshansky, Y. (2023) Arsenic-Dissolved Organic Matter Complexation in Water Soluble Extracts from Lignite Chemosphere 342: 140036
  3. Kuder, T., Ojeda, A. S. (2022) Hydrogen isotope exchange between trichloroethene and water under mild environmental conditions – implications for the use of hydrogen CSIA in contaminated site assessment. Environmental Science and Technology Water 3.3 (2023): 712-719
  4. Malina, N., Ojeda, A.S. (2023) The impact of iron (III) on fluorescent dissolved organic matter (fDOM) probe measurements. Aquatic Sciences 85 (2) 43 DOI: 10.1007/s00027-023-00936-0
  5. Varner, T. S., Kulkarni, H. V., Nguyen, W., Kwak, K., Cardenas, M. B., Knappett, P. S. K., Ojeda, A. S., Malina, N., Bhyiyan, M. U., Ahmed, K. M., Datta, S. (2022) Contrasting biogeochemical controls on arsenic mobilization in a reducing aquifer and a potential riverbank natural reactive barrier (NRB). Chemosphere 308, 136289

Last updated: 01/17/2024