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Toluwanimi Oni, Ph.D., M.P.H.
Occupational & Environmental Health

Toluwanimi Oni, Ph.D., M.P.H.

Assistant Professor of Research

Hudson College of Public Health
801 NE 13th St, Room 415
Post Office Box 26901
Oklahoma City, OK 73104

(405) 271-8001, x33848

toluwanimi-oni@ou.edu

Dr. Toluwanimi Oni is an Assistant Professor of Research at the Department of Occupational and Environmental Health. Dr. Oni earned a BS in Physiology and a MPH in Environmental Health from the University of Ibadan, Nigeria and a PhD in Occupational and Environmental Health from the University of Oklahoma. Dr. Oni’s research interests are focused on exposure assessment, health effects of environmental exposures (electronic cigarettes, tobacco smoke, air pollution and metals), gene-environment interactions and causal mediation analysis. During his graduate studies, Dr. Oni received 3 pilot project funding awards to 1.) develop a simplified method for sampling and analysis of nicotine from electronic cigarettes, 2.) assess nicotine and particulate matter levels at vape shops and, 3.) develop and test the efficacy of a novel tool for reducing nicotine and particulate matter levels in indoor settings.  Currently, Dr. Oni is involved in studies exploring causal pathways between metals’ exposures and neurological diseases/disorders.

Education:

  • Ph.D., Occupational and Environmental Health, University of Oklahoma Health Sciences, 2024
  • M.P.H., Environmental Health, University of Ibadan, 2016
  • B.S., Physiology, University of Ibadan, 2011

Appointments:

  • Assistant Professor of Research, Department of Occupational and Environmental Health, University of Oklahoma Health Sciences, 2024 – present
  • Hudson Fellow, Hudson College of Public Health, University of Oklahoma Health Sciences, 2021 – 2024
  • Graduate Research Assistant, Department of Occupational and Environmental Health, University of Oklahoma Health Sciences, 2019 - 2021

Teaching:

  • OEH 5013 Introduction to Environmental Health
  • OEH 5023 Public Health Sanitation
  • OEH 5723 Fundamentals of Occupational and Environmental Health Science
  • OEH 5742 Industrial Hygiene & Env. Measurements
  • OEH 5801 Basic Ergonomics
  • OEH 5103 Sampling Strategies
  • OEH 5702 Principles of Safety
  • OEH 5980 Research for Master’s Thesis
  • OEH 6980 Research for Doctoral Dissertation

Clinical/Research Interests:

  • Assessing exposures to environmental hazards in occupational and community settings
  • Assessing health effects of environmental exposures
  • Exploring causal pathways between environmental hazards (particularly metals) and adverse health conditions such as neurological diseases/disorders
  • Investigating gene-environment interactions in disease development

Select Publications:

Link to Dr. Oni's full publication list

  1. Toluwanimi M Oni, Balaji Sadhasivam, Evan L Floyd, Assessment of vape shop built environment: airborne nicotine, particulate matter, ventilation, hazard identification, workplace practices, and safety perceptions, Annals of Work Exposures and Health, Volume 69, Issue 5, June 2025, Pages 510–519, https://doi.org/10.1093/annweh/wxaf018
  2. Oni TM, Cai C, Floyd EL. Efficacy of Acid-Treated HEPA Filters for Dual Sequestration of Nicotine and Particulate Matter. Air. 2025; 3(1):8. https://doi.org/10.3390/air3010008
  3. Toluwanimi M Oni, Sanjeewa Gamagedara, Evan L Floyd, Desorption efficiency and holding capacity of acid-treated filters for nicotine sampling in vape shops, Annals of Work Exposures and Health, Volume 69, Issue 1, January 2025, Pages 104–108, https://doi.org/10.1093/annweh/wxae080
  4. Floyd E, Oni T, Cai C, Rehman B, Hwang J, Watson T. Validation of a High Flow Rate Puff Topography System Designed for Measurement of Sub-Ohm, Third Generation Electronic Nicotine Delivery Systems. International Journal of Environmental Research and Public Health. 2022; 19(13):7989. https://doi.org/10.3390/ijerph19137989
  5. Evan L. Floyd, Jonghwa Oh, Karim Sapag, Toluwanimi M. Oni, Jacob S. Shedd and Claudiu T. Lungu. Photothermal desorption of toluene from carbonaceous substrates using light flash. Nanomaterials 2022, 12(4), 662; https://doi.org/10.3390/nano12040662
  6. FL Esteban Florez, T Thibodeau, T Oni, E Floyd, SS Khajotia, C Cai. Size-resolved spatial distribution analysis of aerosols with or without the utilization of a novel aerosol containment device in dental settings. Physics of Fluids 33 (8), 085102
  7. Floyd, E.; Greenlee, S.; Oni, T.; Sadhasivam, B.; Queimado, L. The Effect of Flow Rate on a Third-Generation Sub-Ohm Tank Electronic Nicotine Delivery System - Comparison of CORESTA Flow Rates to More Realistic Flow Rates. International Journal of Environmental Research and Public Health. 2021, 18, 7535. https:// doi.org/10.3390/ijerph18147535
  8. Changjie Cai, Evan L. Floyd, Kathleen A. Aithinne, Toluwanimi Oni. Is the Current N95 Respirator Filtration Efficiency Test Sufficient for Evaluating Protection Against Submicrometer Particles Containing SARS-CoV-2? medRxiv 2020.05.14.20102327; doi: https://doi.org/10.1101/2020.05.14.20102327
  9. Evan L. Floyd, Subekchhya Subedi, Theodore L. Wagener, David L. Johnson, and Toluwanimi M. Oni. Low powered variable voltage E-Cigarette batteries under perform at higher power settings. Inhalation Toxicology, 32:3, 110-114, DOI: 10.1080/08958378.2020.1748145
  10. Godson R.E.E. Ana, Toluwanimi M. Oni, and Derek G. Shendell. Carbon Monoxide Exposure and Reported Health Conditions among filling station attendants in Ibadan, Nigeria, Journal of Environmental Health, Vol. 83, Iss. 1 pp 26-31.
  11. Oni, T. and Ana, G. Ambient air pollution exposure and lung function assessment of filling station attendants in Ibadan, Nigeria. Reviews on Environmental Health, 0(0), pp. doi:10.1515/reveh-2018-0027.