Thomas, Patricia

Adjunct Professor

Patricia Thomas

Toxicology Centre
University of Saskatchewan, 44 Campus Drive
Saskatoon, Saskatchewan, Canada
S7N 5B3

Phone: 306-244-4807


Academic Degrees

  • B.Sc., Ph.D. (Saskatchewan)

Current Teaching

  • TOX 310.3  Radiation and Radionuclide Toxicology
  • TOX 810.3  Radiation and Radionuclide Toxicology
  • Tox 320.3 Inhalation and Environmental Toxicology of Air Pollutants

Current and Recent Research Projects

  • Effects of ionizing radiation on the cardiovascular system, particularly endothelial cells.
  • Survival of human and animal cells exposed to x-rays and alpha-emitting radionuclides.
  • Absorption and food chain transfer of uranium-series radionuclides to animals and humans.
  • Assessment of radiation dose and risk to animals and humans in uranium mining areas.
  • Radon emanation from different soil types


Thomas P., Anderson DW, Zhang W, Baweja AS, Tracy BL. June 2011.  Radon emanation in Saskatchewan soils. Health Physics 100 (6):565-73

Thomas P.  2008.  Food chain transfer of uranium series radionuclides. Pages 169-178 in De Kok LJ and Schnug E.  Loads and fate of fertilizer-derived uranium. Backhuys Publishers, Leiden and Margraf Publishers, Weikersheim, Germany.

Thomas, P., Tracy, B., Ping, T., Wickstrom, M., Baweja, A., Sidhu, N., Hiebert, L.  March 2007. Relative biological effectiveness (RBE) of alpha radiation in cultured porcine aortic endothelial cells.  International Journal of Radiation Biology, 83(3):171-179.

Thomas, P., J. Irvine, J. Lyster, and R. Beaulieu. 2005. Radionuclides and trace metals in Canadian moose near uranium mines: comparison of radiation doses and food chain transfer with cattle and caribou. Health Physics 88: 423-438.

Thomas, P., B. Tracy, T. Ping, M. Wickstrom, N. Sidhu and L. Hiebert.  2003.  The relative biological effect (RBE) of polonium-210 alpha particles vs. x-rays on lethality in bovine endothelial cells.  Int. J. Radiat. Biol. 79(12): 107-118.

Thomas, P., I. Fisenne, D. Chorney, A. Baweja and B. Tracy.  2001.  Human absorption and retention of polonium-210 from caribou meat.  Radiat. Prot. Dosim. 97: 241-250.

Thomas, P. and K. Liber.  2001.  Radiation doses to benthic invertebrates near a Canadian uranium mine.  Environ. Int. 27(4): 341-353.

Thomas, P.  1999.  Radionuclides in the terrestrial ecosystem near a Canadian uranium mill: Part I: distribution and doses.  Health Phys. 78: 614-624.

Thomas, P.  1999.  Radionuclides in the terrestrial ecosystem near a Canadian uranium mill: Part II: small mammal food chains and bioavailability.  Health Phys. 78: 625-632.

Thomas, P.  1999.  Radionuclides in the terrestrial ecosystem near a Canadian uranium mill: Part III: atmospheric deposition rates (pilot test).  Health Phys. 78: 633-640.

Thomas, P. and T. Gates.  1999.  Radionuclides in the lichen-caribou-human food chain near uranium mining operations in northern Saskatchewan, Canada.  Environ. Health Persp. 107: 527-537.