Shelley Harris


Shelley Harris first became interested in occupational and environmental health while travelling in India and Jamaica as part of her undergraduate minor in International Agriculture, where poor working conditions led to exacerbated risk for serious acute illness due to environmental and occupational exposures. Now focusing on chronic disease in Canada and the United States, Shelley has a distinct appreciation for the challenges that exist when quantifying small, long-term exposures linked with cancer and other chronic diseases, and has centred her work on improving measurement of occupational and environmental exposures for determining disease risk. Shelley adds rigor and immense field-specific knowledge to the OCRC team, attracting both students and collaborating researchers to the Centre.

Key Appointments

  • Scientist, Prevention, Screening & Cancer Control, Cancer Care Ontario
  • Associate Professor, Dalla Lana School of Public Health, University of Toronto


  • B.Sc. (Environmental Biology and International Agriculture), University of Guelph (1988)
  • M.Sc. (Environmental Toxicology), University of Guelph (1991)
  • Ph.D. (Epidemiology), University of Toronto (1999)

Related Activities

  • Chair, Environmental and Occupational Working Group for the Ontario Health Study (OHS)
  • Member, National Occupational and Environmental Advisory Group for the Canadian Partnership for Tomorrow Project
  • Member, Environmental Health Working Group, Division of Occupational and Environmental Health, School of Public Health, University of Toronto.
  • National Uranium Miners Working Group member (collaboration with the Canadian Nuclear Safety Commission)