Event Details

OEH Seminar: Estimating potential pesticide exposure at the population level in Canada

Pesticide exposure may relate to certain cancer outcomes, reproductive health issues, adverse birth outcomes, neurological concerns and other more general health problems. The purpose of this study was to generate national population-level exposure estimates for three commonly applied pesticides that are suspected carcinogens. Using geographic information systems, pesticide exposure was estimated for every - census subdivision (CSD) in Canada (n=5,054) by combining raster-based surfaces for the distribution of crops with average crop-specific pesticide application rates. Analyses examined all crops in combination with different pesticide application rates to obtain a cumulative potential total exposure. Results demonstrate that the population exposure varies greatly depending on agricultural production.

Presenter(s): Dr. Kristian Larsen

Kristian is a research scientist at CAREX Canada and sessional lecturer in the Department of Geography and Planning at the University of Toronto. He holds a PhD in Planning from the University of Toronto and an MA in Health Geography from the University of Western Ontario. Kristian also conducted post-doctoral work in Epidemiology and Public Health at SickKids Hospital and CAMH. Over the past decade he has used GIS methods to examine potential links between the environment and health. The themes of his work relate to chronic disease prevention, environmental exposures, and access to health care.


The opinions expressed by speakers and moderators do not necessarily reflect the official policies or views of Public Health Ontario, nor does the mention of trade names, commercial practices, or organizations imply endorsement by Public Health Ontario.


The Occupational and Environmental Health Seminar Series is a self-approved group learning activity (Section 1) as defined by the Maintenance of Certification program of The Royal College of Physicians and Surgeons of Canada. The series is also approved by Council of Professional Experience for professional development hours (PDHs) for members of the Canadian Institute of Public Health Inspectors (CIPHI), and by the Canadian Registration Board of Occupational Hygienists (CRBOH) for Registration Maintenance (RM) points. For more information, please contact Elaina MacIntyre (elaina.macintyre@oahpp.ca).   


Public Health Ontario is committed to complying with the Accessibility for Ontarians with Disabilities Act (AODA). If you require accommodations to participate in this event, please contact 647-260-7100 or events@oahpp.ca.

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Published 22 Feb 2021