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Webinars will be held via Zoom. Webinar details will be sent to all registered participants via EventBrite.
  • February 26, 2021 from 12:00pm to 1:00pm

Presenter: 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.

Title: Using geographic information systems to estimate 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.