Leonard Ritter

Professor; Executive Director, Canadian Network of Toxicology Centres; Coordinator, NSERC Metals in the Human Environment Strategic Network; Fellow, Academy of Toxicological Sciences
Phone number: 
(519) 824-4120 Ext.52980


BSc(Hons), MSc Sir George Williams; PhD Queen's


Occupational exposure to pesticides; novel approaches to assessment of occupational exposure; human health effects of pesticide exposure; safety of food residues.


  • Arbuckle, T. and L. Ritter. 2005. Phenoxyacetic Acid Herbicide Exposure for Women on Ontario Farms. J. Toxicol. Environ. Health, Part A 68: 1359-1370.
  • Arbuckle, T., D.C. Cole, L. Ritter and B. Ripley. 2004. Farm Children's Exposure to Herbicides. Epidemiology 15: 187-194.
  • Ritter, L., Solomon, K.R., Sibley, P.K., Hall, K., Mattu, G., Keen, P., and B. Linton. 2002. Sources, Pathways, and Relative Risks of Contaminants in Surface Water and Groundwater:  A Perspective Prepared for the Walkerton Inquiry. J. Toxicol. Environ. Health, Vol. 65: 1-142.