Health Hazards

Health hazards are chemical, physical or biological factors in our environment that can have negative impacts on our short- or long-term health. Exposure can occur through touch, inhalation, and ingestion. Understanding the risks of these hazards can help us to take action to avoid or mitigate these risks.


Case Studies


OEH Seminar: What Do We Know about the Risk of Asthma and the Environment (Air Pollution)? A Population-based Approach

This presentation reviews: 

  • the lifetime risk of developing asthma in the Ontario population
  • the association between air pollution and asthma
  • the role of air pollution in disease progression
  • future research directions
See the Event Details
Updated 7 March 2019