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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.
Biological Health Hazards
Documents, resources and links related to microorganisms, viruses, toxins, spores and fungi that pose a threat to human health.
Chemical Health Hazards
Information, resources and links related to toxic chemicals that can cause acute or chronic negative health effects from short or long-term exposure.
Physical Health Hazards
Information, resources and links for assessing, monitoring and addressing the risk of physical hazards: noise, temperature, vibration and radiation.
Featured
Focus On
Per-and Poly-fluoroalkyl Substances (PFAS)
This document describes the PFAS group of chemicals, the evidence on potential health effects associated with exposures, and various environmental guidelines for this group of chemicals.
1.8 MB
Published 1 May 2023
Focus On
Focus On Health Effects Radiofrequency Electromagnetic Fields Including 5G
Describes radiofrequency (RF) electromagnetic fields (EMF), how they are regulated in Canada, and an overview of the evidence on potential health effects associated with exposures.
1.7 MB
Updated 20 Nov 2023
Interactive Map
Raw Water Chemicals Map
The Raw Water Chemicals Map provides information from untreated water sampling programs to support risk assessments of small drinking water systems. It includes specific information on chemicals relevant to public health.
Webpage
Updated 16 June 2021
Infographic
Radon in Ontario
Describes the lung cancer burden of radon in Ontario
775 KB
Updated 28 Aug 2013
Technical Report
Lead Exposures Among Recreational Shooters
Reviews how lead exposures occur and identifies interventions that can prevent exposure.
583 KB
Updated 20 Oct 2014
Case Studies
Case Study
Case study: Sous Vide
This review describe sous vide cooking, list the main microbiological safety concerns, and application of Hazard Analysis Critical Control Point system for sous vide cooking.
722 KB
Updated 26 Oct 2016
Case Study
Case Study: Pathogens and Spices
This paper explores the illnesses associated with Low moist food (LMF), eg. spices & dried herbs, contributing factors for contamination of LMF and pathogen survival.
972 KB
Updated 11 Jan 2016
Case Study
Case Study: Chromite Mining and Processing
We review the environmental fate and transport of chromium; potential health effects related to mining and processing; and strategies to prevent exposure.
664 KB
Updated 1 April 2015
Case Study
Case Study: Health Effects of Traffic-related Air Pollution in a Small Community
We review the potential health effects of traffic-related air pollution in a small community from industrial vehicles.
465 KB
Updated 1 April 2015
Case Study
Case Study: Evidence of Foodborne Outbreaks Associated with Pizza
Is pizza a potentially hazardous food? This paper reviews the evidence of foodborne outbreaks associated with consumption of pizza.
416 KB
Updated 12 Jan 2015
Case Study
Case Study: Neonicotinoids
Information on the use of neonicotinoids and the potential impacts on food security.
511 KB
Updated 12 Jan 2015
Updated1 May 2023
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