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Air Quality


Air Quality in Your Home 


Could the air in your home be a hazard to your health?

Visiting The Lung Association's award-winning website at can help you identify and solve common indoor air quality problems which may be affecting your health. 

This brochure outlines some common air quality issues that could affect your home - such as mould, smoke and radon -  and explains what you can do about them.


Air Quality in Ontario 


Are you interested in learning about the quality of air across Ontario? Air Quality in Ontario is published annually by the Ontario Ministry of the Environment, showing trends and illustrating how Ontario’s air quality compares to other cities in the world.

Questions? Call our Lung Health Information Line at 1-888-344 LUNG (5864). 

Smog in Ontario 


High smog concentrations can be found throughout Ontario, particularly in the southern region, and at times, in the northwestern parts of the province. Smog can be elevated in urban and rural areas, including 'cottage country'. Learn how to protect your health and to do your share to reduce air pollution.  

download Smog Brochure



Your guide to the Air Quality Health Index (AQHI) A poster-sized guide to the AQHI, for health care providers


Air Quality Resources


Scented products

Download a "scent-free" sign

View current smog conditions in your Ontario community*

Receive Ontario Smog Alerts by Email*
*provided by Ontario Ministry of the Environment

Learn how to Breathe Easier in Cottage Country

Understand the links between Climate Change, Air Quality and Respiratory Health

Learn about the development of Canada’s Air Quality Health Index

Ontario Lung Association fact sheet on the Air Quality Health Index

Executive Summary: Community Implementation of the Air Quality Health Index in a High Risk Population Click here.

Executive Summary: Correlation of Air Quality Health Index and Acute Health Services Use for Asthma Click here