Outdoor Air Quality

Outdoor Air Quality Outdoor Air Quality

Poor outdoor air quality poses a significant risk to public health in Halton Region and in many other communities in southern Ontario. It does not matter who you are, where you live or the state of your health, the quality of the air you breathe each day affects you.


Air Quality Health Index (AQHI)

Air Quality Health Index (AQHI)

Learn more about the Air Quality Health Index (AQHI) and how you can use it to determine your level of health risk on a given day.


Today’s Air Quality

Today’s Air Quality

Quick links to today’s air quality in your community. Is it a blue, orange or red air day today?


Air Quality and Your Health

Air Quality and Your Health

Discover the impact of air pollution on your health and how the actions you take today can help improve your health and well-being tomorrow.


Air Quality and Your Child's Health

Air Quality and Your Child's Health

Children and infants are at greater risk than adults for many reasons – learn how to protect your children's health.


Air Quality Advisories

Air Quality Advisories

Taking extra care during air quality advisories can help protect your health – especially for people with breathing or heart issues, older adults and young children.


Air Quality Resources and Reports

Air Quality Resources and Reports

Access educational and background resources, videos and more!



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