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Today’s Air Quality


​Learn about the Air Quality Health Index and where to monitor poor air quality in your area.

Sign up for weather alerts

Sign up for real-time weather alerts from Environment and Climate Change Canada by creating an EC Alert Me account (external link) or downloading the WeatherCAN app (external link).

Halton Region will issue Extended Heat Warnings (heat events longer than 3 days), or Special Air Quality Statements related to forest fires or other emergency events on our newsroom.

What are the air quality conditions for today?

Keep track of air quality in your area to help you prepare and protect your family from potential health risks while outdoors.

Find out what colour air day it is in your city!

Air Monitoring Stations in Halton

Wildfire smoke, air quality and health

Wildfire smoke can be a major source of air pollution. Wildfire smoke can be carried hundreds or thousands of kilometres from the fire. Air quality due to wildfire smoke can fluctuate over short distances and can vary considerably from hour to hour. To be prepared for changing air quality conditions, it is important to monitor the local forecast and regularly check the Air Quality Health Index (external link) for your area.

There are precautions that can be taken to reduce exposure to wildfire smoke, these include:

  • Limiting outdoor activities and strenuous physical activities
  • Looking for breaks in the smoke to find opportunities to go outdoors
  • Setting HVAC systems to recirculation mode when the outdoor air quality is poor, and bringing in fresh air when the outdoor air has improved

For more information on wildfire smoke and your health visit Health Canada’s Wildfire smoke 101: Wildfire smoke and your health (external link) and Environment and Climate Change Canada’s Wildfire smoke, air quality and your health (external link).