Toronto West - Air Quality Health Index
Calculated at: 2:00 PM EDT Friday 20 March 2026
3Low Risk
2
3
4
5
6
7
8
9
10
+
Moderate Risk
(4-6)
High Risk
(7-10)
Very High Risk
At-Risk Population:
- Enjoy your usual outdoor activities.
- Find out if you are at risk
General Population:
- Ideal air quality for outdoor activities.
Issued at: 6:00 AM EDT Friday 20 March 2026
Friday
4
- Moderate Risk
Friday night
4
- Moderate Risk
Saturday
3
- Low Risk
Saturday night
4
- Moderate Risk
Who is at risk?
People with heart and lung conditions are most affected by air pollution.
To find out if you are at risk, consult the health guide, or your physician.
Visit the national AQHI Web site to learn more about the AQHI.
Did you know...?
Running your gas powered lawnmower for 1 hour is equal to driving a new car between 320 and 480 kilometres.
The AQHI is an initiative between Environment Canada, Health Canada and the Province of Ontario.
