Sudbury - Air Quality Health Index
3Low Risk
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.
Sunday night
Monday
Monday night
Tuesday
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...?
You can play a part in reducing air pollution. Many car trips are less than 3 kilometres: an average person can cycle 3 kilometres in under 15 minutes.
The AQHI is an initiative between Environment Canada, Health Canada and the Province of Ontario.

Observed ConditionsFootnote †
3 - Low Risk
Calculated at:
2:00 AM EDT Monday 28 April 2025
Forecast Maximums
Issued at:
5:00 PM EDT Sunday 27 April 2025
The AQHI is an initiative between Environment Canada, Health Canada and the Province of Ontario.
- Date modified: