Thunder Bay - Air Quality Health Index
Not Available
Saturday
Saturday night
Sunday
Sunday night
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...?
Negative health effects increase as air pollution worsens.
The AQHI is an initiative between Environment Canada, Health Canada and the Province of Ontario.

Observed ConditionsFootnote †
Not Available
Forecast Maximums
Issued at:
6:00 AM EST Saturday 22 February 2025
The AQHI is an initiative between Environment Canada, Health Canada and the Province of Ontario.
Features
The Environment and Climate Change Canada Meteorology Awards

Environment and Climate Change Canada’s Meteorology Awards Program provides scholarships to students pursuing an education in atmospheric sciences.
- Date modified: