Mississauga - Air Quality Health Index

ORANGE WARNING - AIR QUALITY

Observed ConditionsFootnote †

Calculated at: 5:00 PM EDT Friday 17 July 2026

3Low Risk




1
2
3
4
5
6
7
8
9
10
+

Low Risk
(1-3)

Moderate Risk
(4-6)

High Risk
(7-10)

Very High Risk



At-Risk Population:

General Population:

  • Ideal air quality for outdoor activities.

Forecast Maximums

Issued at: 5:00 PM EDT Friday 17 July 2026

Friday night

10+ - Very High Risk

Saturday

10 - High Risk

Saturday night

6 - Moderate Risk

Sunday

2 - Low 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, your physician, or your local health authority.

Visit the national AQHI Web site to learn more about the AQHI.

Did you know...?

The quality of the air you breathe today can affect your health now and for many years to come.


The AQHI is an initiative between Environment Canada, Health Canada and the Province of Ontario.

ORANGE WARNING - AIR QUALITY
AQHIScale

Observed ConditionsFootnote †


3 - Low Risk

Calculated at:

5:00 PM EDT Friday 17 July 2026

 

Forecast Maximums


Friday night
10+ Very High Risk



Saturday
10 - High Risk



Saturday night
6 - Moderate Risk



Sunday
2 - Low Risk




Issued at:

5:00 PM EDT Friday 17 July 2026

 

The AQHI is an initiative between Environment Canada, Health Canada and the Province of Ontario.

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