Duncan - Air Quality Health Index

Calculated at: 1:00 AM PDT Friday 4 July 2025

1Low 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.

Issued at: 5:00 PM PDT Thursday 3 July 2025

Thursday night

2 - Low Risk

Friday

2 - Low Risk

Friday night

2 - Low Risk

Saturday

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...?

People who are most vulnerable and sensitive to the effects of air pollution should learn to recognize when air quality is deteriorating and protect their health accordingly.


The AQHI is an initiative of Environment Canada, Health Canada, the B.C. Ministry of Environment and Parks, the B.C. Ministry of Healthy Living and Sport, the Vancouver Island Health Authority, and the B.C. Lung Association.