Hamilton Downtown: current Air Quality Health Index (AQHI)

Calculated at 5:00 pm EDT Monday, July 14, 2025

8

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

Forecast for Hamilton Downtown

• Forecast Air Quality Health Index maximums for Hamilton Downtown
• Issued at: 5:00 pm EDT July 14, 2025

Forecast Air Quality Health Index maximums for Hamilton Downtown

Period	Forecast maximum (Issued at 5:00 pm EDT July 14, 2025)
Monday night	7 - High Risk
Tuesday	5 - Moderate Risk

Health message for Hamilton Downtown

• Current Air Quality Health Index: 8
• Calculated at 5:00 pm EDT Monday, July 14, 2025
• Risk: High

At-risk population:

• Reduce or reschedule strenuous activities outdoors. Children and the elderly should also take it easy.
• Find out if you are at risk

General population:

• Reduce or reschedule strenuous activities outdoors, especially if you experience symptoms such as coughing and throat irritation.

See the Ontario Ministry of the Environment, Conservation and Parks air quality health messages.

Note: AQHI readings on this web page are based on automatically polled data and have not undergone final verification.