Hamilton West: Hourly Fine Particulate Matter PM_2.5 Concentrations

From June 14, 2025 EDT to June 16, 2025 EDT.

Notes:

Effective January 1, 2013, the PM_2.5 monitoring method was changed in Ontario. For more information, visit Frequently Asked Questions.
The pollutant concentrations on this web page are based on automatically polled data and have not undergone final verification.