Hamilton Downtown: Hourly Fine Particulate Matter PM2.5 Concentrations
From June 30, 2016 EDT to July 2, 2016 EDT.
- Effective January 1, 2013, the PM2.5 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.
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