Petawawa: Hourly Fine Particulate Matter PM2.5 Concentrations

From January 20, 2019 EST to January 22, 2019 EST.

Notes:

  • 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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