Hamilton Downtown: Hourly Sulphur Dioxide SO2 Concentrations

From March 29, 2023 EDT to March 31, 2023 EDT.


  • Ontario 1-hour Ambient Air Quality Criterion (AAQC) for SO2 = 40 ppb.
  • The pollutant concentrations on this web page are based on automatically polled data and have not undergone final verification.

Show as Table