| Station | Location | O3 |
|---|---|---|
| Barrie | 83 Perry St. | 19 |
| Chatham | 435 Grand Ave. W. | 21 |
| Dorset | 1026 Bellwood Acres Rd. | 20 |
| Hamilton Downtown | Elgin St. Kelly St. | 22 |
| North Bay | Chippewa St. W., Dept. National Defence | 26 |
| Oshawa | Brittania Ave. W., Ep Taylor Stables | 20 |
| Ottawa Downtown | Rideau St. Wurtemburg St. | 22 |
| Sault Ste. Marie | Sault College | 20 |
| Thunder Bay | 421 James St. S. | 31 |
| Toronto Downtown | 55 John St. | 24 |
| Toronto North | 4905 Dufferin St., Eccc | 18 |
| Sudbury | 155 Elm St. | N/A |
Ontario's Ambient Air Monitoring Stations
Ozone O3 Concentrations for Monday, December 5, 2022, 4:00 am for Monday, December 5, 2022, 4:00 am
Note: The pollutant concentrations on this web page are based on automatically polled data and have not undergone final verification.
Note: N/A (Not Available) denotes invalid or missing data.
Ontario 1-hour AAQC for O3 = 80 ppb
