The Toronto West AQHI station will experience a temporary interruption in public data reporting from Friday, April 10 to Sunday, April 12 due to scheduled maintenance activities. Air quality information from other Toronto monitoring stations will remain available.
Friday, April 10, 2026, 11:00 am
Photo: Mississauga Ambient Air Monitoring Site
| Station information | |
|---|---|
| Station name: | Mississauga |
| Address: | 3359 Mississauga Rd. N., U Of T Campus |
| Latitude: | 43.546174 |
| Longitude: | -79.658797 |
| Station type: | Urban |
| Height of air intake: | 5 m |
| Elevation ASL: | 105 m |
| Pollutants measured: | O3PM2.5, NO2 |
| Pollutant | Measured 1-hour concentration |
|---|---|
| O3 | 15 ppb![Ozone [O3]graph](/images/icon_trend_up.svg){kind=icon} |
| PM2.5 | 5 µg/m3 |
| NO2 | 22.1 ppb |
| Pollutant | Ontario 1-hour AAQC |
|---|---|
| O3 | 80 ppb |
| NO2 | 200 ppb |
Note: N/A (not available) denotes invalid or missing data.
