26
Good · Dominant pollutant: Ozone (O₃)
Air quality is satisfactory; air pollution poses little or no risk.
The current Air Quality Index (AQI) in Ottawa is 26, categorized as Good. Air quality is satisfactory; air pollution poses little or no risk.
Pollutants & conditions
| Measurement | Value |
|---|
| PM2.5 | 5 |
| Ozone (O₃) | 26.4 |
| Nitrogen Dioxide (NO₂) | 1.6 |
| Sulfur Dioxide (SO₂) | 0.2 |
| Carbon Monoxide (CO) | 5 |
| Temperature (°C) | 8.8 |
| Humidity (%) | 50 |
| Pressure (hPa) | 1028.2 |
| Wind (m/s) | 1.6 |
PM2.5 forecast
| Date | Avg | Min | Max |
|---|
| 2026-05-19 | 45 | 36 | 54 |
| 2026-05-20 | 11 | 3 | 33 |
| 2026-05-21 | 3 | 2 | 5 |
| 2026-05-22 | 12 | 6 | 21 |
| 2026-05-23 | 13 | 9 | 22 |
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