Markham air quality
Updated 12/10, 22:41
The data may not be up to date.
Current AQI
US EPA scale · observed at 22:00
65
ModerateUnusually sensitive people should limit prolonged outdoor exertion.
Pollutants
Current concentrations, µg/m³
| Pollutant | Concentration | Description |
|---|---|---|
| PM2.5 | 23,9 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 24 µg/m³ | Particles ≤ 10 µm |
| O₃ | 14 µg/m³ | Ozone |
| NO₂ | 51,8 µg/m³ | Nitrogen dioxide |
| SO₂ | 7,8 µg/m³ | Sulphur dioxide |
| CO | 458 µg/m³ | Carbon monoxide |
AQI, next 23 hours
Show data table
| Time | AQI | Level |
|---|---|---|
| 23:00 | 66 | Moderate |
| 00:00 | 67 | Moderate |
| 01:00 | 68 | Moderate |
| 02:00 | 68 | Moderate |
| 03:00 | 68 | Moderate |
| 04:00 | 67 | Moderate |
| 05:00 | 66 | Moderate |
| 06:00 | 65 | Moderate |
| 07:00 | 63 | Moderate |
| 08:00 | 62 | Moderate |
| 09:00 | 61 | Moderate |
| 10:00 | 60 | Moderate |
| 11:00 | 60 | Moderate |
| 12:00 | 60 | Moderate |
| 13:00 | 60 | Moderate |
| 14:00 | 60 | Moderate |
| 15:00 | 60 | Moderate |
| 16:00 | 61 | Moderate |
| 17:00 | 61 | Moderate |
| 18:00 | 61 | Moderate |
| 19:00 | 60 | Moderate |
| 20:00 | 59 | Moderate |
| 21:00 | 58 | Moderate |