Chennai air quality
Updated 17/10, 10:30
The data may not be up to date.
Current AQI
US EPA scale · observed at 10:30
57
ModerateUnusually sensitive people should limit prolonged outdoor exertion.
Pollutants
Current concentrations, µg/m³
| Pollutant | Concentration | Description |
|---|---|---|
| PM2.5 | 16,5 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 16,5 µg/m³ | Particles ≤ 10 µm |
| O₃ | 107 µg/m³ | Ozone |
| NO₂ | 18,8 µg/m³ | Nitrogen dioxide |
| SO₂ | 31,3 µg/m³ | Sulphur dioxide |
| CO | 504 µg/m³ | Carbon monoxide |
AQI, next 22 hours
Show data table
| Time | AQI | Level |
|---|---|---|
| 12:30 | 58 | Moderate |
| 13:30 | 58 | Moderate |
| 14:30 | 59 | Moderate |
| 15:30 | 66 | Moderate |
| 16:30 | 86 | Moderate |
| 17:30 | 102 | Unhealthy for sensitive groups |
| 18:30 | 111 | Unhealthy for sensitive groups |
| 19:30 | 116 | Unhealthy for sensitive groups |
| 20:30 | 116 | Unhealthy for sensitive groups |
| 21:30 | 111 | Unhealthy for sensitive groups |
| 22:30 | 101 | Unhealthy for sensitive groups |
| 23:30 | 87 | Moderate |
| 00:30 | 73 | Moderate |
| 01:30 | 64 | Moderate |
| 02:30 | 64 | Moderate |
| 03:30 | 64 | Moderate |
| 04:30 | 63 | Moderate |
| 05:30 | 63 | Moderate |
| 06:30 | 63 | Moderate |
| 07:30 | 62 | Moderate |
| 08:30 | 62 | Moderate |
| 09:30 | 61 | Moderate |