Air quality in Chennai today
India · Updated Friday 08:30 (local time) · Model data from the Copernicus Atmosphere Monitoring Service
Fair European AQI
Fine for almost everyone.
Pollutants right now
| Pollutant | Value | Level |
|---|---|---|
| PM2.5 | 9 µg/m³ | Good |
| PM10 | 9 µg/m³ | Good |
| NO₂ | 16 µg/m³ | Good |
| O₃ | 42 µg/m³ | Good |
The pollutant that matters most in Chennai right now is PM2.5.
Forecast: next 24 hours
Over the next 24 hours the air in Chennai is expected to be worst around Fri 14:30 (AQI 64, poor). The cleanest hour is expected around Fri 09:30.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Fri 09:30 | 27 | Fair | 9 |
| Fri 12:30 | 50 | Moderate | 12 |
| Fri 15:30 | 63 | Poor | 15 |
| Fri 18:30 | 43 | Moderate | 18 |
| Fri 21:30 | 42 | Moderate | 19 |
| Sat 00:30 | 40 | Fair | 15 |
| Sat 03:30 | 34 | Fair | 12 |
| Sat 06:30 | 27 | Fair | 9 |
The last 30 days
Over the last 30 days the average daily AQI in Chennai was 53, with 6 day(s) rated poor or worse. The cleanest day was 30 Aug, the most polluted 19 Sept.
Questions and answers
- Is the air in Chennai good today?
- Right now the European Air Quality Index in Chennai is 27, which is fair. Fine for almost everyone.
- What pollutes the air in Chennai?
- At the moment PM2.5 contributes most to the air quality index in Chennai. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Chennai be cleanest?
- Over the next 24 hours the air in Chennai is expected to be worst around Fri 14:30 (AQI 64, poor). The cleanest hour is expected around Fri 09:30.
- Where does this data come from?
- Wheezair shows model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), served by Open-Meteo: about 11 km resolution in Europe and 40 km elsewhere, updated daily. They are not station measurements, so a busy street can be worse than its city's value.