Air quality in Colombo today
Sri Lanka · Updated Friday 05:30 (local time) · Model data from the Copernicus Atmosphere Monitoring Service
Good European AQI
Clean air. A great time to be outside.
Pollutants right now
| Pollutant | Value | Level |
|---|---|---|
| PM2.5 | 4 µg/m³ | Good |
| PM10 | 6 µg/m³ | Good |
| NO₂ | 7 µg/m³ | Good |
| O₃ | 22 µg/m³ | Good |
The pollutant that matters most in Colombo right now is O₃.
Forecast: next 24 hours
The air in Colombo should stay good to fair for the next 24 hours. The cleanest hour is expected around Sat 02:30.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Fri 06:30 | 21 | Fair | 5 |
| Fri 09:30 | 23 | Fair | 6 |
| Fri 12:30 | 23 | Fair | 7 |
| Fri 15:30 | 25 | Fair | 8 |
| Fri 18:30 | 32 | Fair | 10 |
| Fri 21:30 | 32 | Fair | 7 |
| Sat 00:30 | 23 | Fair | 5 |
| Sat 03:30 | 15 | Good | 4 |
The last 30 days
Over the last 30 days the average daily AQI in Colombo was 34, with 0 day(s) rated poor or worse. The cleanest day was 23 Sept, the most polluted 10 Sept.
Questions and answers
- Is the air in Colombo good today?
- Right now the European Air Quality Index in Colombo is 15, which is good. Clean air. A great time to be outside.
- What pollutes the air in Colombo?
- At the moment O₃ contributes most to the air quality index in Colombo. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Colombo be cleanest?
- The air in Colombo should stay good to fair for the next 24 hours. The cleanest hour is expected around Sat 02:30.
- 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.