Air quality in Koster today
South Africa · Updated Friday 02:00 (local time) · Model data from the Copernicus Atmosphere Monitoring Service
Moderate European AQI
Sensitive people may want to take it easier outdoors.
Pollutants right now
| Pollutant | Value | Level |
|---|---|---|
| PM2.5 | 17 µg/m³ | Fair |
| PM10 | 17 µg/m³ | Good |
| NO₂ | 9 µg/m³ | Good |
| O₃ | 65 µg/m³ | Fair |
The pollutant that matters most in Koster right now is PM2.5.
Forecast: next 24 hours
Over the next 24 hours the air in Koster is expected to be worst around Fri 16:00 (AQI 68, poor). The cleanest hour is expected around Fri 03:00.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Fri 03:00 | 42 | Moderate | 19 |
| Fri 06:00 | 44 | Moderate | 22 |
| Fri 09:00 | 51 | Moderate | 19 |
| Fri 12:00 | 66 | Poor | 18 |
| Fri 15:00 | 67 | Poor | 15 |
| Fri 18:00 | 58 | Moderate | 17 |
| Fri 21:00 | 43 | Moderate | 20 |
| Sat 00:00 | 43 | Moderate | 21 |
Questions and answers
- Is the air in Koster good today?
- Right now the European Air Quality Index in Koster is 41, which is moderate. Sensitive people may want to take it easier outdoors.
- What pollutes the air in Koster?
- At the moment PM2.5 contributes most to the air quality index in Koster. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Koster be cleanest?
- Over the next 24 hours the air in Koster is expected to be worst around Fri 16:00 (AQI 68, poor). The cleanest hour is expected around Fri 03:00.
- 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.