Air quality in Castro today
Chile · Updated Thursday 22:00 (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 | 2 µg/m³ | Good |
| O₃ | 42 µg/m³ | Good |
The pollutant that matters most in Castro right now is O₃.
Forecast: next 24 hours
The air in Castro should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 22:00.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Thu 23:00 | 18 | Good | 5 |
| Fri 02:00 | 21 | Fair | 6 |
| Fri 05:00 | 22 | Fair | 6 |
| Fri 08:00 | 23 | Fair | 7 |
| Fri 11:00 | 33 | Fair | 11 |
| Fri 14:00 | 28 | Fair | 9 |
| Fri 17:00 | 24 | Fair | 7 |
| Fri 20:00 | 23 | Fair | 6 |
The last 30 days
Over the last 30 days the average daily AQI in Castro was 18, with 0 day(s) rated poor or worse. The cleanest day was 23 Sept, the most polluted 17 Sept.
Questions and answers
- Is the air in Castro good today?
- Right now the European Air Quality Index in Castro is 17, which is good. Clean air. A great time to be outside.
- What pollutes the air in Castro?
- At the moment O₃ contributes most to the air quality index in Castro. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Castro be cleanest?
- The air in Castro should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 22:00.
- 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.