Air quality in Altoona today
United States · Updated Friday 11:00 (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 | 2 µg/m³ | Good |
| PM10 | 2 µg/m³ | Good |
| NO₂ | 1 µg/m³ | Good |
| O₃ | 73 µg/m³ | Fair |
The pollutant that matters most in Altoona right now is O₃.
Forecast: next 24 hours
The air in Altoona should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 20:00.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Fri 12:00 | 29 | Fair | 2 |
| Fri 15:00 | 31 | Fair | 2 |
| Fri 18:00 | 27 | Fair | 2 |
| Fri 21:00 | 21 | Fair | 3 |
| Sat 00:00 | 24 | Fair | 3 |
| Sat 03:00 | 27 | Fair | 5 |
| Sat 06:00 | 27 | Fair | 5 |
| Sat 09:00 | 26 | Fair | 4 |
The last 30 days
Over the last 30 days the average daily AQI in Altoona was 30, with 0 day(s) rated poor or worse. The cleanest day was 21 Sept, the most polluted 10 Sept.
Questions and answers
- Is the air in Altoona good today?
- Right now the European Air Quality Index in Altoona is 27, which is fair. Fine for almost everyone.
- What pollutes the air in Altoona?
- At the moment O₃ contributes most to the air quality index in Altoona. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Altoona be cleanest?
- The air in Altoona should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 20:00.
- 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.