Air quality in Cheyenne today
United States · Updated Thursday 18:00 (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 | 4 µg/m³ | Good |
| PM10 | 5 µg/m³ | Good |
| NO₂ | 2 µg/m³ | Good |
| O₃ | 84 µg/m³ | Fair |
The pollutant that matters most in Cheyenne right now is O₃.
Forecast: next 24 hours
Over the next 24 hours the air in Cheyenne is expected to be worst around Fri 15:00 (AQI 41, moderate). The cleanest hour is expected around Thu 21:00.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Thu 19:00 | 27 | Fair | 4 |
| Thu 22:00 | 22 | Fair | 6 |
| Fri 01:00 | 24 | Fair | 7 |
| Fri 04:00 | 26 | Fair | 8 |
| Fri 07:00 | 31 | Fair | 10 |
| Fri 10:00 | 31 | Fair | 11 |
| Fri 13:00 | 35 | Fair | 5 |
| Fri 16:00 | 41 | Moderate | 4 |
The last 30 days
Over the last 30 days the average daily AQI in Cheyenne was 30, with 0 day(s) rated poor or worse. The cleanest day was 19 Sept, the most polluted 10 Sept.
Questions and answers
- Is the air in Cheyenne good today?
- Right now the European Air Quality Index in Cheyenne is 32, which is fair. Fine for almost everyone.
- What pollutes the air in Cheyenne?
- At the moment O₃ contributes most to the air quality index in Cheyenne. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Cheyenne be cleanest?
- Over the next 24 hours the air in Cheyenne is expected to be worst around Fri 15:00 (AQI 41, moderate). The cleanest hour is expected around Thu 21:00.
- 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.