Paonia, Colorado Air Quality
Paonia air quality today — the AQI, the main pollutant, and whether it’s safe to exercise outside right now
Paonia, CO · Air quality right now
The air quality index in Paonia, CO is 74 (Moderate) right now — acceptable for most people.
Is it safe to be outside in Paonia today?
AQI 74 Yes — air quality is Moderate
Fine for most; unusually sensitive people can take it easy.Main pollutant: PM2.5Observed 2:00 PM MST
Pollutants right now
- PM2.59.8 µg/m³Main pollutantfine particles — smoke, exhaust, soot
- PM1013 µg/m³coarse particles — dust, pollen, ash
- Ozone98 µg/m³smog — builds on hot, sunny days
- NO₂0.5 µg/m³nitrogen dioxide — traffic, combustion
ExerciseOK to run for most; sensitive athletes can ease the intensity.
How to read Paonia’s air quality
Guides: The AQI Scale, Explained · Air Quality Alerts, Decoded · How to Read a Wildfire Smoke Map · Why Wildfire Smoke Travels 1,000 Miles.
Air quality over time in Paonia
Across the EPA’s county records from 2020 to 2025, Paonia’s cleanest year was 2025 (median AQI 29) and its most polluted was 2022 (median AQI 44); the typical (median) day has trended cleaner since 2020.
| Year | Median AQI | Unhealthy+ | Main pollutant | USG | Moderate | Good |
|---|---|---|---|---|---|---|
| 2020 | 41 | 0 | Ozone | 0 | 53 | 312 |
| 2021 | 43 | 0 | Ozone | 2 | 69 | 294 |
| 2022 | 44 | 0 | Ozone | 0 | 18 | 125 |
| 2025 | 29 | 0 | PM2.5 | 1 | 29 | 179 |
“USG” is Unhealthy for Sensitive Groups (AQI 101–150); “Unhealthy+” combines the Unhealthy, Very Unhealthy, and Hazardous days. In 2024 the EPA tightened the annual fine-particle (PM2.5) standard to 9 µg/m³ from the previous 12 µg/m³, so counties near the old limit read worse against the new one. Source: EPA AQS annual summaries, 2020–2025.
Frequently asked
- What was the worst year for air quality in Paonia?
- In the EPA's 2020–2025 county records, 2021 had the most days above AQI 100: 2 days (2 Unhealthy for Sensitive Groups, 0 Unhealthy or worse). The highest median AQI came in 2022 (44; 2021's was 43).
- How many unhealthy air days does Paonia have?
- Across 2020–2025, under 1% of the days reported for Paonia's county had an AQI above 100 (3 of 1082), about 1 day a year. 2025 had 1 day.
- What's the main air pollutant in Paonia?
- Ozone drove Paonia's county AQI on the most days in 3 of 4 years (2020–2025); PM2.5 in 2025.