Lisbon, Ohio Air Quality
Lisbon air quality today — the AQI, the main pollutant, and whether it’s safe to exercise outside right now
Lisbon, OH · Air quality right now
The air quality index in Lisbon, OH is 31 (Good) right now — safe for outdoor activity.
Is it safe to be outside in Lisbon today?
AQI 31 Yes — air quality is Good
Air is clean — great for outdoor activity.Main pollutant: PM2.5Observed 10:00 AM EDT
Pollutants right now
- PM2.57.6 µg/m³Main pollutantfine particles — smoke, exhaust, soot
- PM107.7 µg/m³coarse particles — dust, pollen, ash
- Ozone59 µg/m³smog — builds on hot, sunny days
- NO₂4.0 µg/m³nitrogen dioxide — traffic, combustion
ExerciseOK to run — no air-quality limits on outdoor exercise.
How to read Lisbon’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 Lisbon
Across the EPA’s county records from 2020 to 2025, Lisbon’s cleanest year was 2020 (median AQI 10) and its most polluted was 2021 (median AQI 16); the typical (median) day has held roughly steady since 2020.
| Year | Median AQI | Unhealthy+ | Main pollutant | USG | Moderate | Good |
|---|---|---|---|---|---|---|
| 2020 | 10 | 0 | PM10 | 0 | 0 | 48 |
| 2021 | 16 | 0 | PM10 | 0 | 0 | 61 |
| 2022 | 12 | 0 | PM10 | 0 | 0 | 61 |
| 2023 | 11 | 0 | PM10 | 0 | 1 | 60 |
| 2024 | 12 | 0 | PM10 | 0 | 0 | 63 |
| 2025 | 12 | 0 | PM10 | 0 | 0 | 61 |
“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 Lisbon?
- No day in Lisbon's county topped AQI 100 in the EPA's 2020–2025 records. The highest median AQI came in 2021, at 16.
- How many unhealthy air days does Lisbon have?
- None: across 2020–2025, no day in Lisbon's county had an AQI above 100 in the EPA's records (355 days reported).
- What's the main air pollutant in Lisbon?
- PM10: it drove Lisbon's county AQI on the most days in every year of the EPA's 2020–2025 records.