Explore Air Quality by City
Your entry point to US city air quality data. Check AQI today, compare median AQI in 2021, and see unhealthy days per year for any city. Browse EPA-based Clean Air Scores, see how cities compare in our National Rankings, and learn about our data sources in the Methodology.
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| City | State | Score | Grade | PM2.5 (Ann.) | Trend | |
|---|---|---|---|---|---|---|
| Evans | GA | 60.3 | Grade C | 10 | Stable | View |
| North Augusta | GA | 60.3 | Grade C | 10 | Stable | View |
| Phoenix | AZ | 60.2 | Grade C | 9.3 | Worsening β | View |
| Central City | AZ | 60.2 | Grade C | 9.3 | Worsening β | View |
| Encanto | AZ | 60.2 | Grade C | 9.3 | Worsening β | View |
| Albany | GA | 60 | Grade C | 9.3 | Improving β | View |
| Tifton | GA | 60 | Grade C | 9.3 | Improving β | View |
| Bismarck | ND | 59.9 | Grade C | 7.7 | Worsening β | View |
| Mandan | ND | 59.9 | Grade C | 7.7 | Worsening β | View |
| Sunrise Manor | NV | 59.2 | Grade C | 8.8 | Worsening β | View |
| Madera | CA | 59.1 | Grade C | 9.1 | Improving β | View |
| Chowchilla | CA | 59.1 | Grade C | 9.1 | Improving β | View |
| Deer Park | TX | 59 | Grade C | 9.7 | Worsening β | View |
| Pasadena | TX | 59 | Grade C | 9.7 | Worsening β | View |
| Pearland | TX | 59 | Grade C | 9.7 | Worsening β | View |
| League City | TX | 59 | Grade C | 9.7 | Worsening β | View |
| Friendswood | TX | 59 | Grade C | 9.7 | Worsening β | View |
| Channelview | TX | 59 | Grade C | 9.7 | Worsening β | View |
| Alvin | TX | 59 | Grade C | 9.7 | Worsening β | View |
| Cloverleaf | TX | 59 | Grade C | 9.7 | Worsening β | View |
| Dickinson | TX | 59 | Grade C | 9.7 | Worsening β | View |
| South Houston | TX | 59 | Grade C | 9.7 | Worsening β | View |
| Port Arthur | TX | 58.5 | Grade C | 10.1 | Worsening β | View |
| Beaumont | TX | 58.5 | Grade C | 10.1 | Worsening β | View |
| Lake Charles | TX | 58.5 | Grade C | 10.1 | Worsening β | View |
| Sulphur | TX | 58.5 | Grade C | 10.1 | Worsening β | View |
| Orange | TX | 58.5 | Grade C | 10.1 | Worsening β | View |
| Nederland | TX | 58.5 | Grade C | 10.1 | Worsening β | View |
| Ponca City | OK | 58.4 | Grade C | 9 | Worsening β | View |
| Altamont | OR | 58.4 | Grade C | 8.1 | Improving β | View |
| Enid | OK | 58.4 | Grade C | 9 | Worsening β | View |
| Stillwater | OK | 58.4 | Grade C | 9 | Worsening β | View |
| Klamath Falls | OR | 58.4 | Grade C | 8.1 | Improving β | View |
| Dallas | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Plano | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Garland | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Irving | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Grand Prairie | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Mesquite | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Carrollton | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Richardson | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Allen | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Rowlett | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| DeSoto | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Grapevine | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Cedar Hill | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Wylie | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Rockwall | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Coppell | TX | 58.3 | Grade C | 10.1 | Worsening β | View |
| Duncanville | TX | 58.3 | Grade C | 10.1 | Worsening β | View |