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Understand its air.
Explore historical PM2.5 patterns, available local observations, and the context behind each city’s score. 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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Local observations and historical context for major cities.
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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 ↑ | View |
| Central City | AZ | 60.2 | Grade C | 9.3 | Worsening ↑ | View |
| Encanto | AZ | 60.2 | Grade C | 9.3 | Worsening ↑ | View |
| Albany | GA | 60 | Grade C | 9.3 | Improving ↓ | View |
| Tifton | GA | 60 | Grade C | 9.3 | Improving ↓ | View |
| Bismarck | ND | 59.9 | Grade C | 7.7 | Worsening ↑ | View |
| Mandan | ND | 59.9 | Grade C | 7.7 | Worsening ↑ | View |
| Sunrise Manor | NV | 59.2 | Grade C | 8.8 | Worsening ↑ | View |
| Madera | CA | 59.1 | Grade C | 9.1 | Improving ↓ | View |
| Chowchilla | CA | 59.1 | Grade C | 9.1 | Improving ↓ | View |
| Deer Park | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| Pasadena | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| Pearland | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| League City | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| Friendswood | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| Channelview | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| Alvin | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| Cloverleaf | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| Dickinson | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| South Houston | TX | 59 | Grade C | 9.7 | Worsening ↑ | View |
| Port Arthur | TX | 58.5 | Grade C | 10.1 | Worsening ↑ | View |
| Beaumont | TX | 58.5 | Grade C | 10.1 | Worsening ↑ | View |
| Lake Charles | TX | 58.5 | Grade C | 10.1 | Worsening ↑ | View |
| Sulphur | TX | 58.5 | Grade C | 10.1 | Worsening ↑ | View |
| Orange | TX | 58.5 | Grade C | 10.1 | Worsening ↑ | View |
| Nederland | TX | 58.5 | Grade C | 10.1 | Worsening ↑ | View |
| Ponca City | OK | 58.4 | Grade C | 9 | Worsening ↑ | View |
| Altamont | OR | 58.4 | Grade C | 8.1 | Improving ↓ | View |
| Enid | OK | 58.4 | Grade C | 9 | Worsening ↑ | View |
| Stillwater | OK | 58.4 | Grade C | 9 | Worsening ↑ | View |
| Klamath Falls | OR | 58.4 | Grade C | 8.1 | Improving ↓ | View |
| Dallas | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Plano | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Garland | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Irving | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Grand Prairie | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Mesquite | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Carrollton | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Richardson | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Allen | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Rowlett | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| DeSoto | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Grapevine | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Cedar Hill | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Wylie | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Rockwall | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Coppell | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |
| Duncanville | TX | 58.3 | Grade C | 10.1 | Worsening ↑ | View |