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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 | |
|---|---|---|---|---|---|---|
| Ashtabula | OH | 84.9 | Grade B | 5.8 | Improving ↓ | View |
| Eastlake | OH | 84.9 | Grade B | 5.8 | Improving ↓ | View |
| Springfield | OR | 84.8 | Grade B | 5.5 | Improving ↓ | View |
| Pawtucket | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Kingsport | TN | 84.8 | Grade B | 5.8 | Improving ↓ | View |
| Johnson City | TN | 84.8 | Grade B | 5.8 | Improving ↓ | View |
| Attleboro | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Woonsocket | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Cumberland | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Franklin | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Bristol | TN | 84.8 | Grade B | 5.8 | Improving ↓ | View |
| Smithfield | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Lincoln | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Norton | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Central Falls | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Bristol | TN | 84.8 | Grade B | 5.8 | Improving ↓ | View |
| North Attleborough Center | RI | 84.8 | Grade B | 5.7 | Stable | View |
| Folsom | CA | 84.4 | Grade B | 5.8 | Stable | View |
| Salinas | CA | 84.4 | Grade B | 5.8 | Worsening ↑ | View |
| Union City | NJ | 84.4 | Grade B | 5.8 | Improving ↓ | View |
| Manhattan | NJ | 84.4 | Grade B | 5.8 | Improving ↓ | View |
| Astoria | NJ | 84.4 | Grade B | 5.8 | Improving ↓ | View |
| North Bergen | NJ | 84.4 | Grade B | 5.8 | Improving ↓ | View |
| West New York | NJ | 84.4 | Grade B | 5.8 | Improving ↓ | View |
| Hell's Kitchen | NJ | 84.4 | Grade B | 5.8 | Improving ↓ | View |
| El Dorado Hills | CA | 84.4 | Grade B | 5.8 | Stable | View |
| Orangevale | CA | 84.4 | Grade B | 5.8 | Stable | View |
| Seaside | CA | 84.4 | Grade B | 5.8 | Worsening ↑ | View |
| Fair Oaks | CA | 84.4 | Grade B | 5.8 | Stable | View |
| Monterey | CA | 84.4 | Grade B | 5.8 | Worsening ↑ | View |
| Soledad | CA | 84.4 | Grade B | 5.8 | Worsening ↑ | View |
| Marina | CA | 84.4 | Grade B | 5.8 | Worsening ↑ | View |
| Granite Bay | CA | 84.4 | Grade B | 5.8 | Stable | View |
| Lyndhurst | NJ | 84.4 | Grade B | 5.8 | Improving ↓ | View |
| Secaucus | NJ | 84.4 | Grade B | 5.8 | Improving ↓ | View |
| Rutherford | NJ | 84.4 | Grade B | 5.8 | Improving ↓ | View |
| Cameron Park | CA | 84.4 | Grade B | 5.8 | Stable | View |
| Prunedale | CA | 84.4 | Grade B | 5.8 | Worsening ↑ | View |
| Greenfield | CA | 84.4 | Grade B | 5.8 | Worsening ↑ | View |
| Davie | FL | 84.1 | Grade B | 5.9 | Stable | View |
| Altoona | PA | 84.1 | Grade B | 5.9 | Improving ↓ | View |
| Pembroke Pines | FL | 84.1 | Grade B | 5.9 | Stable | View |
| Hollywood | FL | 84.1 | Grade B | 5.9 | Stable | View |
| Miramar | FL | 84.1 | Grade B | 5.9 | Stable | View |
| Miami Gardens | FL | 84.1 | Grade B | 5.9 | Stable | View |
| Plantation | FL | 84.1 | Grade B | 5.9 | Stable | View |
| Weston | FL | 84.1 | Grade B | 5.9 | Stable | View |
| Carol City | FL | 84.1 | Grade B | 5.9 | Stable | View |
| West Hollywood | FL | 84.1 | Grade B | 5.9 | Stable | View |
| Country Club | FL | 84.1 | Grade B | 5.9 | Stable | View |