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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 | |
|---|---|---|---|---|---|---|
| Crest Hill | IL | 73.4 | Grade B | 7.8 | Improving ↓ | View |
| Corinth | TX | 73.4 | Grade B | 7.7 | Stable | View |
| Mokena | IL | 73.4 | Grade B | 7.8 | Improving ↓ | View |
| Frankfort | IL | 73.4 | Grade B | 7.8 | Improving ↓ | View |
| Bourbonnais | IL | 73.4 | Grade B | 7.8 | Improving ↓ | View |
| Goodings Grove | IL | 73.4 | Grade B | 7.8 | Improving ↓ | View |
| Ottawa | IL | 73.4 | Grade B | 7.8 | Improving ↓ | View |
| Shorewood | IL | 73.4 | Grade B | 7.8 | Improving ↓ | View |
| Hendersonville | TN | 73.2 | Grade B | 7.8 | Worsening ↑ | View |
| Bowling Green | TN | 73.2 | Grade B | 7.8 | Worsening ↑ | View |
| Gallatin | TN | 73.2 | Grade B | 7.8 | Worsening ↑ | View |
| Mount Juliet | TN | 73.2 | Grade B | 7.8 | Worsening ↑ | View |
| Lebanon | TN | 73.2 | Grade B | 7.8 | Worsening ↑ | View |
| Goodlettsville | TN | 73.2 | Grade B | 7.8 | Worsening ↑ | View |
| Springfield | TN | 73.2 | Grade B | 7.8 | Worsening ↑ | View |
| Brawley | CA | 73.1 | Grade B | 7.7 | Improving ↓ | View |
| Marrero | LA | 73.1 | Grade B | 7.6 | Stable | View |
| Warren | OH | 73.1 | Grade B | 7.8 | Worsening ↑ | View |
| Harvey | LA | 73.1 | Grade B | 7.6 | Stable | View |
| Niles | OH | 73.1 | Grade B | 7.8 | Worsening ↑ | View |
| Gretna | LA | 73.1 | Grade B | 7.6 | Stable | View |
| Kenner | LA | 72.9 | Grade B | 7.6 | Stable | View |
| Metairie Terrace | LA | 72.9 | Grade B | 7.6 | Stable | View |
| Houma | LA | 72.9 | Grade B | 7.6 | Stable | View |
| Laplace | LA | 72.9 | Grade B | 7.6 | Stable | View |
| Hammond | LA | 72.9 | Grade B | 7.6 | Stable | View |
| Bayou Cane | LA | 72.9 | Grade B | 7.6 | Stable | View |
| East Chicago | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Marysville | WA | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Everett | WA | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Chicago Lawn | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| South Shore | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Auburn Gresham | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Ashburn | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Gage Park | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| New City | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Bridgeport | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| West Lawn | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Greater Grand Crossing | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| West Englewood | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Chatham | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Lake Stevens | WA | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| South Chicago | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Hyde Park | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| North Creek | WA | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Englewood | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Woodlawn | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Picnic Point-North Lynnwood | WA | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Near South Side | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |
| Grand Boulevard | IN | 72.8 | Grade B | 7.9 | Improving ↓ | View |