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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 | |
|---|---|---|---|---|---|---|
| Linden | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Marlboro | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| New Berlin | WI | 77.4 | Grade B | 7.1 | Improving ↓ | View |
| Brookfield | WI | 77.4 | Grade B | 7.1 | Improving ↓ | View |
| Menomonee Falls | WI | 77.4 | Grade B | 7.1 | Improving ↓ | View |
| West Bend | WI | 77.4 | Grade B | 7.1 | Improving ↓ | View |
| Long Branch | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Westfield | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Voorhees | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Muskego | WI | 77.4 | Grade B | 7.1 | Improving ↓ | View |
| South Plainfield | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Carteret | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Watertown | WI | 77.4 | Grade B | 7.1 | Improving ↓ | View |
| Old Bridge | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Scotch Plains | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Terrytown | LA | 77.4 | Grade B | 7.1 | Improving ↓ | View |
| South Old Bridge | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Cranford | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| North Plainfield | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Somerset | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Summit | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Great Kills | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Woodrow | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Germantown | WI | 77.4 | Grade B | 7.1 | Improving ↓ | View |
| Woodbridge | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Rossville | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Iselin | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Morristown | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Colonia | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Tinton Falls | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Avenel | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| South River | NJ | 77.4 | Grade B | 7.1 | Stable | View |
| Flint | MI | 77.3 | Grade B | 6.8 | Stable | View |
| Youngstown | OH | 77.3 | Grade B | 7.1 | Improving ↓ | View |
| Rapid City | SD | 77.3 | Grade B | 6.9 | Worsening ↑ | View |
| Boardman | OH | 77.3 | Grade B | 7.1 | Improving ↓ | View |
| Austintown | OH | 77.3 | Grade B | 7.1 | Improving ↓ | View |
| Burton | MI | 77.3 | Grade B | 6.8 | Stable | View |
| New Castle | OH | 77.3 | Grade B | 7.1 | Improving ↓ | View |
| Allen Park | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Westland | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Taylor | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Lincoln Park | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Southgate | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Garden City | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Wyandotte | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Inkster | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Romulus | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Trenton | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |
| Wayne | MI | 77.2 | Grade B | 7.1 | Improving ↓ | View |