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 | |
|---|---|---|---|---|---|---|
| Uniondale | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Rockville Centre | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Baldwin | NY | 75.2 | Grade B | 7.5 | Stable | View |
| East Elmhurst | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Copiague | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Garden City | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Merrick | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Massapequa | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Laurelton | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Cambria Heights | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Hollis | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Brooklyn Heights | NY | 75.2 | Grade B | 7.5 | Stable | View |
| North Bellmore | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Lynbrook | NY | 75.2 | Grade B | 7.5 | Stable | View |
| East Massapequa | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Kew Gardens | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Wantagh | NY | 75.2 | Grade B | 7.5 | Stable | View |
| West Hempstead | NY | 75.2 | Grade B | 7.5 | Stable | View |
| North Massapequa | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Massapequa Park | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Woodmere | NY | 75.2 | Grade B | 7.5 | Stable | View |
| North Valley Stream | NY | 75.2 | Grade B | 7.5 | Stable | View |
| Sacramento | CA | 75.1 | Grade B | 7.4 | Improving β | View |
| Santa Barbara | CA | 75.1 | Grade B | 7.3 | Stable | View |
| Ventura | CA | 75.1 | Grade B | 7.3 | Stable | View |
| West Sacramento | CA | 75.1 | Grade B | 7.4 | Improving β | View |
| Florin | CA | 75.1 | Grade B | 7.4 | Improving β | View |
| Laguna | CA | 75.1 | Grade B | 7.4 | Improving β | View |
| Decatur | IL | 74.9 | Grade B | 7.5 | Improving β | View |
| Chester | PA | 74.9 | Grade B | 7.5 | Improving β | View |
| Springfield | IL | 74.9 | Grade B | 7.5 | Improving β | View |
| Springfield | PA | 74.9 | Grade B | 7.5 | Improving β | View |
| Mattoon | IL | 74.9 | Grade B | 7.5 | Improving β | View |
| Hickory | NC | 74.8 | Grade B | 7.6 | Stable | View |
| Statesville | NC | 74.8 | Grade B | 7.6 | Stable | View |
| Shelby | NC | 74.8 | Grade B | 7.6 | Stable | View |
| Boone | NC | 74.8 | Grade B | 7.6 | Stable | View |
| Lenoir | NC | 74.8 | Grade B | 7.6 | Stable | View |
| Morganton | NC | 74.8 | Grade B | 7.6 | Stable | View |
| Apple Valley | MN | 74.7 | Grade B | 7.3 | Stable | View |
| Bloomington | MN | 74.7 | Grade B | 7.3 | Stable | View |
| Eagan | MN | 74.7 | Grade B | 7.3 | Stable | View |
| Burnsville | MN | 74.7 | Grade B | 7.3 | Stable | View |
| Cottage Grove | MN | 74.7 | Grade B | 7.3 | Stable | View |
| Inver Grove Heights | MN | 74.7 | Grade B | 7.3 | Stable | View |
| Savage | MN | 74.7 | Grade B | 7.3 | Stable | View |
| Rosemount | MN | 74.7 | Grade B | 7.3 | Stable | View |
| Hastings | MN | 74.7 | Grade B | 7.3 | Stable | View |
| Homestead | FL | 74.6 | Grade B | 7.3 | Worsening β | View |
| Kansas City | MO | 74.6 | Grade B | 7.6 | Stable | View |