Freedom#69 of 102 · Added July 22, 2026
Clean Air
Average fine-particle pollution, µg/m³
Data: America’s Health Rankings (EPA data), 2025 ↗nhmaps.com/72
At 5.0 micrograms per cubic meter, New Hampshire has the cleanest air east of the Mississippi and sits right at the WHO guideline. Pennsylvania breathes twice as heavy.
Average fine-particle pollution (PM2.5) (micrograms per cubic meter, 2022-2024)
Map: Visual Capitalist (data: America's Health Rankings 2025, US EPA) ↗Data: America’s Health Rankings (EPA data), 2025 ↗Found via @GregMooreNH ↗
View the data (50 states)
| # | State | Value |
|---|---|---|
| 1 | Wyoming | 4.1 |
| 2 | Hawaii | 4.7 |
| 3 | New Hampshire | 5.0 |
| 4 | South Dakota | 5.7 |
| 5 | Alaska | 5.9 |
| 5 | Maine | 5.9 |
| 5 | New Mexico | 5.9 |
| 8 | Colorado | 6.0 |
| 8 | Vermont | 6.0 |
| 10 | Montana | 6.5 |
| 11 | Nebraska | 6.6 |
| 12 | Rhode Island | 6.7 |
| 13 | Virginia | 7.2 |
| 14 | Maryland | 7.4 |
| 15 | Utah | 7.5 |
| 16 | Florida | 7.6 |
| 16 | Idaho | 7.6 |
| 16 | Missouri | 7.6 |
| 19 | Alabama | 7.7 |
| 19 | Massachusetts | 7.7 |
| 19 | Washington | 7.7 |
| 19 | West Virginia | 7.7 |
| 23 | New York | 7.8 |
| 23 | Tennessee | 7.8 |
| 25 | New Jersey | 7.9 |
| 25 | North Carolina | 7.9 |
| 27 | Connecticut | 8.1 |
| 27 | Kentucky | 8.1 |
| 29 | Oregon | 8.2 |
| 30 | Mississippi | 8.3 |
| 30 | North Dakota | 8.3 |
| 32 | Iowa | 8.4 |
| 32 | Louisiana | 8.4 |
| 32 | Minnesota | 8.4 |
| 32 | Nevada | 8.4 |
| 32 | South Carolina | 8.4 |
| 37 | Arkansas | 8.5 |
| 37 | Oklahoma | 8.5 |
| 39 | Wisconsin | 8.6 |
| 40 | Arizona | 8.7 |
| 40 | Kansas | 8.7 |
| 42 | Georgia | 9.2 |
| 43 | Texas | 9.4 |
| 44 | Indiana | 9.5 |
| 45 | Delaware | 9.7 |
| 46 | Ohio | 9.8 |
| 47 | Illinois | 10.3 |
| 48 | Michigan | 10.4 |
| 49 | Pennsylvania | 11.0 |
| 50 | California | 11.7 |