≈ 18/yr
Unhealthy air days (Salt Lake)
Historical data
Coming soon
Long-run charts for this indicator are on the way.
Compared to the United States
Coming soon
Side-by-side comparison of Utah vs. the U.S. average.
National ranking
Utah ranks #26 of 33 states by average pm2.5.
| #1 | Kentucky | 0 |
| #2 | Louisiana | 0 |
| #3 | Vermont | 4 |
| #4 | Wyoming | 4 |
| #5 | South Dakota | 5.5 |
| #6 | Maine | 5.5 |
| #7 | Massachusetts | 6.4 |
| #8 | Rhode Island | 6.8 |
| #9 | Florida | 6.9 |
| #10 | New York | 6.9 |
| #11 | Delaware | 7 |
| #12 | Virginia | 7.6 |
| #13 | Wisconsin | 7.6 |
| #14 | Washington | 7.6 |
| #15 | Michigan | 8 |
| #16 | Tennessee | 8.1 |
| #17 | North Carolina | 8.1 |
| #18 | New Jersey | 8.4 |
| #19 | Missouri | 8.4 |
| #20 | Arizona | 8.5 |
| #21 | Georgia | 8.7 |
| #22 | Indiana | 8.9 |
| #23 | Ohio | 9.1 |
| #24 | Illinois | 9.1 |
| #25 | Minnesota | 10 |
| #26 | Utah | 18 |
| #27 | Colorado | 25 |
| #28 | Alaska | 30 |
| #29 | Montana | 35 |
| #30 | New Hampshire | 35 |
| #31 | Texas | 48 |
| #32 | Oregon | 85% |
| #33 | New Mexico | 300 |
Overview
The Salt Lake Valley experiences some of the worst winter air quality in the nation due to temperature inversions trapping pollutants. Key figures for Utah include Unhealthy air days (Salt Lake) of ≈ 18/yr, offering a clear snapshot of air quality in the state. Understanding air quality helps residents, businesses and policymakers compare Utah to national and regional benchmarks.
Did you know?
- Salt Lake City's winter inversions can trap smog for over a week at a time.