SmogRank / World / United States / Utah / March 2024
Most polluted cities in Utah, United States, March 2024
18 cities in Utah, United States ranked by their average PM2.5 over the 31 days. Worst: Orem at 7.8 µg/m³, #791 of 1,643 cities in the world. Cleanest: Price at 2.0. A city needs measurements on 70% of the days to be ranked.
OpenAQ's archive, where our readings come from, has almost none from the United States for March 20, 2024: cities in the United States have it from the EPA's own records of the same monitors. Why.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Orem 3%
- 2West Jordan 3%
- 3Millcreek 0%
- 4Salt Lake City 0%
- 5Cedar Hills 0%
- 6Moab 0%
- 6Bountiful 0%
- 8Magna 0%
- 8Spanish Fork 0%
- 10Herriman 0%
- 11Vernal 0%
- 12Smithfield 0%
- 12Stansbury park 0%
- 14North Ogden 0%
- 15Enoch 0%
- 15Roosevelt 0%
- 17Hurricane 0%
- 18Price 0%
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
All cities in the world, March 2024 · All cities in United States, March 2024 · Utah now
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SmogRank, most polluted cities in Utah, United States, PM2.5, March 2024, smogrank.com/us/region/utah/history/2024-03 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.