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Utah air quality today

Updated · LIVE · 2 metros tracked

Across the 2 Utah metros we measure, air is worst right now in Salt Lake City at AQI 44 (Good) and cleanest in Provo at AQI 44.

Every Utah metro we track

#MetroAQIUV nowDominant
1 Salt Lake City 44Good 5.5 O3
2 Provono page yet 44Good 6 O3

Sun over Utah today

The strongest UV in Utah today is 8.9 (Very High) in Provo, arriving around 1pm local time. The mildest of the 2 metros we model here peaks at 8.4 in Salt Lake City.

8.9 Provo 1pm8.4 Salt Lake City 1pm

UV is modelled, not measured — unlike the AQI above it, which comes off an instrument. Hour by hour in Salt Lake City →

What stands behind these Utah numbers

2 of the 2 metros here report from a named regulatory monitor — Salt Lake City, Provo. The dominant pollutant across Utah today is O3.

We track 2 metropolitan areas in Utah, not the whole state, and 1 of them has a page of its own. There is no state-wide average here on purpose: averaging 2 metros into one figure would invent a value for all the ground between them. How we measure, and what we refuse to estimate →

Neighbouring states

Smoke and inversions do not stop at a state line, so when Utah looks wrong the answer is often next door.

ArizonaColoradoIdahoNevadaNew MexicoWyoming
Worst air in the US right nowHow Utah compares against every metro we track What the number meansEPA bands, and where “unhealthy for everyone” starts

Updated