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Nevada air quality today

Updated · LIVE · 2 metros tracked

Across the 2 Nevada metros we measure, air is worst right now in Reno at AQI 45 (Good) and cleanest in Las Vegas at AQI 40.

Every Nevada metro we track

#MetroAQIUV nowDominant
1 Reno 45Good 4.9 PM2.5
2 Las Vegasno page yet 40Good 5.9 O3

Sun over Nevada today

The strongest UV in Nevada today is 9.8 (Very High) in Las Vegas, arriving around 1pm local time. The mildest of the 2 metros we model here peaks at 9.5 in Reno.

9.8 Las Vegas 1pm9.5 Reno 1pm

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

What stands behind these Nevada numbers

2 of the 2 metros here report from a named regulatory monitor — Reno-Sparks, Las Vegas. The dominant pollutant across Nevada today is PM2.5 in some metros, O3 in others.

We track 2 metropolitan areas in Nevada, 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 Nevada looks wrong the answer is often next door.

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

Updated