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AQI Calculations on 06/09/2026 1:00AM - 1:00AM

The EPA (Environmental Protection Agency) developed the AQI (Air Quality Index) to make reading ambient air data more understandable to the general public. When ambient air data is collected, the numbers are converted from their concentration levels into numbers on a scale. That scale is the pollutant's AQI value. (Click here for a more detailed description of the AQI scale). Below is a list of all of the latest AQI values collected.


Due to limited system resources and high volume, today's AQI calculations can no longer be sorted by columns. For a CSV file of these data, updated hourly, click here.


All data are collected real-time and have not been corrected nor validated.

Time *
(MST)
 Monitoring Location Pollutant Interval
(Hr)
 Air Quality AQI Avg.
1:00 AM ACAD O3 8 Good 38 41 PPB
1:00 AM ACC PM10 24 Good 19 20 µg/m3
1:00 AM ACC PM2.5 24 Good 31 5 µg/m3
1:00 AM ADB PM10 24 Good 42 45 µg/m3
1:00 AM ADB PM2.5 24 Good 37 6 µg/m3
1:00 AM ALA PM10 24 Good 27 29 µg/m3
1:00 AM ALA PM2.5 24 Good 29 5 µg/m3
1:00 AM ASPN O3 8 Good 41 44 PPB
1:00 AM ASPN2 PM10 24 Good 19 21 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 19 3 µg/m3
1:00 AM AURE O3 8 Good 39 42 PPB
1:00 AM BHWK O3 8 Good 42 45 PPB
1:00 AM BOU PM10 24 Good 25 27 µg/m3
1:00 AM BOU PM2.5 24 Good 30 5 µg/m3
1:00 AM BOUR O3 8 Good 32 35 PPB
1:00 AM CAMP NO2 1 Good 12 13 PPB
1:00 AM CAMP NO2 1 Good 12 13 PPB
1:00 AM CAMP O3 8 Good 37 40 PPB
1:00 AM CAMP PM10 24 Good 19 20 µg/m3
1:00 AM CAMP PM2.5 24 Good 34 6 µg/m3
1:00 AM CAN PM10 24 Good 23 25 µg/m3
1:00 AM CAN PM2.5 24 Good 23 4 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 15 16 PPB
1:00 AM CASA O3 8 Good 30 32 PPB
1:00 AM CASA PM10 24 Good 28 30 µg/m3
1:00 AM CASA PM2.5 24 Good 32 5 µg/m3
1:00 AM CCOL PM10 24 Good 24 26 µg/m3
1:00 AM CCOL PM2.5 24 Good 24 4 µg/m3
1:00 AM CHAT O3 8 Good 41 44 PPB
1:00 AM CHAT PM10 24 Good 22 24 µg/m3
1:00 AM CHAT PM2.5 24 Good 30 5 µg/m3
1:00 AM CTZ O3 8 Good 46 50 PPB
1:00 AM DELT PM10 24 Good 23 25 µg/m3
1:00 AM DELT PM2.5 24 Good 24 4 µg/m3
1:00 AM DELT PM2.5 24 Good 24 4 µg/m3
1:00 AM EVG O3 8 Good 39 42 PPB
1:00 AM FOS NO2 1 Good 6 6 PPB
1:00 AM FOS O3 8 Good 39 42 PPB
1:00 AM FTC CO 8 Good 0 0.0 PPM
1:00 AM FTC O3 8 Good 43 46 PPB
1:00 AM FTCF PM10 24 Good 21 23 µg/m3
1:00 AM FTCF PM2.5 24 Good 30 5 µg/m3
1:00 AM FTCW O3 8 Good 40 43 PPB
1:00 AM GJPB PM10 24 Good 15 16 µg/m3
1:00 AM GJPB PM2.5 24 Good 26 4 µg/m3
1:00 AM GREH PM10 24 Good 19 20 µg/m3
1:00 AM GREH PM2.5 24 Good 26 4 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 41 44 PPB
1:00 AM HLD O3 8 Good 44 47 PPB
1:00 AM I25DEN CO 8 Good 2 0.2 PPM
1:00 AM I25DEN NO2 1 Good 13 14 PPB
1:00 AM I25DEN PM10 24 Good 30 32 µg/m3
1:00 AM I25DEN PM2.5 24 Good 37 6 µg/m3
1:00 AM I25GLO NO2 1 Good 19 20 PPB
1:00 AM I25GLO PM10 24 Good 32 35 µg/m3
1:00 AM I25GLO PM2.5 24 Good 34 6 µg/m3
1:00 AM LAST NO2 1 Good 4 4 PPB
1:00 AM LAST O3 8 Good 39 42 PPB
1:00 AM LMB PM10 24 Good 30 32 µg/m3
1:00 AM LMB PM2.5 24 Good 39 7 µg/m3
1:00 AM LNGM PM10 24 Good 26 28 µg/m3
1:00 AM LNGM PM2.5 24 Good 34 6 µg/m3
1:00 AM MAN O3 8 Good 41 44 PPB
1:00 AM MFP NO2 1 Good 5 5 PPB
1:00 AM MFP O3 8 Good 41 44 PPB
1:00 AM NJH PM10 24 Good 23 25 µg/m3
1:00 AM NJH PM2.5 24 Good 31 5 µg/m3
1:00 AM NREL O3 8 Good 37 40 PPB
1:00 AM PAG PM10 24 Good 30 32 µg/m3
1:00 AM PAG PM2.5 24 Good 25 4 µg/m3
1:00 AM PAL O3 8 Good 48 52 PPB
1:00 AM PFS PM10 24 Good 27 29 µg/m3
1:00 AM PFS PM2.5 24 Good 24 4 µg/m3
1:00 AM PMS PM2.5 24 Good 29 5 µg/m3
1:00 AM PWES O3 8 Good 43 46 PPB
1:00 AM RFN NO2 1 Good 2 2 PPB
1:00 AM RFN O3 8 Good 43 46 PPB
1:00 AM RIFL PM2.5 24 Good 21 3 µg/m3
1:00 AM RIFLO3 O3 8 Good 39 42 PPB
1:00 AM SSMB PM10 24 Good 17 18 µg/m3
1:00 AM SSMB PM2.5 24 Good 21 3 µg/m3
1:00 AM TEL PM10 24 Good 19 20 µg/m3
1:00 AM TEL PM2.5 24 Good 19 3 µg/m3
1:00 AM TIM NO2 1 Good 3 3 PPB
1:00 AM TIM O3 8 Good 40 43 PPB
1:00 AM TIM PM10 24 Good 23 25 µg/m3
1:00 AM TIM PM2.5 24 Good 26 4 µg/m3
1:00 AM WBY NO2 1 Good 6 6 PPB
1:00 AM WBY NO2 1 Good 6 6 PPB
1:00 AM WBY O3 8 Good 31 34 PPB
1:00 AM WBY PM10 24 Good 28 30 µg/m3
1:00 AM WBY PM2.5 24 Good 28 5 µg/m3

* All data are reported in Mountain Standard Time (MST). During daylight savings time add one hour to the reported hour.