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AQI Calculations on 04/12/2026 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 42 45 PPB
1:00 AM ACC PM10 24 Good 10 11 µg/m3
1:00 AM ACC PM2.5 24 Good 17 3 µg/m3
1:00 AM ADB PM10 24 Good 31 33 µg/m3
1:00 AM ADB PM2.5 24 Good 33 6 µg/m3
1:00 AM ALA PM10 24 Good 17 18 µg/m3
1:00 AM ALA PM2.5 24 Good 14 2 µg/m3
1:00 AM ASPN O3 8 Good 40 43 PPB
1:00 AM ASPN2 PM10 24 Good 8 9 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 10 1 µg/m3
1:00 AM AURE O3 8 Good 46 50 PPB
1:00 AM BHWK O3 8 Good 49 53 PPB
1:00 AM BOU PM10 24 Good 12 13 µg/m3
1:00 AM BOU PM2.5 24 Good 14 2 µg/m3
1:00 AM BOUR O3 8 Good 44 48 PPB
1:00 AM CAMP NO2 1 Good 20 21 PPB
1:00 AM CAMP NO2 1 Good 20 21 PPB
1:00 AM CAMP O3 8 Good 31 33 PPB
1:00 AM CAMP PM10 24 Good 11 12 µg/m3
1:00 AM CAMP PM2.5 24 Good 27 4 µg/m3
1:00 AM CAN PM10 24 Good 12 13 µg/m3
1:00 AM CAN PM2.5 24 Good 19 3 µg/m3
1:00 AM CASA CO 8 Good 2 0.2 PPM
1:00 AM CASA NO2 1 Good 10 11 PPB
1:00 AM CASA O3 8 Good 32 35 PPB
1:00 AM CASA PM10 24 Good 19 20 µg/m3
1:00 AM CASA PM2.5 24 Good 27 4 µg/m3
1:00 AM CCOL PM10 24 Good 25 27 µg/m3
1:00 AM CCOL PM2.5 24 Good 39 7 µg/m3
1:00 AM CHAT O3 8 Good 48 52 PPB
1:00 AM CHAT PM10 24 Good 10 11 µg/m3
1:00 AM CHAT PM2.5 24 Good 12 2 µg/m3
1:00 AM CTZ O3 8 Good 35 38 PPB
1:00 AM DELT PM10 24 Good 17 18 µg/m3
1:00 AM DELT PM2.5 24 Good 16 2 µg/m3
1:00 AM DELT PM2.5 24 Good 16 2 µg/m3
1:00 AM EVG O3 8 Good 44 47 PPB
1:00 AM FOS NO2 1 Good 1 1 PPB
1:00 AM FOS O3 8 Good 47 51 PPB
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM FTC O3 8 Good 45 49 PPB
1:00 AM FTCF PM10 24 Good 13 14 µg/m3
1:00 AM FTCF PM2.5 24 Moderate 59 13 µg/m3
1:00 AM FTCW O3 8 Good 46 50 PPB
1:00 AM GJPB PM10 24 Good 5 5 µg/m3
1:00 AM GJPB PM2.5 24 Good 13 2 µg/m3
1:00 AM GREH PM10 24 Good 15 16 µg/m3
1:00 AM GREH PM2.5 24 Good 38 6 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 46 50 PPB
1:00 AM HLD O3 8 Good 48 52 PPB
1:00 AM I25DEN CO 8 Good 7 0.6 PPM
1:00 AM I25DEN NO2 1 Good 22 23 PPB
1:00 AM I25DEN PM10 24 Good 21 23 µg/m3
1:00 AM I25DEN PM2.5 24 Good 31 5 µg/m3
1:00 AM I25GLO NO2 1 Good 24 25 PPB
1:00 AM I25GLO PM10 24 Good 27 29 µg/m3
1:00 AM I25GLO PM2.5 24 Good 32 5 µg/m3
1:00 AM LAST NO2 1 Good 2 2 PPB
1:00 AM LAST O3 8 Good 45 49 PPB
1:00 AM LMB PM10 24 Good 23 25 µg/m3
1:00 AM LMB PM2.5 24 Good 32 5 µg/m3
1:00 AM LNGM PM10 24 Good 21 23 µg/m3
1:00 AM LNGM PM2.5 24 Good 29 5 µg/m3
1:00 AM MAN O3 8 Good 46 50 PPB
1:00 AM MFP O3 8 Good 50 54 PPB
1:00 AM NJH PM10 24 Good 15 16 µg/m3
1:00 AM NJH PM2.5 24 Good 24 4 µg/m3
1:00 AM NREL O3 8 Good 47 51 PPB
1:00 AM PAG PM10 24 Good 7 8 µg/m3
1:00 AM PAG PM2.5 24 Good 14 2 µg/m3
1:00 AM PAL O3 8 Good 35 38 PPB
1:00 AM PFS PM10 24 Good 27 29 µg/m3
1:00 AM PFS PM2.5 24 Good 41 7 µg/m3
1:00 AM PMS PM2.5 24 Good 33 5 µg/m3
1:00 AM PWES O3 8 Good 41 44 PPB
1:00 AM RFN O3 8 Good 49 53 PPB
1:00 AM RIFLO3 O3 8 Good 20 22 PPB
1:00 AM SSMB PM10 24 Good 8 9 µg/m3
1:00 AM SSMB PM2.5 24 Good 13 2 µg/m3
1:00 AM TEL PM10 24 Good 6 7 µg/m3
1:00 AM TEL PM2.5 24 Good 10 1 µg/m3
1:00 AM TIM NO2 1 Good 4 4 PPB
1:00 AM TIM O3 8 Good 46 50 PPB
1:00 AM TIM PM10 24 Good 17 18 µg/m3
1:00 AM TIM PM2.5 24 Good 29 5 µg/m3
1:00 AM WBY NO2 1 Good 13 14 PPB
1:00 AM WBY NO2 1 Good 13 14 PPB
1:00 AM WBY O3 8 Good 34 37 PPB
1:00 AM WBY PM10 24 Good 25 27 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.