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AQI Calculations on 09/12/2026 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 26 28 PPB
1:00 AM ACC PM10 24 Good 1 1 µg/m3
1:00 AM ACC PM2.5 24 Good 6 1 µg/m3
1:00 AM ADB PM10 24 Moderate 56 66 µg/m3
1:00 AM ADB PM2.5 24 Good 33 6 µg/m3
1:00 AM ALA PM10 24 Good 24 26 µg/m3
1:00 AM ALA PM2.5 24 Good 31 5 µg/m3
1:00 AM ASPN2 PM10 24 Good 17 18 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 16 2 µg/m3
1:00 AM BHWK O3 8 Good 32 35 PPB
1:00 AM BOU PM10 24 Good 19 21 µg/m3
1:00 AM BOU PM2.5 24 Good 14 2 µg/m3
1:00 AM BOUR O3 8 Good 25 27 PPB
1:00 AM CAMP NO2 1 Good 30 32 PPB
1:00 AM CAMP NO2 1 Good 30 32 PPB
1:00 AM CAMP O3 8 Good 19 21 PPB
1:00 AM CAMP PM10 24 Good 23 25 µg/m3
1:00 AM CAMP PM2.5 24 Good 22 4 µg/m3
1:00 AM CAN PM10 24 Good 19 20 µg/m3
1:00 AM CAN PM2.5 24 Good 14 2 µg/m3
1:00 AM CASA CO 8 Good 3 0.3 PPM
1:00 AM CASA NO2 1 Good 11 12 PPB
1:00 AM CASA O3 8 Good 20 22 PPB
1:00 AM CASA PM10 24 Good 19 20 µg/m3
1:00 AM CASA PM2.5 24 Good 21 3 µg/m3
1:00 AM CCOL PM10 24 Moderate 63 79 µg/m3
1:00 AM CCOL PM2.5 24 Good 45 8 µg/m3
1:00 AM CHAT NO2 1 Good 2 2 PPB
1:00 AM CHAT O3 8 Good 34 37 PPB
1:00 AM CHAT PM10 24 Good 14 15 µg/m3
1:00 AM CHAT PM2.5 24 Good 16 2 µg/m3
1:00 AM CTZ O3 8 Good 28 30 PPB
1:00 AM DELT PM10 24 Good 29 31 µg/m3
1:00 AM DELT PM2.5 24 Good 19 3 µg/m3
1:00 AM DELT PM2.5 24 Good 19 3 µg/m3
1:00 AM EVG O3 8 Good 35 38 PPB
1:00 AM FOS NO2 1 Good 1 1 PPB
1:00 AM FOS O3 8 Good 29 31 PPB
1:00 AM FTC CO 8 Good 2 0.2 PPM
1:00 AM FTCF PM10 24 Good 22 24 µg/m3
1:00 AM FTCF PM2.5 24 Good 23 4 µg/m3
1:00 AM FTCW NO2 1 Good 1 1 PPB
1:00 AM FTCW O3 8 Good 32 35 PPB
1:00 AM GREH PM10 24 Good 24 26 µg/m3
1:00 AM GREH PM2.5 24 Good 24 4 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 29 31 PPB
1:00 AM HLD O3 8 Good 33 36 PPB
1:00 AM I25DEN CO 8 Good 7 0.6 PPM
1:00 AM I25DEN NO2 1 Good 27 29 PPB
1:00 AM I25DEN PM10 24 Good 21 23 µg/m3
1:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
1:00 AM I25GLO NO2 1 Good 28 30 PPB
1:00 AM I25GLO PM10 24 Good 25 27 µg/m3
1:00 AM I25GLO PM2.5 24 Good 26 4 µg/m3
1:00 AM LAST NO2 1 Good 3 3 PPB
1:00 AM LAST O3 8 Good 29 31 PPB
1:00 AM LMB PM10 24 Good 18 19 µg/m3
1:00 AM LMB PM2.5 24 Good 29 5 µg/m3
1:00 AM LNGM PM10 24 Good 26 28 µg/m3
1:00 AM LNGM PM2.5 24 Good 22 3 µg/m3
1:00 AM MAN O3 8 Good 39 42 PPB
1:00 AM MFP NO2 1 Good 3 3 PPB
1:00 AM MFP O3 8 Good 32 35 PPB
1:00 AM NJH PM10 24 Good 16 17 µg/m3
1:00 AM NJH PM2.5 24 Good 21 3 µg/m3
1:00 AM NREL O3 8 Good 40 43 PPB
1:00 AM PAG PM10 24 Good 29 31 µg/m3
1:00 AM PAG PM2.5 24 Good 21 3 µg/m3
1:00 AM PAL O3 8 Good 33 36 PPB
1:00 AM PFS PM10 24 Good 16 17 µg/m3
1:00 AM PFS PM2.5 24 Good 17 3 µg/m3
1:00 AM PMS PM2.5 24 Good 29 5 µg/m3
1:00 AM PWES O3 8 Good 39 42 PPB
1:00 AM RFN NO2 1 Good 1 1 PPB
1:00 AM RFN O3 8 Good 34 37 PPB
1:00 AM RIFLO3 O3 8 Good 19 21 PPB
1:00 AM SSMB PM10 24 Good 11 12 µg/m3
1:00 AM SSMB PM2.5 24 Good 13 2 µg/m3
1:00 AM TEL PM10 24 Good 13 14 µg/m3
1:00 AM TEL PM2.5 24 Good 13 2 µg/m3
1:00 AM TIM O3 8 Good 28 30 PPB
1:00 AM TIM PM10 24 Good 23 25 µg/m3
1:00 AM TIM PM2.5 24 Good 20 3 µg/m3
1:00 AM WBY NO2 1 Good 15 16 PPB
1:00 AM WBY NO2 1 Good 15 16 PPB
1:00 AM WBY O3 8 Good 15 16 PPB
1:00 AM WBY PM10 24 Good 31 34 µg/m3
1:00 AM WBY PM2.5 24 Good 25 4 µg/m3

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