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AQI Calculations on 05/15/2026 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 36 39 PPB
1:00 AM ACC PM10 24 Good 18 19 µg/m3
1:00 AM ACC PM2.5 24 Good 23 4 µg/m3
1:00 AM ADB PM10 24 Moderate 53 60 µg/m3
1:00 AM ADB PM2.5 24 Good 38 6 µg/m3
1:00 AM ALA PM10 24 Good 19 20 µg/m3
1:00 AM ALA PM2.5 24 Good 20 3 µg/m3
1:00 AM ASPN O3 8 Good 43 46 PPB
1:00 AM ASPN2 PM10 24 Good 16 17 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 18 3 µg/m3
1:00 AM AURE O3 8 Moderate 71 61 PPB
1:00 AM BHWK O3 8 Moderate 74 62 PPB
1:00 AM BOU PM10 24 Good 31 33 µg/m3
1:00 AM BOU PM2.5 24 Good 27 4 µg/m3
1:00 AM BOUR O3 8 Moderate 58 57 PPB
1:00 AM CAMP NO2 1 Good 6 6 PPB
1:00 AM CAMP NO2 1 Good 6 6 PPB
1:00 AM CAMP O3 8 Moderate 51 55 PPB
1:00 AM CAMP PM10 24 Good 17 18 µg/m3
1:00 AM CAMP PM2.5 24 Good 24 4 µg/m3
1:00 AM CAMP SO2 1 Good 1 1 PPB
1:00 AM CAMP SO2 1 Good 1 1 PPB
1:00 AM CAN PM10 24 Good 18 19 µg/m3
1:00 AM CAN PM2.5 24 Good 20 3 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 8 9 PPB
1:00 AM CASA O3 8 Good 48 52 PPB
1:00 AM CASA PM10 24 Good 26 28 µg/m3
1:00 AM CASA PM2.5 24 Good 26 4 µg/m3
1:00 AM CCOL PM10 24 Good 22 24 µg/m3
1:00 AM CCOL PM2.5 24 Good 23 4 µg/m3
1:00 AM CHAT O3 8 Moderate 58 57 PPB
1:00 AM CHAT PM10 24 Good 19 21 µg/m3
1:00 AM CHAT PM2.5 24 Good 21 3 µg/m3
1:00 AM CTZ O3 8 Good 39 42 PPB
1:00 AM DELT PM10 24 Good 24 26 µg/m3
1:00 AM DELT PM2.5 24 Good 26 4 µg/m3
1:00 AM DELT PM2.5 24 Good 26 4 µg/m3
1:00 AM EVG O3 8 Good 49 53 PPB
1:00 AM FOS NO2 1 Good 4 4 PPB
1:00 AM FOS O3 8 Moderate 51 55 PPB
1:00 AM FTC CO 8 Good 0 0.0 PPM
1:00 AM FTC O3 8 Moderate 64 59 PPB
1:00 AM FTCF PM10 24 Good 27 29 µg/m3
1:00 AM FTCF PM2.5 24 Good 31 5 µg/m3
1:00 AM FTCW O3 8 Moderate 67 60 PPB
1:00 AM GJPB PM10 24 Good 18 19 µg/m3
1:00 AM GJPB PM2.5 24 Good 30 5 µg/m3
1:00 AM GREH PM10 24 Good 20 22 µg/m3
1:00 AM GREH PM2.5 24 Good 28 5 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Moderate 58 57 PPB
1:00 AM HLD O3 8 Moderate 71 61 PPB
1:00 AM I25DEN CO 8 Good 1 0.1 PPM
1:00 AM I25DEN NO2 1 Good 21 22 PPB
1:00 AM I25DEN PM10 24 Good 30 32 µg/m3
1:00 AM I25DEN PM2.5 24 Good 28 5 µg/m3
1:00 AM I25GLO NO2 1 Good 27 29 PPB
1:00 AM I25GLO PM10 24 Good 36 39 µg/m3
1:00 AM I25GLO PM2.5 24 Good 32 5 µg/m3
1:00 AM LAST NO2 1 Good 5 5 PPB
1:00 AM LAST O3 8 Good 50 54 PPB
1:00 AM LMB PM10 24 Good 35 38 µg/m3
1:00 AM LMB PM2.5 24 Good 33 6 µg/m3
1:00 AM LNGM PM10 24 Good 28 30 µg/m3
1:00 AM LNGM PM2.5 24 Good 28 5 µg/m3
1:00 AM MAN O3 8 Good 48 52 PPB
1:00 AM MFP NO2 1 Good 2 2 PPB
1:00 AM MFP O3 8 Moderate 71 61 PPB
1:00 AM NJH PM10 24 Good 25 27 µg/m3
1:00 AM NJH PM2.5 24 Good 26 4 µg/m3
1:00 AM NREL O3 8 Moderate 61 58 PPB
1:00 AM PAG PM10 24 Good 16 17 µg/m3
1:00 AM PAG PM2.5 24 Good 18 3 µg/m3
1:00 AM PAL O3 8 Moderate 58 57 PPB
1:00 AM PFS PM10 24 Good 19 21 µg/m3
1:00 AM PFS PM2.5 24 Good 23 4 µg/m3
1:00 AM PMS PM2.5 24 Good 29 5 µg/m3
1:00 AM PWES O3 8 Good 45 49 PPB
1:00 AM RFN NO2 1 Good 1 1 PPB
1:00 AM RFN O3 8 Moderate 71 61 PPB
1:00 AM RIFL PM2.5 24 Good 23 4 µg/m3
1:00 AM RIFLO3 O3 8 Good 40 43 PPB
1:00 AM SSMB PM10 24 Good 43 46 µg/m3
1:00 AM SSMB PM2.5 24 Good 32 5 µg/m3
1:00 AM TEL PM10 24 Good 14 15 µg/m3
1:00 AM TEL PM2.5 24 Good 17 3 µg/m3
1:00 AM TIM NO2 1 Good 6 6 PPB
1:00 AM TIM O3 8 Good 50 54 PPB
1:00 AM TIM PM10 24 Good 22 24 µg/m3
1:00 AM TIM PM2.5 24 Good 24 4 µg/m3
1:00 AM WBY NO2 1 Good 5 5 PPB
1:00 AM WBY NO2 1 Good 5 5 PPB
1:00 AM WBY O3 8 Moderate 54 56 PPB
1:00 AM WBY PM10 24 Good 43 46 µg/m3
1:00 AM WBY PM2.5 24 Good 31 5 µg/m3

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