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AQI Calculations on 01/26/2026 1:00AM - 2:00AM

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.
2:00 AM ACAD O3 8 Good 24 26 PPB
2:00 AM ACC PM10 24 Good 15 16 µg/m3
2:00 AM ACC PM2.5 24 Moderate 54 10 µg/m3
2:00 AM ADB PM10 24 Good 19 21 µg/m3
2:00 AM ADB PM2.5 24 Moderate 51 9 µg/m3
2:00 AM ALA PM10 24 Good 7 8 µg/m3
2:00 AM ALA PM2.5 24 Good 15 2 µg/m3
2:00 AM ASPN O3 8 Good 36 39 PPB
2:00 AM ASPN2 PM10 24 Good 6 7 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
2:00 AM AURE O3 8 Good 34 37 PPB
2:00 AM BHWK O3 8 Good 43 46 PPB
2:00 AM BOU PM10 24 Good 14 15 µg/m3
2:00 AM BOU PM2.5 24 Moderate 51 9 µg/m3
2:00 AM BOUR O3 8 Good 25 27 PPB
2:00 AM CAMP NO2 1 Good 17 18 PPB
2:00 AM CAMP NO2 1 Good 17 18 PPB
2:00 AM CAMP O3 8 Good 23 25 PPB
2:00 AM CAMP PM10 24 Good 45 49 µg/m3
2:00 AM CAMP PM2.5 24 Moderate 52 9 µg/m3
2:00 AM CAN PM10 24 Good 14 15 µg/m3
2:00 AM CAN PM2.5 24 Good 49 8 µg/m3
2:00 AM CASA CO 8 Good 1 0.1 PPM
2:00 AM CASA NO2 1 Good 20 21 PPB
2:00 AM CASA O3 8 Good 21 23 PPB
2:00 AM CASA PM10 24 Good 14 15 µg/m3
2:00 AM CASA PM2.5 24 Good 41 7 µg/m3
2:00 AM CCOL PM10 24 Good 15 16 µg/m3
2:00 AM CCOL PM2.5 24 Moderate 51 9 µg/m3
2:00 AM CHAT O3 8 Good 30 32 PPB
2:00 AM CHAT PM10 24 Good 19 20 µg/m3
2:00 AM CHAT PM2.5 24 Moderate 51 9 µg/m3
2:00 AM CTZ O3 8 Good 27 29 PPB
2:00 AM DELT PM10 24 Good 10 11 µg/m3
2:00 AM DELT PM2.5 24 Good 28 5 µg/m3
2:00 AM DELT PM2.5 24 Good 28 5 µg/m3
2:00 AM EVG O3 8 Good 37 40 PPB
2:00 AM FOS NO2 1 Good 15 16 PPB
2:00 AM FOS O3 8 Good 23 25 PPB
2:00 AM FTC CO 8 Good 2 0.2 PPM
2:00 AM FTC O3 8 Good 23 25 PPB
2:00 AM FTCF PM10 24 Good 15 16 µg/m3
2:00 AM FTCF PM2.5 24 Moderate 60 13 µg/m3
2:00 AM FTCW O3 8 Good 31 33 PPB
2:00 AM GJPB PM10 24 Good 6 7 µg/m3
2:00 AM GJPB PM2.5 24 Good 24 4 µg/m3
2:00 AM GREH PM10 24 Good 13 14 µg/m3
2:00 AM GREH PM2.5 24 Moderate 57 12 µg/m3
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM GRET O3 8 Good 23 25 PPB
2:00 AM HLD O3 8 Good 30 32 PPB
2:00 AM I25DEN CO 8 Good 2 0.2 PPM
2:00 AM I25DEN NO2 1 Good 31 33 PPB
2:00 AM I25DEN PM10 24 Good 19 20 µg/m3
2:00 AM I25DEN PM2.5 24 Moderate 54 10 µg/m3
2:00 AM I25GLO NO2 1 Good 25 27 PPB
2:00 AM I25GLO PM10 24 Good 37 40 µg/m3
2:00 AM I25GLO PM2.5 24 Moderate 56 11 µg/m3
2:00 AM LAST NO2 1 Good 21 22 PPB
2:00 AM LAST O3 8 Good 29 31 PPB
2:00 AM LMB PM10 24 Good 6 6 µg/m3
2:00 AM LMB PM2.5 24 Good 19 3 µg/m3
2:00 AM LNGM PM10 24 Good 17 18 µg/m3
2:00 AM LNGM PM2.5 24 Moderate 55 11 µg/m3
2:00 AM MAN O3 8 Good 29 31 PPB
2:00 AM MFP NO2 1 Good 4 4 PPB
2:00 AM MFP O3 8 Good 33 36 PPB
2:00 AM NJH PM10 24 Good 14 15 µg/m3
2:00 AM NJH PM2.5 24 Good 42 7 µg/m3
2:00 AM NREL O3 8 Good 35 38 PPB
2:00 AM PAG PM10 24 Good 6 7 µg/m3
2:00 AM PAG PM2.5 24 Good 13 2 µg/m3
2:00 AM PAL O3 8 Good 38 41 PPB
2:00 AM PFS PM10 24 Good 14 15 µg/m3
2:00 AM PFS PM2.5 24 Good 34 6 µg/m3
2:00 AM PMS PM2.5 24 Moderate 57 12 µg/m3
2:00 AM PWES O3 8 Good 33 36 PPB
2:00 AM RFN NO2 1 Good 1 1 PPB
2:00 AM RFN O3 8 Good 35 38 PPB
2:00 AM RIFL PM2.5 24 Good 22 4 µg/m3
2:00 AM RIFLO3 O3 8 Good 12 13 PPB
2:00 AM SSMB PM10 24 Good 7 8 µg/m3
2:00 AM SSMB PM2.5 24 Good 26 4 µg/m3
2:00 AM TEL PM10 24 Good 6 6 µg/m3
2:00 AM TEL PM2.5 24 Good 12 2 µg/m3
2:00 AM TIM NO2 1 Good 23 24 PPB
2:00 AM TIM O3 8 Good 19 21 PPB
2:00 AM TIM PM10 24 Good 13 14 µg/m3
2:00 AM TIM PM2.5 24 Moderate 51 9 µg/m3
2:00 AM WBY NO2 1 Good 36 38 PPB
2:00 AM WBY NO2 1 Good 36 38 PPB
2:00 AM WBY O3 8 Good 20 22 PPB
2:00 AM WBY PM10 24 Good 15 16 µg/m3
2:00 AM WBY PM2.5 24 Good 44 8 µg/m3
1:00 AM ACAD O3 8 Good 26 28 PPB
1:00 AM ACC PM10 24 Good 15 16 µg/m3
1:00 AM ACC PM2.5 24 Moderate 55 11 µg/m3
1:00 AM ADB PM10 24 Good 19 21 µg/m3
1:00 AM ADB PM2.5 24 Moderate 52 9 µg/m3
1:00 AM ALA PM10 24 Good 7 8 µg/m3
1:00 AM ALA PM2.5 24 Good 16 2 µg/m3
1:00 AM ASPN O3 8 Good 36 39 PPB
1:00 AM ASPN2 PM10 24 Good 6 7 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
1:00 AM AURE O3 8 Good 35 38 PPB
1:00 AM BHWK O3 8 Good 41 44 PPB
1:00 AM BOU PM10 24 Good 15 16 µg/m3
1:00 AM BOU PM2.5 24 Moderate 52 9 µg/m3
1:00 AM BOUR O3 8 Good 27 29 PPB
1:00 AM CAMP NO2 1 Good 18 19 PPB
1:00 AM CAMP NO2 1 Good 18 19 PPB
1:00 AM CAMP O3 8 Good 25 27 PPB
1:00 AM CAMP PM10 24 Good 46 50 µg/m3
1:00 AM CAMP PM2.5 24 Moderate 53 10 µg/m3
1:00 AM CAN PM10 24 Good 14 15 µg/m3
1:00 AM CAN PM2.5 24 Good 50 9 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 19 20 PPB
1:00 AM CASA O3 8 Good 23 25 PPB
1:00 AM CASA PM10 24 Good 14 15 µg/m3
1:00 AM CASA PM2.5 24 Good 43 7 µg/m3
1:00 AM CCOL PM10 24 Good 15 16 µg/m3
1:00 AM CCOL PM2.5 24 Moderate 52 9 µg/m3
1:00 AM CHAT O3 8 Good 31 33 PPB
1:00 AM CHAT PM10 24 Good 19 21 µg/m3
1:00 AM CHAT PM2.5 24 Moderate 52 9 µg/m3
1:00 AM CTZ O3 8 Good 29 31 PPB
1:00 AM DELT PM10 24 Good 10 11 µg/m3
1:00 AM DELT PM2.5 24 Good 29 5 µg/m3
1:00 AM DELT PM2.5 24 Good 29 5 µg/m3
1:00 AM EVG O3 8 Good 36 39 PPB
1:00 AM FOS NO2 1 Good 8 8 PPB
1:00 AM FOS O3 8 Good 25 27 PPB
1:00 AM FTC CO 8 Good 2 0.2 PPM
1:00 AM FTC O3 8 Good 24 26 PPB
1:00 AM FTCF PM10 24 Good 15 16 µg/m3
1:00 AM FTCF PM2.5 24 Moderate 60 14 µg/m3
1:00 AM FTCW O3 8 Good 31 34 PPB
1:00 AM GJPB PM10 24 Good 6 7 µg/m3
1:00 AM GJPB PM2.5 24 Good 24 4 µg/m3
1:00 AM GREH PM10 24 Good 14 15 µg/m3
1:00 AM GREH PM2.5 24 Moderate 57 12 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 26 28 PPB
1:00 AM HLD O3 8 Good 30 32 PPB
1:00 AM I25DEN CO 8 Good 2 0.2 PPM
1:00 AM I25DEN NO2 1 Good 30 32 PPB
1:00 AM I25DEN PM10 24 Good 19 21 µg/m3
1:00 AM I25DEN PM2.5 24 Moderate 55 11 µg/m3
1:00 AM I25GLO NO2 1 Good 26 28 PPB
1:00 AM I25GLO PM10 24 Good 38 41 µg/m3
1:00 AM I25GLO PM2.5 24 Moderate 57 12 µg/m3
1:00 AM LAST NO2 1 Good 14 15 PPB
1:00 AM LAST O3 8 Good 31 34 PPB
1:00 AM LMB PM10 24 Good 6 6 µg/m3
1:00 AM LMB PM2.5 24 Good 19 3 µg/m3
1:00 AM LNGM PM10 24 Good 17 18 µg/m3
1:00 AM LNGM PM2.5 24 Moderate 56 11 µg/m3
1:00 AM MAN O3 8 Good 29 31 PPB
1:00 AM MFP NO2 1 Good 1 1 PPB
1:00 AM MFP O3 8 Good 33 36 PPB
1:00 AM NJH PM10 24 Good 14 15 µg/m3
1:00 AM NJH PM2.5 24 Good 44 7 µg/m3
1:00 AM NREL O3 8 Good 33 36 PPB
1:00 AM PAG PM10 24 Good 6 7 µg/m3
1:00 AM PAG PM2.5 24 Good 13 2 µg/m3
1:00 AM PAL O3 8 Good 38 41 PPB
1:00 AM PFS PM10 24 Good 14 15 µg/m3
1:00 AM PFS PM2.5 24 Good 35 6 µg/m3
1:00 AM PMS PM2.5 24 Moderate 57 12 µg/m3
1:00 AM PWES O3 8 Good 35 38 PPB
1:00 AM RFN NO2 1 Good 4 4 PPB
1:00 AM RFN O3 8 Good 34 37 PPB
1:00 AM RIFL PM2.5 24 Good 22 3 µg/m3
1:00 AM RIFLO3 O3 8 Good 15 16 PPB
1:00 AM SSMB PM10 24 Good 7 8 µg/m3
1:00 AM SSMB PM2.5 24 Good 26 4 µg/m3
1:00 AM TEL PM10 24 Good 6 6 µg/m3
1:00 AM TEL PM2.5 24 Good 12 2 µg/m3
1:00 AM TIM NO2 1 Good 14 15 PPB
1:00 AM TIM O3 8 Good 23 25 PPB
1:00 AM TIM PM10 24 Good 14 15 µg/m3
1:00 AM TIM PM2.5 24 Moderate 52 9 µg/m3
1:00 AM WBY NO2 1 Good 30 32 PPB
1:00 AM WBY NO2 1 Good 30 32 PPB
1:00 AM WBY O3 8 Good 25 27 PPB
1:00 AM WBY PM10 24 Good 16 17 µg/m3
1:00 AM WBY PM2.5 24 Good 46 8 µg/m3

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