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AQI Calculations on 12/06/2025 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 16 17 PPB
2:00 AM ACC PM10 24 Good 17 18 µg/m3
2:00 AM ACC PM2.5 24 Good 37 6 µg/m3
2:00 AM ADB PM10 24 Good 27 29 µg/m3
2:00 AM ADB PM2.5 24 Good 48 8 µg/m3
2:00 AM ALA PM10 24 Good 14 15 µg/m3
2:00 AM ALA PM2.5 24 Good 49 8 µg/m3
2:00 AM ASPN O3 8 Good 21 23 PPB
2:00 AM ASPN2 PM10 24 Good 5 5 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
2:00 AM AURE O3 8 Good 37 40 PPB
2:00 AM BHWK O3 8 Good 42 45 PPB
2:00 AM BOU PM10 24 Good 15 16 µg/m3
2:00 AM BOU PM2.5 24 Good 47 8 µg/m3
2:00 AM BOUR O3 8 Good 19 21 PPB
2:00 AM CAMP NO2 1 Good 26 28 PPB
2:00 AM CAMP NO2 1 Good 26 28 PPB
2:00 AM CAMP O3 8 Good 10 11 PPB
2:00 AM CAMP PM10 24 Good 21 23 µg/m3
2:00 AM CAMP PM2.5 24 Good 47 8 µg/m3
2:00 AM CAN PM10 24 Good 10 11 µg/m3
2:00 AM CAN PM2.5 24 Good 22 4 µg/m3
2:00 AM CASA CO 8 Good 6 0.5 PPM
2:00 AM CASA NO2 1 Good 25 27 PPB
2:00 AM CASA O3 8 Good 6 7 PPB
2:00 AM CASA PM10 24 Good 21 23 µg/m3
2:00 AM CASA PM2.5 24 Good 46 8 µg/m3
2:00 AM CCOL PM10 24 Good 10 11 µg/m3
2:00 AM CCOL PM2.5 24 Good 24 4 µg/m3
2:00 AM CHAT O3 8 Good 23 25 PPB
2:00 AM CHAT PM10 24 Good 13 14 µg/m3
2:00 AM CHAT PM2.5 24 Good 32 5 µg/m3
2:00 AM CTZ O3 8 Good 12 13 PPB
2:00 AM DELT PM10 24 Good 20 22 µg/m3
2:00 AM DELT PM2.5 24 Good 47 8 µg/m3
2:00 AM DELT PM2.5 24 Good 47 8 µg/m3
2:00 AM EVG O3 8 Good 36 39 PPB
2:00 AM FOS NO2 1 Good 27 29 PPB
2:00 AM FOS O3 8 Good 8 9 PPB
2:00 AM FTC CO 8 Good 3 0.3 PPM
2:00 AM FTC O3 8 Good 11 12 PPB
2:00 AM FTCF PM10 24 Good 18 19 µg/m3
2:00 AM FTCF PM2.5 24 Moderate 61 14 µg/m3
2:00 AM FTCW O3 8 Good 24 26 PPB
2:00 AM GJPB PM10 24 Good 9 10 µg/m3
2:00 AM GJPB PM2.5 24 Good 34 6 µg/m3
2:00 AM GREH PM10 24 Good 21 23 µg/m3
2:00 AM GREH PM2.5 24 Moderate 65 16 µg/m3
2:00 AM GRET CO 8 Good 5 0.4 PPM
2:00 AM GRET O3 8 Good 2 2 PPB
2:00 AM HLD O3 8 Good 30 32 PPB
2:00 AM I25DEN CO 8 Good 8 0.7 PPM
2:00 AM I25DEN NO2 1 Good 34 36 PPB
2:00 AM I25DEN PM10 24 Good 22 24 µg/m3
2:00 AM I25DEN PM2.5 24 Moderate 53 10 µg/m3
2:00 AM I25GLO NO2 1 Good 37 39 PPB
2:00 AM LAST NO2 1 Good 25 26 PPB
2:00 AM LAST O3 8 Good 11 12 PPB
2:00 AM LMB PM10 24 Good 8 9 µg/m3
2:00 AM LMB PM2.5 24 Good 25 4 µg/m3
2:00 AM LNGM PM10 24 Good 35 38 µg/m3
2:00 AM LNGM PM2.5 24 Moderate 72 20 µg/m3
2:00 AM MAN O3 8 Good 29 31 PPB
2:00 AM MFP NO2 1 Good 9 10 PPB
2:00 AM MFP O3 8 Good 25 27 PPB
2:00 AM NJH PM10 24 Good 27 29 µg/m3
2:00 AM NJH PM2.5 24 Good 43 7 µg/m3
2:00 AM NREL O3 8 Good 31 34 PPB
2:00 AM PAG PM10 24 Good 11 12 µg/m3
2:00 AM PAG PM2.5 24 Good 21 3 µg/m3
2:00 AM PAL O3 8 Good 19 20 PPB
2:00 AM PFS PM10 24 Good 12 13 µg/m3
2:00 AM PFS PM2.5 24 Good 31 5 µg/m3
2:00 AM PMS PM2.5 24 Moderate 88 29 µg/m3
2:00 AM PWES O3 8 Good 29 31 PPB
2:00 AM RFN O3 8 Good 29 31 PPB
2:00 AM RIFL PM2.5 24 Good 17 3 µg/m3
2:00 AM RIFLO3 O3 8 Good 6 7 PPB
2:00 AM SSMB PM10 24 Good 5 5 µg/m3
2:00 AM SSMB PM2.5 24 Good 18 3 µg/m3
2:00 AM TEL PM10 24 Good 2 2 µg/m3
2:00 AM TEL PM2.5 24 Good 8 1 µg/m3
2:00 AM TIM O3 8 Good 0 0 PPB
2:00 AM TIM PM10 24 Good 24 26 µg/m3
2:00 AM TIM PM2.5 24 Moderate 62 15 µg/m3
2:00 AM WBY NO2 1 Good 29 31 PPB
2:00 AM WBY NO2 1 Good 29 31 PPB
2:00 AM WBY O3 8 Good 3 3 PPB
2:00 AM WBY PM10 24 Good 26 28 µg/m3
2:00 AM WBY PM2.5 24 Good 47 8 µg/m3
1:00 AM ACAD O3 8 Good 15 16 PPB
1:00 AM ACC PM10 24 Good 17 18 µg/m3
1:00 AM ACC PM2.5 24 Good 37 6 µg/m3
1:00 AM ADB PM10 24 Good 27 29 µg/m3
1:00 AM ADB PM2.5 24 Good 48 8 µg/m3
1:00 AM ALA PM10 24 Good 14 15 µg/m3
1:00 AM ALA PM2.5 24 Good 49 8 µg/m3
1:00 AM ASPN O3 8 Good 22 24 PPB
1:00 AM ASPN2 PM10 24 Good 5 5 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
1:00 AM AURE O3 8 Good 36 39 PPB
1:00 AM BHWK O3 8 Good 42 45 PPB
1:00 AM BOU PM10 24 Good 16 17 µg/m3
1:00 AM BOU PM2.5 24 Good 48 8 µg/m3
1:00 AM BOUR O3 8 Good 18 19 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 8 9 PPB
1:00 AM CAMP PM10 24 Good 21 23 µg/m3
1:00 AM CAMP PM2.5 24 Good 47 8 µg/m3
1:00 AM CAN PM10 24 Good 10 11 µg/m3
1:00 AM CAN PM2.5 24 Good 22 4 µg/m3
1:00 AM CASA CO 8 Good 7 0.6 PPM
1:00 AM CASA NO2 1 Good 27 29 PPB
1:00 AM CASA O3 8 Good 6 6 PPB
1:00 AM CASA PM10 24 Good 21 23 µg/m3
1:00 AM CASA PM2.5 24 Good 46 8 µg/m3
1:00 AM CCOL PM10 24 Good 10 11 µg/m3
1:00 AM CCOL PM2.5 24 Good 23 4 µg/m3
1:00 AM CHAT O3 8 Good 19 20 PPB
1:00 AM CHAT PM10 24 Good 13 14 µg/m3
1:00 AM CHAT PM2.5 24 Good 32 5 µg/m3
1:00 AM CTZ O3 8 Good 14 15 PPB
1:00 AM DELT PM10 24 Good 19 21 µg/m3
1:00 AM DELT PM2.5 24 Good 44 8 µg/m3
1:00 AM DELT PM2.5 24 Good 44 8 µg/m3
1:00 AM EVG O3 8 Good 34 37 PPB
1:00 AM FOS NO2 1 Good 29 31 PPB
1:00 AM FOS O3 8 Good 10 11 PPB
1:00 AM FTC CO 8 Good 3 0.3 PPM
1:00 AM FTC O3 8 Good 11 12 PPB
1:00 AM FTCF PM10 24 Good 18 19 µg/m3
1:00 AM FTCF PM2.5 24 Moderate 61 14 µg/m3
1:00 AM FTCW O3 8 Good 25 27 PPB
1:00 AM GJPB PM10 24 Good 9 10 µg/m3
1:00 AM GJPB PM2.5 24 Good 33 6 µg/m3
1:00 AM GREH PM10 24 Good 21 23 µg/m3
1:00 AM GREH PM2.5 24 Moderate 65 16 µg/m3
1:00 AM GRET CO 8 Good 3 0.3 PPM
1:00 AM GRET O3 8 Good 2 2 PPB
1:00 AM HLD O3 8 Good 24 26 PPB
1:00 AM I25DEN CO 8 Good 9 0.8 PPM
1:00 AM I25DEN NO2 1 Good 25 26 PPB
1:00 AM I25DEN PM10 24 Good 22 24 µg/m3
1:00 AM I25DEN PM2.5 24 Moderate 53 10 µg/m3
1:00 AM I25GLO NO2 1 Good 41 43 PPB
1:00 AM LAST NO2 1 Good 30 32 PPB
1:00 AM LAST O3 8 Good 11 12 PPB
1:00 AM LMB PM10 24 Good 8 9 µg/m3
1:00 AM LMB PM2.5 24 Good 26 4 µg/m3
1:00 AM LNGM PM10 24 Good 35 38 µg/m3
1:00 AM LNGM PM2.5 24 Moderate 72 20 µg/m3
1:00 AM MAN O3 8 Good 31 33 PPB
1:00 AM MFP NO2 1 Good 12 13 PPB
1:00 AM MFP O3 8 Good 25 27 PPB
1:00 AM NJH PM10 24 Good 27 29 µg/m3
1:00 AM NJH PM2.5 24 Good 43 7 µg/m3
1:00 AM NREL O3 8 Good 31 33 PPB
1:00 AM PAG PM10 24 Good 11 12 µg/m3
1:00 AM PAG PM2.5 24 Good 22 4 µg/m3
1:00 AM PAL O3 8 Good 19 21 PPB
1:00 AM PFS PM10 24 Good 12 13 µg/m3
1:00 AM PFS PM2.5 24 Good 31 5 µg/m3
1:00 AM PMS PM2.5 24 Moderate 88 28 µg/m3
1:00 AM PWES O3 8 Good 29 31 PPB
1:00 AM RFN NO2 1 Good 7 7 PPB
1:00 AM RFN O3 8 Good 29 31 PPB
1:00 AM RIFL PM2.5 24 Good 17 3 µg/m3
1:00 AM RIFLO3 O3 8 Good 6 7 PPB
1:00 AM SSMB PM10 24 Good 5 5 µg/m3
1:00 AM SSMB PM2.5 24 Good 18 3 µg/m3
1:00 AM TEL PM10 24 Good 2 2 µg/m3
1:00 AM TEL PM2.5 24 Good 8 1 µg/m3
1:00 AM TIM NO2 1 Good 25 27 PPB
1:00 AM TIM O3 8 Good 0 0 PPB
1:00 AM TIM PM10 24 Good 24 26 µg/m3
1:00 AM TIM PM2.5 24 Moderate 62 14 µg/m3
1:00 AM WBY NO2 1 Good 35 37 PPB
1:00 AM WBY NO2 1 Good 35 37 PPB
1:00 AM WBY O3 8 Good 4 4 PPB
1:00 AM WBY PM10 24 Good 26 28 µg/m3
1:00 AM WBY PM2.5 24 Good 47 8 µg/m3

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