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AQI Calculations on 08/13/2026 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 46 50 PPB
2:00 AM ACC PM10 24 Good 19 20 µg/m3
2:00 AM ACC PM2.5 24 Good 43 7 µg/m3
2:00 AM ADB PM10 24 Moderate 59 72 µg/m3
2:00 AM ADB PM2.5 24 Moderate 56 12 µg/m3
2:00 AM ALA PM10 24 Good 27 29 µg/m3
2:00 AM ALA PM2.5 24 Good 50 9 µg/m3
2:00 AM ASPN O3 8 Good 29 31 PPB
2:00 AM ASPN2 PM10 24 Good 15 16 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 33 5 µg/m3
2:00 AM BHWK O3 8 Good 31 34 PPB
2:00 AM BOU PM10 24 Good 21 23 µg/m3
2:00 AM BOU PM2.5 24 Good 41 7 µg/m3
2:00 AM BOUR O3 8 Good 44 48 PPB
2:00 AM CAMP NO2 1 Good 6 6 PPB
2:00 AM CAMP NO2 1 Good 6 6 PPB
2:00 AM CAMP O3 8 Good 50 54 PPB
2:00 AM CAMP PM10 24 Good 24 26 µg/m3
2:00 AM CAMP PM2.5 24 Good 47 8 µg/m3
2:00 AM CAMP SO2 1 Good 1 1 PPB
2:00 AM CAMP SO2 1 Good 1 1 PPB
2:00 AM CAN PM10 24 Good 29 31 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 5 5 PPB
2:00 AM CASA O3 8 Good 50 54 PPB
2:00 AM CASA PM10 24 Good 19 21 µg/m3
2:00 AM CASA PM2.5 24 Good 47 8 µg/m3
2:00 AM CCOL PM10 24 Good 28 30 µg/m3
2:00 AM CCOL PM2.5 24 Moderate 51 9 µg/m3
2:00 AM CHAT NO2 1 Good 8 8 PPB
2:00 AM CHAT O3 8 Good 41 44 PPB
2:00 AM CHAT PM10 24 Good 15 16 µg/m3
2:00 AM CHAT PM2.5 24 Good 38 6 µg/m3
2:00 AM CTZ O3 8 Moderate 51 55 PPB
2:00 AM DELT PM10 24 Good 31 33 µg/m3
2:00 AM DELT PM2.5 24 Good 38 6 µg/m3
2:00 AM DELT PM2.5 24 Good 38 6 µg/m3
2:00 AM EVG O3 8 Good 40 43 PPB
2:00 AM FOS NO2 1 Good 8 8 PPB
2:00 AM FOS O3 8 Good 36 39 PPB
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM FTC O3 8 Good 37 40 PPB
2:00 AM FTCF PM10 24 Good 23 25 µg/m3
2:00 AM FTCF PM2.5 24 Moderate 53 10 µg/m3
2:00 AM FTCW O3 8 Good 38 41 PPB
2:00 AM GREH PM10 24 Good 31 33 µg/m3
2:00 AM GREH PM2.5 24 Moderate 54 10 µg/m3
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM GRET O3 8 Good 44 48 PPB
2:00 AM HLD O3 8 Good 48 52 PPB
2:00 AM I25DEN CO 8 Good 2 0.2 PPM
2:00 AM I25DEN NO2 1 Good 13 14 PPB
2:00 AM I25DEN PM10 24 Good 22 24 µg/m3
2:00 AM I25DEN PM2.5 24 Good 49 8 µg/m3
2:00 AM I25GLO NO2 1 Good 14 15 PPB
2:00 AM I25GLO PM10 24 Good 25 27 µg/m3
2:00 AM I25GLO PM2.5 24 Good 50 9 µg/m3
2:00 AM LAST NO2 1 Good 8 8 PPB
2:00 AM LAST O3 8 Good 38 41 PPB
2:00 AM LMB PM10 24 Good 44 48 µg/m3
2:00 AM LMB PM2.5 24 Moderate 53 10 µg/m3
2:00 AM LNGM PM10 24 Good 29 31 µg/m3
2:00 AM LNGM PM2.5 24 Moderate 53 10 µg/m3
2:00 AM MAN O3 8 Moderate 58 57 PPB
2:00 AM MFP NO2 1 Good 3 3 PPB
2:00 AM MFP O3 8 Good 44 48 PPB
2:00 AM NJH PM10 24 Good 18 19 µg/m3
2:00 AM NJH PM2.5 24 Good 45 8 µg/m3
2:00 AM NREL O3 8 Moderate 54 56 PPB
2:00 AM PAG PM10 24 Good 13 14 µg/m3
2:00 AM PAG PM2.5 24 Good 28 5 µg/m3
2:00 AM PAL O3 8 Good 46 50 PPB
2:00 AM PFS PM10 24 Good 27 29 µg/m3
2:00 AM PFS PM2.5 24 Moderate 53 10 µg/m3
2:00 AM PMS PM2.5 24 Moderate 56 11 µg/m3
2:00 AM PWES O3 8 Moderate 67 60 PPB
2:00 AM RFN O3 8 Good 49 53 PPB
2:00 AM RIFLO3 O3 8 Good 32 35 PPB
2:00 AM SSMB PM10 24 Good 15 16 µg/m3
2:00 AM SSMB PM2.5 24 Good 38 6 µg/m3
2:00 AM TEL PM10 24 Good 15 16 µg/m3
2:00 AM TEL PM2.5 24 Good 29 5 µg/m3
2:00 AM TIM NO2 1 Good 8 9 PPB
2:00 AM TIM O3 8 Good 32 35 PPB
2:00 AM TIM PM10 24 Good 23 25 µg/m3
2:00 AM TIM PM2.5 24 Moderate 52 9 µg/m3
2:00 AM WBY NO2 1 Good 6 6 PPB
2:00 AM WBY NO2 1 Good 6 6 PPB
2:00 AM WBY O3 8 Moderate 54 56 PPB
2:00 AM WBY PM10 24 Good 39 42 µg/m3
2:00 AM WBY PM2.5 24 Moderate 52 9 µg/m3
1:00 AM ACAD O3 8 Moderate 54 56 PPB
1:00 AM ACC PM10 24 Good 19 21 µg/m3
1:00 AM ACC PM2.5 24 Good 43 7 µg/m3
1:00 AM ADB PM10 24 Moderate 60 73 µg/m3
1:00 AM ADB PM2.5 24 Moderate 57 12 µg/m3
1:00 AM ALA PM10 24 Good 27 29 µg/m3
1:00 AM ALA PM2.5 24 Good 50 9 µg/m3
1:00 AM ASPN O3 8 Good 32 35 PPB
1:00 AM ASPN2 PM10 24 Good 15 16 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 33 5 µg/m3
1:00 AM BHWK O3 8 Good 34 37 PPB
1:00 AM BOU PM10 24 Good 21 23 µg/m3
1:00 AM BOU PM2.5 24 Good 41 7 µg/m3
1:00 AM BOUR O3 8 Good 46 50 PPB
1:00 AM CAMP NO2 1 Good 8 9 PPB
1:00 AM CAMP NO2 1 Good 8 9 PPB
1:00 AM CAMP O3 8 Moderate 51 55 PPB
1:00 AM CAMP PM10 24 Good 24 26 µg/m3
1:00 AM CAMP PM2.5 24 Good 48 8 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 29 31 µg/m3
1:00 AM CAN PM2.5 24 Good 49 8 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 4 4 PPB
1:00 AM CASA O3 8 Moderate 58 57 PPB
1:00 AM CASA PM10 24 Good 19 21 µg/m3
1:00 AM CASA PM2.5 24 Good 48 8 µg/m3
1:00 AM CCOL PM10 24 Good 29 31 µg/m3
1:00 AM CCOL PM2.5 24 Moderate 51 9 µg/m3
1:00 AM CHAT NO2 1 Good 9 10 PPB
1:00 AM CHAT O3 8 Good 46 50 PPB
1:00 AM CHAT PM10 24 Good 15 16 µg/m3
1:00 AM CHAT PM2.5 24 Good 38 6 µg/m3
1:00 AM CTZ O3 8 Moderate 58 57 PPB
1:00 AM DELT PM10 24 Good 31 33 µg/m3
1:00 AM DELT PM2.5 24 Good 38 6 µg/m3
1:00 AM DELT PM2.5 24 Good 38 6 µg/m3
1:00 AM EVG O3 8 Good 45 49 PPB
1:00 AM FOS NO2 1 Good 8 8 PPB
1:00 AM FOS O3 8 Good 41 44 PPB
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM FTC O3 8 Good 42 45 PPB
1:00 AM FTCF PM10 24 Good 24 26 µg/m3
1:00 AM FTCF PM2.5 24 Moderate 53 10 µg/m3
1:00 AM FTCW NO2 1 Good 5 5 PPB
1:00 AM FTCW O3 8 Good 40 43 PPB
1:00 AM GREH PM10 24 Good 31 33 µg/m3
1:00 AM GREH PM2.5 24 Moderate 54 10 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 47 51 PPB
1:00 AM HLD O3 8 Moderate 58 57 PPB
1:00 AM I25DEN CO 8 Good 3 0.3 PPM
1:00 AM I25DEN NO2 1 Good 9 10 PPB
1:00 AM I25DEN PM10 24 Good 22 24 µg/m3
1:00 AM I25DEN PM2.5 24 Good 50 9 µg/m3
1:00 AM I25GLO NO2 1 Good 16 17 PPB
1:00 AM I25GLO PM10 24 Good 25 27 µg/m3
1:00 AM I25GLO PM2.5 24 Moderate 51 9 µg/m3
1:00 AM LAST NO2 1 Good 7 7 PPB
1:00 AM LAST O3 8 Good 44 47 PPB
1:00 AM LMB PM10 24 Good 44 48 µg/m3
1:00 AM LMB PM2.5 24 Moderate 53 10 µg/m3
1:00 AM LNGM PM10 24 Good 29 31 µg/m3
1:00 AM LNGM PM2.5 24 Moderate 53 10 µg/m3
1:00 AM MAN O3 8 Moderate 71 61 PPB
1:00 AM MFP NO2 1 Good 3 3 PPB
1:00 AM MFP O3 8 Good 47 51 PPB
1:00 AM NJH PM10 24 Good 18 19 µg/m3
1:00 AM NJH PM2.5 24 Good 46 8 µg/m3
1:00 AM NREL O3 8 Moderate 64 59 PPB
1:00 AM PAG PM10 24 Good 13 14 µg/m3
1:00 AM PAG PM2.5 24 Good 29 5 µg/m3
1:00 AM PAL O3 8 Good 49 53 PPB
1:00 AM PFS PM10 24 Good 27 29 µg/m3
1:00 AM PFS PM2.5 24 Moderate 53 10 µg/m3
1:00 AM PMS PM2.5 24 Moderate 56 11 µg/m3
1:00 AM PWES O3 8 Moderate 74 62 PPB
1:00 AM RFN NO2 1 Good 4 4 PPB
1:00 AM RFN O3 8 Moderate 51 55 PPB
1:00 AM RIFLO3 O3 8 Good 31 34 PPB
1:00 AM SSMB PM10 24 Good 15 16 µg/m3
1:00 AM SSMB PM2.5 24 Good 39 7 µg/m3
1:00 AM TEL PM10 24 Good 15 16 µg/m3
1:00 AM TEL PM2.5 24 Good 30 5 µg/m3
1:00 AM TIM NO2 1 Good 8 9 PPB
1:00 AM TIM O3 8 Good 37 40 PPB
1:00 AM TIM PM10 24 Good 23 25 µg/m3
1:00 AM TIM PM2.5 24 Moderate 52 9 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 64 59 PPB
1:00 AM WBY PM10 24 Good 39 42 µg/m3
1:00 AM WBY PM2.5 24 Moderate 52 9 µg/m3

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