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AQI Calculations on 07/22/2026 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 47 51 PPB
2:00 AM ACC PM10 24 Good 24 26 µg/m3
2:00 AM ACC PM2.5 24 Good 49 8 µg/m3
2:00 AM ADB PM10 24 Good 47 51 µg/m3
2:00 AM ADB PM2.5 24 Moderate 58 12 µg/m3
2:00 AM ALA PM10 24 Good 21 23 µg/m3
2:00 AM ALA PM2.5 24 Good 24 4 µg/m3
2:00 AM ASPN O3 8 Good 31 34 PPB
2:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 26 4 µg/m3
2:00 AM AURE O3 8 Moderate 54 56 PPB
2:00 AM BHWK O3 8 Good 50 54 PPB
2:00 AM BOU PM10 24 Good 32 35 µg/m3
2:00 AM BOU PM2.5 24 Moderate 55 11 µg/m3
2:00 AM BOUR O3 8 Good 44 48 PPB
2:00 AM CAMP NO2 1 Good 7 7 PPB
2:00 AM CAMP NO2 1 Good 7 7 PPB
2:00 AM CAMP O3 8 Good 48 52 PPB
2:00 AM CAMP PM10 24 Good 25 27 µg/m3
2:00 AM CAMP PM2.5 24 Moderate 56 11 µg/m3
2:00 AM CAN PM10 24 Good 36 39 µg/m3
2:00 AM CAN PM2.5 24 Good 37 6 µg/m3
2:00 AM CASA CO 8 Good 1 0.1 PPM
2:00 AM CASA NO2 1 Good 3 3 PPB
2:00 AM CASA O3 8 Good 50 54 PPB
2:00 AM CASA PM10 24 Good 36 39 µg/m3
2:00 AM CASA PM2.5 24 Moderate 56 11 µg/m3
2:00 AM CCOL PM10 24 Good 44 48 µg/m3
2:00 AM CCOL PM2.5 24 Good 48 8 µg/m3
2:00 AM CHAT O3 8 Good 50 54 PPB
2:00 AM CHAT PM10 24 Good 31 34 µg/m3
2:00 AM CHAT PM2.5 24 Moderate 52 9 µg/m3
2:00 AM CTZ O3 8 Good 26 28 PPB
2:00 AM DELT PM10 24 Good 17 18 µg/m3
2:00 AM DELT PM2.5 24 Good 39 7 µg/m3
2:00 AM DELT PM2.5 24 Good 39 7 µg/m3
2:00 AM EVG O3 8 Good 20 22 PPB
2:00 AM FOS NO2 1 Good 5 5 PPB
2:00 AM FOS O3 8 Good 48 52 PPB
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM FTC O3 8 Good 45 49 PPB
2:00 AM FTCF PM10 24 Good 37 40 µg/m3
2:00 AM FTCF PM2.5 24 Moderate 61 14 µg/m3
2:00 AM FTCW O3 8 Good 47 51 PPB
2:00 AM GREH PM10 24 Good 36 39 µg/m3
2:00 AM GREH PM2.5 24 Moderate 58 12 µg/m3
2:00 AM GRET CO 8 Good 0 0.0 PPM
2:00 AM GRET O3 8 Moderate 58 57 PPB
2:00 AM HLD O3 8 Moderate 64 59 PPB
2:00 AM I25DEN CO 8 Good 2 0.2 PPM
2:00 AM I25DEN NO2 1 Good 10 11 PPB
2:00 AM I25DEN PM10 24 Good 34 37 µg/m3
2:00 AM I25DEN PM2.5 24 Moderate 56 11 µg/m3
2:00 AM I25GLO NO2 1 Good 12 13 PPB
2:00 AM I25GLO PM10 24 Good 42 45 µg/m3
2:00 AM I25GLO PM2.5 24 Moderate 56 11 µg/m3
2:00 AM LAST NO2 1 Good 3 3 PPB
2:00 AM LAST O3 8 Good 48 52 PPB
2:00 AM LMB PM10 24 Good 47 51 µg/m3
2:00 AM LMB PM2.5 24 Moderate 52 9 µg/m3
2:00 AM LNGM PM10 24 Good 35 38 µg/m3
2:00 AM LNGM PM2.5 24 Moderate 58 12 µg/m3
2:00 AM MAN O3 8 Moderate 54 56 PPB
2:00 AM MFP NO2 1 Good 3 3 PPB
2:00 AM MFP O3 8 Moderate 54 56 PPB
2:00 AM NJH PM10 24 Good 36 39 µg/m3
2:00 AM NJH PM2.5 24 Moderate 55 11 µg/m3
2:00 AM NREL O3 8 Moderate 67 60 PPB
2:00 AM PAG PM10 24 Good 16 17 µg/m3
2:00 AM PAG PM2.5 24 Good 24 4 µg/m3
2:00 AM PAL O3 8 Moderate 71 61 PPB
2:00 AM PFS PM10 24 Good 34 37 µg/m3
2:00 AM PFS PM2.5 24 Good 35 6 µg/m3
2:00 AM PMS PM2.5 24 Moderate 59 13 µg/m3
2:00 AM PWES O3 8 Good 43 46 PPB
2:00 AM RFN O3 8 Moderate 61 58 PPB
2:00 AM RIFLO3 O3 8 Good 49 53 PPB
2:00 AM SSMB PM10 24 Good 15 16 µg/m3
2:00 AM SSMB PM2.5 24 Good 26 4 µg/m3
2:00 AM TEL PM10 24 Good 21 23 µg/m3
2:00 AM TEL PM2.5 24 Good 32 5 µg/m3
2:00 AM TIM NO2 1 Good 6 6 PPB
2:00 AM TIM O3 8 Good 44 48 PPB
2:00 AM TIM PM10 24 Good 32 35 µg/m3
2:00 AM TIM PM2.5 24 Moderate 59 13 µg/m3
2:00 AM WBY NO2 1 Good 3 3 PPB
2:00 AM WBY NO2 1 Good 3 3 PPB
2:00 AM WBY O3 8 Moderate 58 57 PPB
2:00 AM WBY PM10 24 Good 38 41 µg/m3
2:00 AM WBY PM2.5 24 Moderate 55 11 µg/m3
1:00 AM ACAD O3 8 Good 49 53 PPB
1:00 AM ACC PM10 24 Good 24 26 µg/m3
1:00 AM ACC PM2.5 24 Good 49 8 µg/m3
1:00 AM ADB PM10 24 Good 48 52 µg/m3
1:00 AM ADB PM2.5 24 Moderate 58 13 µg/m3
1:00 AM ALA PM10 24 Good 21 23 µg/m3
1:00 AM ALA PM2.5 24 Good 24 4 µg/m3
1:00 AM ASPN O3 8 Good 34 37 PPB
1:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 25 4 µg/m3
1:00 AM AURE O3 8 Moderate 64 59 PPB
1:00 AM BHWK O3 8 Moderate 54 56 PPB
1:00 AM BOU PM10 24 Good 32 35 µg/m3
1:00 AM BOU PM2.5 24 Moderate 55 11 µg/m3
1:00 AM BOUR O3 8 Good 49 53 PPB
1:00 AM CAMP NO2 1 Good 8 8 PPB
1:00 AM CAMP NO2 1 Good 8 8 PPB
1:00 AM CAMP O3 8 Good 48 52 PPB
1:00 AM CAMP PM10 24 Good 26 28 µg/m3
1:00 AM CAMP PM2.5 24 Moderate 56 11 µg/m3
1:00 AM CAN PM10 24 Good 34 37 µg/m3
1:00 AM CAN PM2.5 24 Good 35 6 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 2 2 PPB
1:00 AM CASA O3 8 Moderate 51 55 PPB
1:00 AM CASA PM10 24 Good 37 40 µg/m3
1:00 AM CASA PM2.5 24 Moderate 56 11 µg/m3
1:00 AM CCOL PM10 24 Good 44 47 µg/m3
1:00 AM CCOL PM2.5 24 Good 46 8 µg/m3
1:00 AM CHAT O3 8 Moderate 54 56 PPB
1:00 AM CHAT PM10 24 Good 31 34 µg/m3
1:00 AM CHAT PM2.5 24 Moderate 52 9 µg/m3
1:00 AM CTZ O3 8 Good 28 30 PPB
1:00 AM DELT PM10 24 Good 17 18 µg/m3
1:00 AM DELT PM2.5 24 Good 39 7 µg/m3
1:00 AM DELT PM2.5 24 Good 39 7 µg/m3
1:00 AM EVG O3 8 Good 26 28 PPB
1:00 AM FOS NO2 1 Good 6 6 PPB
1:00 AM FOS O3 8 Moderate 51 55 PPB
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM FTC O3 8 Good 50 54 PPB
1:00 AM FTCF PM10 24 Good 37 40 µg/m3
1:00 AM FTCF PM2.5 24 Moderate 61 14 µg/m3
1:00 AM FTCW O3 8 Good 49 53 PPB
1:00 AM GREH PM10 24 Good 37 40 µg/m3
1:00 AM GREH PM2.5 24 Moderate 58 12 µg/m3
1:00 AM GRET CO 8 Good 0 0.0 PPM
1:00 AM GRET O3 8 Moderate 64 59 PPB
1:00 AM HLD O3 8 Moderate 67 60 PPB
1:00 AM I25DEN CO 8 Good 2 0.2 PPM
1:00 AM I25DEN NO2 1 Good 7 7 PPB
1:00 AM I25DEN PM10 24 Good 34 37 µg/m3
1:00 AM I25DEN PM2.5 24 Moderate 56 11 µg/m3
1:00 AM I25GLO NO2 1 Good 10 11 PPB
1:00 AM I25GLO PM10 24 Good 42 45 µg/m3
1:00 AM I25GLO PM2.5 24 Moderate 56 11 µg/m3
1:00 AM LAST NO2 1 Good 4 4 PPB
1:00 AM LAST O3 8 Moderate 51 55 PPB
1:00 AM LMB PM10 24 Good 45 49 µg/m3
1:00 AM LMB PM2.5 24 Moderate 51 9 µg/m3
1:00 AM LNGM PM10 24 Good 36 39 µg/m3
1:00 AM LNGM PM2.5 24 Moderate 58 12 µg/m3
1:00 AM MAN O3 8 Moderate 61 58 PPB
1:00 AM MFP NO2 1 Good 4 4 PPB
1:00 AM MFP O3 8 Moderate 61 58 PPB
1:00 AM NJH PM10 24 Good 37 40 µg/m3
1:00 AM NJH PM2.5 24 Moderate 55 11 µg/m3
1:00 AM NREL O3 8 Moderate 74 62 PPB
1:00 AM PAG PM10 24 Good 16 17 µg/m3
1:00 AM PAG PM2.5 24 Good 25 4 µg/m3
1:00 AM PAL O3 8 Moderate 71 61 PPB
1:00 AM PFS PM10 24 Good 32 35 µg/m3
1:00 AM PFS PM2.5 24 Good 33 6 µg/m3
1:00 AM PMS PM2.5 24 Moderate 59 13 µg/m3
1:00 AM PWES O3 8 Good 44 48 PPB
1:00 AM RFN NO2 1 Good 5 5 PPB
1:00 AM RFN O3 8 Moderate 67 60 PPB
1:00 AM RIFLO3 O3 8 Good 50 54 PPB
1:00 AM SSMB PM10 24 Good 15 16 µg/m3
1:00 AM SSMB PM2.5 24 Good 25 4 µg/m3
1:00 AM TEL PM10 24 Good 21 23 µg/m3
1:00 AM TEL PM2.5 24 Good 33 5 µg/m3
1:00 AM TIM NO2 1 Good 5 5 PPB
1:00 AM TIM O3 8 Good 48 52 PPB
1:00 AM TIM PM10 24 Good 32 35 µg/m3
1:00 AM TIM PM2.5 24 Moderate 59 13 µg/m3
1:00 AM WBY NO2 1 Good 2 2 PPB
1:00 AM WBY NO2 1 Good 2 2 PPB
1:00 AM WBY O3 8 Moderate 61 58 PPB
1:00 AM WBY PM10 24 Good 39 42 µg/m3
1:00 AM WBY PM2.5 24 Moderate 55 11 µg/m3

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