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AQI Calculations on 06/08/2026 1:00AM - 3:00AM

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.
3:00 AM ACAD O3 8 Good 43 46 PPB
3:00 AM ACC PM10 24 Good 13 14 µg/m3
3:00 AM ACC PM2.5 24 Good 18 3 µg/m3
3:00 AM ADB PM10 24 Good 30 32 µg/m3
3:00 AM ADB PM2.5 24 Good 26 4 µg/m3
3:00 AM ALA PM10 24 Good 22 24 µg/m3
3:00 AM ALA PM2.5 24 Good 26 4 µg/m3
3:00 AM ASPN2 PM10 24 Good 16 17 µg/m3
3:00 AM ASPN2 PM2.5 24 Good 17 3 µg/m3
3:00 AM AURE O3 8 Good 41 44 PPB
3:00 AM BHWK O3 8 Good 47 51 PPB
3:00 AM BOU PM10 24 Good 20 22 µg/m3
3:00 AM BOU PM2.5 24 Good 21 3 µg/m3
3:00 AM BOUR O3 8 Good 37 40 PPB
3:00 AM CAMP NO2 1 Good 13 14 PPB
3:00 AM CAMP NO2 1 Good 13 14 PPB
3:00 AM CAMP O3 8 Good 26 28 PPB
3:00 AM CAMP PM10 24 Good 12 13 µg/m3
3:00 AM CAMP PM2.5 24 Good 21 3 µg/m3
3:00 AM CAMP SO2 1 Good 1 1 PPB
3:00 AM CAMP SO2 1 Good 1 1 PPB
3:00 AM CAN PM10 24 Good 16 17 µg/m3
3:00 AM CAN PM2.5 24 Good 18 3 µg/m3
3:00 AM CASA CO 8 Good 2 0.2 PPM
3:00 AM CASA NO2 1 Good 16 17 PPB
3:00 AM CASA O3 8 Good 20 22 PPB
3:00 AM CASA PM10 24 Good 19 20 µg/m3
3:00 AM CASA PM2.5 24 Good 23 4 µg/m3
3:00 AM CASA SO2 1 Good 1 1 PPB
3:00 AM CCOL PM10 24 Good 18 19 µg/m3
3:00 AM CCOL PM2.5 24 Good 22 3 µg/m3
3:00 AM CTZ O3 8 Good 38 41 PPB
3:00 AM DELT PM10 24 Good 46 50 µg/m3
3:00 AM DELT PM2.5 24 Good 32 5 µg/m3
3:00 AM DELT PM2.5 24 Good 32 5 µg/m3
3:00 AM EVG O3 8 Good 41 44 PPB
3:00 AM FOS O3 8 Good 45 49 PPB
3:00 AM FTC CO 8 Good 0 0.0 PPM
3:00 AM FTC O3 8 Good 45 49 PPB
3:00 AM FTCF PM10 24 Good 15 16 µg/m3
3:00 AM FTCF PM2.5 24 Good 18 3 µg/m3
3:00 AM FTCW O3 8 Good 43 46 PPB
3:00 AM GJPB PM10 24 Good 9 10 µg/m3
3:00 AM GJPB PM2.5 24 Good 17 3 µg/m3
3:00 AM GREH PM10 24 Good 14 15 µg/m3
3:00 AM GREH PM2.5 24 Good 18 3 µg/m3
3:00 AM GRET CO 8 Good 0 0.0 PPM
3:00 AM GRET O3 8 Good 40 43 PPB
3:00 AM HLD O3 8 Good 36 39 PPB
3:00 AM I25DEN CO 8 Good 5 0.4 PPM
3:00 AM I25DEN NO2 1 Good 24 25 PPB
3:00 AM I25DEN PM10 24 Good 21 23 µg/m3
3:00 AM I25DEN PM2.5 24 Good 24 4 µg/m3
3:00 AM I25GLO NO2 1 Good 12 13 PPB
3:00 AM I25GLO PM10 24 Good 25 27 µg/m3
3:00 AM I25GLO PM2.5 24 Good 26 4 µg/m3
3:00 AM LAST NO2 1 Good 3 3 PPB
3:00 AM LAST O3 8 Good 39 42 PPB
3:00 AM LMB PM10 24 Good 16 17 µg/m3
3:00 AM LMB PM2.5 24 Good 23 4 µg/m3
3:00 AM LNGM PM10 24 Good 21 23 µg/m3
3:00 AM LNGM PM2.5 24 Good 23 4 µg/m3
3:00 AM MAN O3 8 Good 49 53 PPB
3:00 AM MFP NO2 1 Good 1 1 PPB
3:00 AM MFP O3 8 Good 44 48 PPB
3:00 AM NJH PM10 24 Good 18 19 µg/m3
3:00 AM NJH PM2.5 24 Good 23 4 µg/m3
3:00 AM NREL O3 8 Good 44 48 PPB
3:00 AM PAG PM10 24 Good 20 22 µg/m3
3:00 AM PAG PM2.5 24 Good 21 3 µg/m3
3:00 AM PAL O3 8 Good 45 49 PPB
3:00 AM PFS PM10 24 Good 18 19 µg/m3
3:00 AM PFS PM2.5 24 Good 19 3 µg/m3
3:00 AM PMS PM2.5 24 Good 23 4 µg/m3
3:00 AM PWES O3 8 Good 44 47 PPB
3:00 AM RFN NO2 1 Good 1 1 PPB
3:00 AM RFN O3 8 Good 48 52 PPB
3:00 AM RIFL PM2.5 24 Good 21 3 µg/m3
3:00 AM RIFLO3 O3 8 Good 41 44 PPB
3:00 AM SSMB PM10 24 Good 16 17 µg/m3
3:00 AM SSMB PM2.5 24 Good 21 3 µg/m3
3:00 AM TEL PM10 24 Good 17 18 µg/m3
3:00 AM TEL PM2.5 24 Good 19 3 µg/m3
3:00 AM TIM O3 8 Good 40 43 PPB
3:00 AM TIM PM10 24 Good 19 20 µg/m3
3:00 AM TIM PM2.5 24 Good 20 3 µg/m3
3:00 AM WBY NO2 1 Good 4 4 PPB
3:00 AM WBY NO2 1 Good 4 4 PPB
3:00 AM WBY O3 8 Good 28 30 PPB
3:00 AM WBY PM10 24 Good 27 29 µg/m3
3:00 AM WBY PM2.5 24 Good 23 4 µg/m3
2:00 AM ACAD O3 8 Good 44 47 PPB
2:00 AM ACC PM10 24 Good 13 14 µg/m3
2:00 AM ACC PM2.5 24 Good 18 3 µg/m3
2:00 AM ADB PM10 24 Good 29 31 µg/m3
2:00 AM ADB PM2.5 24 Good 26 4 µg/m3
2:00 AM ALA PM10 24 Good 21 23 µg/m3
2:00 AM ALA PM2.5 24 Good 26 4 µg/m3
2:00 AM ASPN2 PM10 24 Good 16 17 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 17 3 µg/m3
2:00 AM AURE O3 8 Good 42 45 PPB
2:00 AM BHWK O3 8 Good 47 51 PPB
2:00 AM BOU PM10 24 Good 20 22 µg/m3
2:00 AM BOU PM2.5 24 Good 21 3 µg/m3
2:00 AM BOUR O3 8 Good 39 42 PPB
2:00 AM CAMP NO2 1 Good 18 19 PPB
2:00 AM CAMP NO2 1 Good 18 19 PPB
2:00 AM CAMP O3 8 Good 27 29 PPB
2:00 AM CAMP PM10 24 Good 12 13 µg/m3
2:00 AM CAMP PM2.5 24 Good 21 3 µg/m3
2:00 AM CAN PM10 24 Good 16 17 µg/m3
2:00 AM CAN PM2.5 24 Good 18 3 µg/m3
2:00 AM CASA CO 8 Good 2 0.2 PPM
2:00 AM CASA NO2 1 Good 30 32 PPB
2:00 AM CASA O3 8 Good 22 24 PPB
2:00 AM CASA PM10 24 Good 19 20 µg/m3
2:00 AM CASA PM2.5 24 Good 23 4 µg/m3
2:00 AM CCOL PM10 24 Good 18 19 µg/m3
2:00 AM CCOL PM2.5 24 Good 22 3 µg/m3
2:00 AM CTZ O3 8 Good 40 43 PPB
2:00 AM DELT PM10 24 Good 46 50 µg/m3
2:00 AM DELT PM2.5 24 Good 33 5 µg/m3
2:00 AM DELT PM2.5 24 Good 33 5 µg/m3
2:00 AM EVG O3 8 Good 43 46 PPB
2:00 AM FOS NO2 1 Good 1 1 PPB
2:00 AM FOS O3 8 Good 45 49 PPB
2:00 AM FTC CO 8 Good 0 0.0 PPM
2:00 AM FTC O3 8 Good 45 49 PPB
2:00 AM FTCF PM10 24 Good 15 16 µg/m3
2:00 AM FTCF PM2.5 24 Good 18 3 µg/m3
2:00 AM FTCW O3 8 Good 44 47 PPB
2:00 AM GJPB PM10 24 Good 9 10 µg/m3
2:00 AM GJPB PM2.5 24 Good 17 3 µg/m3
2:00 AM GREH PM10 24 Good 14 15 µg/m3
2:00 AM GREH PM2.5 24 Good 18 3 µg/m3
2:00 AM GRET CO 8 Good 0 0.0 PPM
2:00 AM GRET O3 8 Good 41 44 PPB
2:00 AM HLD O3 8 Good 37 40 PPB
2:00 AM I25DEN CO 8 Good 3 0.3 PPM
2:00 AM I25DEN NO2 1 Good 17 18 PPB
2:00 AM I25DEN PM10 24 Good 21 23 µg/m3
2:00 AM I25DEN PM2.5 24 Good 24 4 µg/m3
2:00 AM I25GLO NO2 1 Good 29 31 PPB
2:00 AM I25GLO PM10 24 Good 25 27 µg/m3
2:00 AM I25GLO PM2.5 24 Good 26 4 µg/m3
2:00 AM LAST NO2 1 Good 2 2 PPB
2:00 AM LAST O3 8 Good 40 43 PPB
2:00 AM LMB PM10 24 Good 15 16 µg/m3
2:00 AM LMB PM2.5 24 Good 23 4 µg/m3
2:00 AM LNGM PM10 24 Good 22 24 µg/m3
2:00 AM LNGM PM2.5 24 Good 24 4 µg/m3
2:00 AM MAN O3 8 Good 49 53 PPB
2:00 AM MFP O3 8 Good 45 49 PPB
2:00 AM NJH PM10 24 Good 18 19 µg/m3
2:00 AM NJH PM2.5 24 Good 23 4 µg/m3
2:00 AM NREL O3 8 Good 47 51 PPB
2:00 AM PAG PM10 24 Good 20 22 µg/m3
2:00 AM PAG PM2.5 24 Good 21 3 µg/m3
2:00 AM PAL O3 8 Good 47 51 PPB
2:00 AM PFS PM10 24 Good 17 18 µg/m3
2:00 AM PFS PM2.5 24 Good 18 3 µg/m3
2:00 AM PMS PM2.5 24 Good 24 4 µg/m3
2:00 AM PWES O3 8 Good 44 48 PPB
2:00 AM RFN O3 8 Good 49 53 PPB
2:00 AM RIFL PM2.5 24 Good 21 3 µg/m3
2:00 AM RIFLO3 O3 8 Good 43 46 PPB
2:00 AM SSMB PM10 24 Good 16 17 µg/m3
2:00 AM SSMB PM2.5 24 Good 21 3 µg/m3
2:00 AM TEL PM10 24 Good 17 18 µg/m3
2:00 AM TEL PM2.5 24 Good 19 3 µg/m3
2:00 AM TIM O3 8 Good 41 44 PPB
2:00 AM TIM PM10 24 Good 19 20 µg/m3
2:00 AM TIM PM2.5 24 Good 21 3 µg/m3
2:00 AM WBY NO2 1 Good 13 14 PPB
2:00 AM WBY NO2 1 Good 13 14 PPB
2:00 AM WBY O3 8 Good 30 32 PPB
2:00 AM WBY PM10 24 Good 26 28 µg/m3
2:00 AM WBY PM2.5 24 Good 23 4 µg/m3
1:00 AM ACAD O3 8 Good 44 47 PPB
1:00 AM ACC PM10 24 Good 12 13 µg/m3
1:00 AM ACC PM2.5 24 Good 17 3 µg/m3
1:00 AM ADB PM10 24 Good 28 30 µg/m3
1:00 AM ADB PM2.5 24 Good 26 4 µg/m3
1:00 AM ALA PM10 24 Good 21 23 µg/m3
1:00 AM ALA PM2.5 24 Good 26 4 µg/m3
1:00 AM ASPN2 PM10 24 Good 16 17 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 17 3 µg/m3
1:00 AM AURE O3 8 Good 44 48 PPB
1:00 AM BHWK O3 8 Good 47 51 PPB
1:00 AM BOU PM10 24 Good 21 23 µg/m3
1:00 AM BOU PM2.5 24 Good 21 3 µg/m3
1:00 AM BOUR O3 8 Good 40 43 PPB
1:00 AM CAMP NO2 1 Good 21 22 PPB
1:00 AM CAMP NO2 1 Good 21 22 PPB
1:00 AM CAMP O3 8 Good 30 32 PPB
1:00 AM CAMP PM10 24 Good 12 13 µg/m3
1:00 AM CAMP PM2.5 24 Good 20 3 µg/m3
1:00 AM CAN PM10 24 Good 16 17 µg/m3
1:00 AM CAN PM2.5 24 Good 18 3 µg/m3
1:00 AM CASA CO 8 Good 2 0.2 PPM
1:00 AM CASA NO2 1 Good 20 21 PPB
1:00 AM CASA O3 8 Good 27 29 PPB
1:00 AM CASA PM10 24 Good 18 19 µg/m3
1:00 AM CASA PM2.5 24 Good 23 4 µg/m3
1:00 AM CCOL PM10 24 Good 17 18 µg/m3
1:00 AM CCOL PM2.5 24 Good 22 3 µg/m3
1:00 AM CTZ O3 8 Good 43 46 PPB
1:00 AM DELT PM10 24 Good 46 50 µg/m3
1:00 AM DELT PM2.5 24 Good 33 6 µg/m3
1:00 AM DELT PM2.5 24 Good 33 6 µg/m3
1:00 AM EVG O3 8 Good 44 47 PPB
1:00 AM FOS NO2 1 Good 1 1 PPB
1:00 AM FOS O3 8 Good 45 49 PPB
1:00 AM FTC CO 8 Good 0 0.0 PPM
1:00 AM FTC O3 8 Good 46 50 PPB
1:00 AM FTCF PM10 24 Good 15 16 µg/m3
1:00 AM FTCF PM2.5 24 Good 19 3 µg/m3
1:00 AM FTCW O3 8 Good 44 48 PPB
1:00 AM GJPB PM10 24 Good 9 10 µg/m3
1:00 AM GJPB PM2.5 24 Good 17 3 µg/m3
1:00 AM GREH PM10 24 Good 14 15 µg/m3
1:00 AM GREH PM2.5 24 Good 18 3 µg/m3
1:00 AM GRET CO 8 Good 0 0.0 PPM
1:00 AM GRET O3 8 Good 42 45 PPB
1:00 AM HLD O3 8 Good 38 41 PPB
1:00 AM I25DEN CO 8 Good 5 0.4 PPM
1:00 AM I25DEN NO2 1 Good 29 31 PPB
1:00 AM I25DEN PM10 24 Good 20 22 µg/m3
1:00 AM I25DEN PM2.5 24 Good 23 4 µg/m3
1:00 AM I25GLO NO2 1 Good 38 40 PPB
1:00 AM I25GLO PM10 24 Good 25 27 µg/m3
1:00 AM I25GLO PM2.5 24 Good 26 4 µg/m3
1:00 AM LAST NO2 1 Good 2 2 PPB
1:00 AM LAST O3 8 Good 42 45 PPB
1:00 AM LMB PM10 24 Good 15 16 µg/m3
1:00 AM LMB PM2.5 24 Good 22 4 µg/m3
1:00 AM LNGM PM10 24 Good 22 24 µg/m3
1:00 AM LNGM PM2.5 24 Good 24 4 µg/m3
1:00 AM MAN O3 8 Good 50 54 PPB
1:00 AM MFP NO2 1 Good 1 1 PPB
1:00 AM MFP O3 8 Good 46 50 PPB
1:00 AM NJH PM10 24 Good 18 19 µg/m3
1:00 AM NJH PM2.5 24 Good 23 4 µg/m3
1:00 AM NREL O3 8 Good 47 51 PPB
1:00 AM PAG PM10 24 Good 20 22 µg/m3
1:00 AM PAG PM2.5 24 Good 21 3 µg/m3
1:00 AM PAL O3 8 Good 48 52 PPB
1:00 AM PFS PM10 24 Good 17 18 µg/m3
1:00 AM PFS PM2.5 24 Good 18 3 µg/m3
1:00 AM PMS PM2.5 24 Good 23 4 µg/m3
1:00 AM PWES O3 8 Good 45 49 PPB
1:00 AM RFN O3 8 Good 50 54 PPB
1:00 AM RIFL PM2.5 24 Good 22 4 µg/m3
1:00 AM RIFLO3 O3 8 Good 44 47 PPB
1:00 AM SSMB PM10 24 Good 16 17 µg/m3
1:00 AM SSMB PM2.5 24 Good 21 3 µg/m3
1:00 AM TEL PM10 24 Good 17 18 µg/m3
1:00 AM TEL PM2.5 24 Good 19 3 µg/m3
1:00 AM TIM O3 8 Good 42 45 PPB
1:00 AM TIM PM10 24 Good 19 20 µg/m3
1:00 AM TIM PM2.5 24 Good 21 3 µg/m3
1:00 AM WBY NO2 1 Good 21 22 PPB
1:00 AM WBY NO2 1 Good 21 22 PPB
1:00 AM WBY O3 8 Good 32 35 PPB
1:00 AM WBY PM10 24 Good 26 28 µg/m3
1:00 AM WBY PM2.5 24 Good 23 4 µg/m3

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