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AQI Calculations on 05/08/2026 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 31 34 PPB
3:00 AM ACC PM10 24 Good 6 6 µg/m3
3:00 AM ACC PM2.5 24 Good 14 2 µg/m3
3:00 AM ADB PM10 24 Good 19 21 µg/m3
3:00 AM ADB PM2.5 24 Good 24 4 µg/m3
3:00 AM ALA PM10 24 Good 10 11 µg/m3
3:00 AM ALA PM2.5 24 Good 19 3 µg/m3
3:00 AM ASPN O3 8 Good 31 33 PPB
3:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
3:00 AM ASPN2 PM2.5 24 Good 18 3 µg/m3
3:00 AM AURE O3 8 Good 39 42 PPB
3:00 AM BHWK O3 8 Good 39 42 PPB
3:00 AM BOU PM10 24 Good 8 9 µg/m3
3:00 AM BOU PM2.5 24 Good 17 3 µg/m3
3:00 AM BOUR O3 8 Good 31 33 PPB
3:00 AM CAMP NO2 1 Good 14 15 PPB
3:00 AM CAMP NO2 1 Good 14 15 PPB
3:00 AM CAMP O3 8 Good 30 32 PPB
3:00 AM CAMP PM10 24 Good 6 7 µg/m3
3:00 AM CAMP PM2.5 24 Good 18 3 µg/m3
3:00 AM CAN PM10 24 Good 9 10 µg/m3
3:00 AM CAN PM2.5 24 Good 16 2 µg/m3
3:00 AM CASA CO 8 Good 1 0.1 PPM
3:00 AM CASA NO2 1 Good 11 12 PPB
3:00 AM CASA O3 8 Good 29 31 PPB
3:00 AM CASA PM10 24 Good 12 13 µg/m3
3:00 AM CASA PM2.5 24 Good 19 3 µg/m3
3:00 AM CCOL PM10 24 Good 10 11 µg/m3
3:00 AM CCOL PM2.5 24 Good 21 3 µg/m3
3:00 AM CHAT O3 8 Good 32 35 PPB
3:00 AM CHAT PM10 24 Good 6 7 µg/m3
3:00 AM CHAT PM2.5 24 Good 14 2 µg/m3
3:00 AM CTZ O3 8 Good 30 32 PPB
3:00 AM DELT PM10 24 Good 15 16 µg/m3
3:00 AM DELT PM2.5 24 Good 21 3 µg/m3
3:00 AM DELT PM2.5 24 Good 21 3 µg/m3
3:00 AM EVG O3 8 Good 33 36 PPB
3:00 AM FOS NO2 1 Good 4 4 PPB
3:00 AM FOS O3 8 Good 33 36 PPB
3:00 AM FTC CO 8 Good 1 0.1 PPM
3:00 AM FTC O3 8 Good 37 40 PPB
3:00 AM FTCF PM10 24 Good 7 8 µg/m3
3:00 AM FTCF PM2.5 24 Good 26 4 µg/m3
3:00 AM FTCW O3 8 Good 35 38 PPB
3:00 AM GJPB PM10 24 Good 6 7 µg/m3
3:00 AM GJPB PM2.5 24 Good 16 2 µg/m3
3:00 AM GREH PM10 24 Good 6 6 µg/m3
3:00 AM GREH PM2.5 24 Good 24 4 µg/m3
3:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM GRET O3 8 Good 36 39 PPB
3:00 AM I25DEN CO 8 Good 2 0.2 PPM
3:00 AM I25DEN NO2 1 Good 19 20 PPB
3:00 AM I25DEN PM10 24 Good 17 18 µg/m3
3:00 AM I25DEN PM2.5 24 Good 22 3 µg/m3
3:00 AM I25GLO NO2 1 Good 28 30 PPB
3:00 AM I25GLO PM10 24 Good 25 27 µg/m3
3:00 AM I25GLO PM2.5 24 Good 24 4 µg/m3
3:00 AM LAST NO2 1 Good 4 4 PPB
3:00 AM LAST O3 8 Good 30 32 PPB
3:00 AM LMB PM10 24 Good 6 7 µg/m3
3:00 AM LMB PM2.5 24 Good 12 2 µg/m3
3:00 AM LNGM PM10 24 Good 10 11 µg/m3
3:00 AM LNGM PM2.5 24 Good 23 4 µg/m3
3:00 AM MAN O3 8 Good 42 45 PPB
3:00 AM MFP O3 8 Good 36 39 PPB
3:00 AM NJH PM10 24 Good 10 11 µg/m3
3:00 AM NJH PM2.5 24 Good 18 3 µg/m3
3:00 AM NREL O3 8 Good 38 41 PPB
3:00 AM PAG PM10 24 Good 9 10 µg/m3
3:00 AM PAG PM2.5 24 Good 13 2 µg/m3
3:00 AM PAL O3 8 Good 38 41 PPB
3:00 AM PFS PM10 24 Good 10 11 µg/m3
3:00 AM PFS PM2.5 24 Good 18 3 µg/m3
3:00 AM PMS PM2.5 24 Good 18 3 µg/m3
3:00 AM PWES O3 8 Good 34 37 PPB
3:00 AM RFN NO2 1 Good 2 2 PPB
3:00 AM RFN O3 8 Good 40 43 PPB
3:00 AM RIFL PM2.5 24 Good 11 2 µg/m3
3:00 AM RIFLO3 O3 8 Good 23 25 PPB
3:00 AM SSMB PM10 24 Good 11 12 µg/m3
3:00 AM SSMB PM2.5 24 Good 19 3 µg/m3
3:00 AM TEL PM10 24 Good 10 11 µg/m3
3:00 AM TEL PM2.5 24 Good 15 2 µg/m3
3:00 AM TIM NO2 1 Good 3 3 PPB
3:00 AM TIM O3 8 Good 36 39 PPB
3:00 AM TIM PM10 24 Good 8 9 µg/m3
3:00 AM TIM PM2.5 24 Good 26 4 µg/m3
3:00 AM WBY NO2 1 Good 10 11 PPB
3:00 AM WBY NO2 1 Good 10 11 PPB
3:00 AM WBY O3 8 Good 33 36 PPB
3:00 AM WBY PM10 24 Good 15 16 µg/m3
3:00 AM WBY PM2.5 24 Good 21 3 µg/m3
2:00 AM ACAD O3 8 Good 34 37 PPB
2:00 AM ACC PM10 24 Good 6 6 µg/m3
2:00 AM ACC PM2.5 24 Good 14 2 µg/m3
2:00 AM ADB PM10 24 Good 19 21 µg/m3
2:00 AM ADB PM2.5 24 Good 23 4 µg/m3
2:00 AM ALA PM10 24 Good 9 10 µg/m3
2:00 AM ALA PM2.5 24 Good 19 3 µg/m3
2:00 AM ASPN O3 8 Good 32 35 PPB
2:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 17 3 µg/m3
2:00 AM AURE O3 8 Good 41 44 PPB
2:00 AM BHWK O3 8 Good 39 42 PPB
2:00 AM BOU PM10 24 Good 8 9 µg/m3
2:00 AM BOU PM2.5 24 Good 16 2 µg/m3
2:00 AM BOUR O3 8 Good 33 36 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 32 35 PPB
2:00 AM CAMP PM10 24 Good 6 7 µg/m3
2:00 AM CAMP PM2.5 24 Good 17 3 µg/m3
2:00 AM CAN PM10 24 Good 9 10 µg/m3
2:00 AM CAN PM2.5 24 Good 15 2 µg/m3
2:00 AM CASA CO 8 Good 1 0.1 PPM
2:00 AM CASA NO2 1 Good 14 15 PPB
2:00 AM CASA O3 8 Good 31 34 PPB
2:00 AM CASA PM10 24 Good 12 13 µg/m3
2:00 AM CASA PM2.5 24 Good 19 3 µg/m3
2:00 AM CCOL PM10 24 Good 10 11 µg/m3
2:00 AM CCOL PM2.5 24 Good 21 3 µg/m3
2:00 AM CHAT O3 8 Good 34 37 PPB
2:00 AM CHAT PM10 24 Good 6 7 µg/m3
2:00 AM CHAT PM2.5 24 Good 14 2 µg/m3
2:00 AM CTZ O3 8 Good 32 35 PPB
2:00 AM DELT PM10 24 Good 14 15 µg/m3
2:00 AM DELT PM2.5 24 Good 21 3 µg/m3
2:00 AM DELT PM2.5 24 Good 21 3 µg/m3
2:00 AM EVG O3 8 Good 36 39 PPB
2:00 AM FOS NO2 1 Good 3 3 PPB
2:00 AM FOS O3 8 Good 35 38 PPB
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM FTC O3 8 Good 39 42 PPB
2:00 AM FTCF PM10 24 Good 8 9 µg/m3
2:00 AM FTCF PM2.5 24 Good 28 5 µg/m3
2:00 AM FTCW O3 8 Good 37 40 PPB
2:00 AM GJPB PM10 24 Good 6 6 µg/m3
2:00 AM GJPB PM2.5 24 Good 16 2 µg/m3
2:00 AM GREH PM10 24 Good 6 7 µg/m3
2:00 AM GREH PM2.5 24 Good 27 4 µg/m3
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM GRET O3 8 Good 39 42 PPB
2:00 AM I25DEN CO 8 Good 2 0.2 PPM
2:00 AM I25DEN NO2 1 Good 34 36 PPB
2:00 AM I25DEN PM10 24 Good 17 18 µg/m3
2:00 AM I25DEN PM2.5 24 Good 21 3 µg/m3
2:00 AM I25GLO NO2 1 Good 18 19 PPB
2:00 AM I25GLO PM10 24 Good 24 26 µg/m3
2:00 AM I25GLO PM2.5 24 Good 24 4 µg/m3
2:00 AM LAST NO2 1 Good 4 4 PPB
2:00 AM LAST O3 8 Good 32 35 PPB
2:00 AM LMB PM10 24 Good 6 7 µg/m3
2:00 AM LMB PM2.5 24 Good 12 2 µg/m3
2:00 AM LNGM PM10 24 Good 10 11 µg/m3
2:00 AM LNGM PM2.5 24 Good 22 4 µg/m3
2:00 AM MAN O3 8 Good 44 47 PPB
2:00 AM MFP O3 8 Good 39 42 PPB
2:00 AM NJH PM10 24 Good 10 11 µg/m3
2:00 AM NJH PM2.5 24 Good 18 3 µg/m3
2:00 AM NREL O3 8 Good 40 43 PPB
2:00 AM PAG PM10 24 Good 9 10 µg/m3
2:00 AM PAG PM2.5 24 Good 13 2 µg/m3
2:00 AM PAL O3 8 Good 40 43 PPB
2:00 AM PFS PM10 24 Good 9 10 µg/m3
2:00 AM PFS PM2.5 24 Good 18 3 µg/m3
2:00 AM PMS PM2.5 24 Good 18 3 µg/m3
2:00 AM PWES O3 8 Good 35 38 PPB
2:00 AM RFN NO2 1 Good 2 2 PPB
2:00 AM RFN O3 8 Good 42 45 PPB
2:00 AM RIFL PM2.5 24 Good 11 2 µg/m3
2:00 AM RIFLO3 O3 8 Good 26 28 PPB
2:00 AM SSMB PM10 24 Good 11 12 µg/m3
2:00 AM SSMB PM2.5 24 Good 19 3 µg/m3
2:00 AM TEL PM10 24 Good 10 11 µg/m3
2:00 AM TEL PM2.5 24 Good 14 2 µg/m3
2:00 AM TIM NO2 1 Good 2 2 PPB
2:00 AM TIM O3 8 Good 38 41 PPB
2:00 AM TIM PM10 24 Good 8 9 µg/m3
2:00 AM TIM PM2.5 24 Good 27 4 µg/m3
2:00 AM WBY NO2 1 Good 7 7 PPB
2:00 AM WBY NO2 1 Good 7 7 PPB
2:00 AM WBY O3 8 Good 36 39 PPB
2:00 AM WBY PM10 24 Good 15 16 µg/m3
2:00 AM WBY PM2.5 24 Good 20 3 µg/m3
1:00 AM ACAD O3 8 Good 36 39 PPB
1:00 AM ACC PM10 24 Good 5 5 µg/m3
1:00 AM ACC PM2.5 24 Good 13 2 µg/m3
1:00 AM ADB PM10 24 Good 19 21 µg/m3
1:00 AM ADB PM2.5 24 Good 23 4 µg/m3
1:00 AM ALA PM10 24 Good 9 10 µg/m3
1:00 AM ALA PM2.5 24 Good 19 3 µg/m3
1:00 AM ASPN O3 8 Good 34 37 PPB
1:00 AM ASPN2 PM10 24 Good 13 14 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 17 3 µg/m3
1:00 AM AURE O3 8 Good 43 46 PPB
1:00 AM BHWK O3 8 Good 41 44 PPB
1:00 AM BOU PM10 24 Good 8 9 µg/m3
1:00 AM BOU PM2.5 24 Good 16 2 µg/m3
1:00 AM BOUR O3 8 Good 36 39 PPB
1:00 AM CAMP NO2 1 Good 12 13 PPB
1:00 AM CAMP NO2 1 Good 12 13 PPB
1:00 AM CAMP O3 8 Good 35 38 PPB
1:00 AM CAMP PM10 24 Good 6 7 µg/m3
1:00 AM CAMP PM2.5 24 Good 16 2 µg/m3
1:00 AM CAN PM10 24 Good 8 9 µg/m3
1:00 AM CAN PM2.5 24 Good 14 2 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 18 19 PPB
1:00 AM CASA O3 8 Good 35 38 PPB
1:00 AM CASA PM10 24 Good 11 12 µg/m3
1:00 AM CASA PM2.5 24 Good 19 3 µg/m3
1:00 AM CCOL PM10 24 Good 10 11 µg/m3
1:00 AM CCOL PM2.5 24 Good 22 3 µg/m3
1:00 AM CHAT O3 8 Good 36 39 PPB
1:00 AM CHAT PM10 24 Good 6 7 µg/m3
1:00 AM CHAT PM2.5 24 Good 14 2 µg/m3
1:00 AM CTZ O3 8 Good 36 39 PPB
1:00 AM DELT PM10 24 Good 14 15 µg/m3
1:00 AM DELT PM2.5 24 Good 20 3 µg/m3
1:00 AM DELT PM2.5 24 Good 20 3 µg/m3
1:00 AM EVG O3 8 Good 39 42 PPB
1:00 AM FOS NO2 1 Good 2 2 PPB
1:00 AM FOS O3 8 Good 37 40 PPB
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM FTC O3 8 Good 41 44 PPB
1:00 AM FTCF PM10 24 Good 8 9 µg/m3
1:00 AM FTCF PM2.5 24 Good 31 5 µg/m3
1:00 AM FTCW O3 8 Good 39 42 PPB
1:00 AM GJPB PM10 24 Good 6 6 µg/m3
1:00 AM GJPB PM2.5 24 Good 15 2 µg/m3
1:00 AM GREH PM10 24 Good 7 8 µg/m3
1:00 AM GREH PM2.5 24 Good 29 5 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 42 45 PPB
1:00 AM I25DEN CO 8 Good 2 0.2 PPM
1:00 AM I25DEN NO2 1 Good 25 26 PPB
1:00 AM I25DEN PM10 24 Good 16 17 µg/m3
1:00 AM I25DEN PM2.5 24 Good 21 3 µg/m3
1:00 AM I25GLO NO2 1 Good 16 17 PPB
1:00 AM I25GLO PM10 24 Good 24 26 µg/m3
1:00 AM I25GLO PM2.5 24 Good 24 4 µg/m3
1:00 AM LAST NO2 1 Good 6 6 PPB
1:00 AM LAST O3 8 Good 35 38 PPB
1:00 AM LMB PM10 24 Good 6 7 µg/m3
1:00 AM LMB PM2.5 24 Good 12 2 µg/m3
1:00 AM LNGM PM10 24 Good 10 11 µg/m3
1:00 AM LNGM PM2.5 24 Good 22 3 µg/m3
1:00 AM MAN O3 8 Good 45 49 PPB
1:00 AM MFP O3 8 Good 41 44 PPB
1:00 AM NJH PM10 24 Good 10 11 µg/m3
1:00 AM NJH PM2.5 24 Good 17 3 µg/m3
1:00 AM NREL O3 8 Good 42 45 PPB
1:00 AM PAG PM10 24 Good 9 10 µg/m3
1:00 AM PAG PM2.5 24 Good 12 2 µg/m3
1:00 AM PAL O3 8 Good 42 45 PPB
1:00 AM PFS PM10 24 Good 9 10 µg/m3
1:00 AM PFS PM2.5 24 Good 18 3 µg/m3
1:00 AM PMS PM2.5 24 Good 19 3 µg/m3
1:00 AM PWES O3 8 Good 36 39 PPB
1:00 AM RFN NO2 1 Good 1 1 PPB
1:00 AM RFN O3 8 Good 44 47 PPB
1:00 AM RIFL PM2.5 24 Good 11 1 µg/m3
1:00 AM RIFLO3 O3 8 Good 29 31 PPB
1:00 AM SSMB PM10 24 Good 11 12 µg/m3
1:00 AM SSMB PM2.5 24 Good 18 3 µg/m3
1:00 AM TEL PM10 24 Good 10 11 µg/m3
1:00 AM TEL PM2.5 24 Good 14 2 µg/m3
1:00 AM TIM NO2 1 Good 2 2 PPB
1:00 AM TIM O3 8 Good 40 43 PPB
1:00 AM TIM PM10 24 Good 9 10 µg/m3
1:00 AM TIM PM2.5 24 Good 28 5 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 Good 39 42 PPB
1:00 AM WBY PM10 24 Good 15 16 µg/m3
1:00 AM WBY PM2.5 24 Good 20 3 µg/m3

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