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AQI Calculations on 07/03/2026 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 37 40 PPB
3:00 AM ACC PM10 24 Good 25 27 µg/m3
3:00 AM ACC PM2.5 24 Moderate 55 11 µg/m3
3:00 AM ADB PM10 24 Good 40 43 µg/m3
3:00 AM ADB PM2.5 24 Moderate 62 15 µg/m3
3:00 AM ALA PM10 24 Moderate 65 83 µg/m3
3:00 AM ALA PM2.5 24 Good 33 6 µg/m3
3:00 AM ASPN2 PM10 24 Moderate 56 66 µg/m3
3:00 AM ASPN2 PM2.5 24 Unhealthy for Sensitive Groups 107 38 µg/m3
3:00 AM AURE O3 8 Moderate 51 55 PPB
3:00 AM BHWK O3 8 Moderate 61 58 PPB
3:00 AM BOU PM10 24 Good 37 40 µg/m3
3:00 AM BOU PM2.5 24 Moderate 70 19 µg/m3
3:00 AM BOUR O3 8 Good 47 51 PPB
3:00 AM CAMP NO2 1 Good 7 7 PPB
3:00 AM CAMP NO2 1 Good 7 7 PPB
3:00 AM CAMP O3 8 Good 44 48 PPB
3:00 AM CAMP PM10 24 Good 19 20 µg/m3
3:00 AM CAMP PM2.5 24 Moderate 54 10 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 Moderate 51 56 µg/m3
3:00 AM CAN PM2.5 24 Moderate 81 25 µg/m3
3:00 AM CASA CO 8 Good 1 0.1 PPM
3:00 AM CASA NO2 1 Good 12 13 PPB
3:00 AM CASA O3 8 Good 40 43 PPB
3:00 AM CASA PM10 24 Good 32 35 µg/m3
3:00 AM CASA PM2.5 24 Moderate 60 13 µg/m3
3:00 AM CCOL PM10 24 Moderate 51 56 µg/m3
3:00 AM CCOL PM2.5 24 Moderate 73 20 µg/m3
3:00 AM CHAT O3 8 Good 46 50 PPB
3:00 AM CHAT PM10 24 Good 30 32 µg/m3
3:00 AM CHAT PM2.5 24 Moderate 58 13 µg/m3
3:00 AM CTZ O3 8 Good 33 36 PPB
3:00 AM DELT PM10 24 Moderate 73 99 µg/m3
3:00 AM DELT PM2.5 24 Unhealthy for Sensitive Groups 127 46 µg/m3
3:00 AM DELT PM2.5 24 Unhealthy for Sensitive Groups 127 46 µg/m3
3:00 AM EVG O3 8 Good 50 54 PPB
3:00 AM FOS NO2 1 Good 2 2 PPB
3:00 AM FOS O3 8 Good 41 44 PPB
3:00 AM FTC CO 8 Good 1 0.1 PPM
3:00 AM FTC O3 8 Good 43 46 PPB
3:00 AM FTCF PM10 24 Good 37 40 µg/m3
3:00 AM FTCF PM2.5 24 Moderate 65 16 µg/m3
3:00 AM FTCW O3 8 Good 46 50 PPB
3:00 AM GJPB PM10 24 Good 24 26 µg/m3
3:00 AM GJPB PM2.5 24 Moderate 69 18 µg/m3
3:00 AM GREH PM10 24 Good 26 28 µg/m3
3:00 AM GREH PM2.5 24 Moderate 56 11 µg/m3
3:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM GRET O3 8 Good 45 49 PPB
3:00 AM HLD O3 8 Good 49 53 PPB
3:00 AM I25DEN CO 8 Good 3 0.3 PPM
3:00 AM I25DEN NO2 1 Good 14 15 PPB
3:00 AM I25DEN PM10 24 Good 34 37 µg/m3
3:00 AM I25DEN PM2.5 24 Moderate 61 14 µg/m3
3:00 AM I25GLO NO2 1 Good 32 34 PPB
3:00 AM I25GLO PM10 24 Good 35 38 µg/m3
3:00 AM I25GLO PM2.5 24 Moderate 59 13 µg/m3
3:00 AM LAST NO2 1 Good 6 6 PPB
3:00 AM LAST O3 8 Good 44 47 PPB
3:00 AM LMB PM10 24 Good 28 30 µg/m3
3:00 AM LMB PM2.5 24 Good 43 7 µg/m3
3:00 AM LNGM PM10 24 Good 35 38 µg/m3
3:00 AM LNGM PM2.5 24 Moderate 64 15 µg/m3
3:00 AM MAN O3 8 Moderate 58 57 PPB
3:00 AM MFP NO2 1 Good 1 1 PPB
3:00 AM MFP O3 8 Good 45 49 PPB
3:00 AM NJH PM10 24 Good 31 33 µg/m3
3:00 AM NJH PM2.5 24 Moderate 61 14 µg/m3
3:00 AM NREL O3 8 Moderate 74 62 PPB
3:00 AM PAG PM10 24 Good 13 14 µg/m3
3:00 AM PAG PM2.5 24 Good 13 2 µg/m3
3:00 AM PAL O3 8 Good 46 50 PPB
3:00 AM PFS PM10 24 Good 33 36 µg/m3
3:00 AM PFS PM2.5 24 Moderate 54 10 µg/m3
3:00 AM PMS PM2.5 24 Moderate 60 13 µg/m3
3:00 AM PWES O3 8 Good 34 37 PPB
3:00 AM RFN O3 8 Moderate 84 65 PPB
3:00 AM RIFLO3 O3 8 Good 31 33 PPB
3:00 AM SSMB PM10 24 Good 41 44 µg/m3
3:00 AM SSMB PM2.5 24 Moderate 80 24 µg/m3
3:00 AM TEL PM10 24 Good 14 15 µg/m3
3:00 AM TEL PM2.5 24 Good 25 4 µg/m3
3:00 AM TIM NO2 1 Good 2 2 PPB
3:00 AM TIM O3 8 Good 37 40 PPB
3:00 AM TIM PM10 24 Good 31 33 µg/m3
3:00 AM TIM PM2.5 24 Moderate 61 14 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 44 48 PPB
3:00 AM WBY PM10 24 Good 34 37 µg/m3
3:00 AM WBY PM2.5 24 Moderate 59 13 µg/m3
3:00 AM WBY SO2 1 Good 1 1 PPB
3:00 AM WBY SO2 1 Good 1 1 PPB
2:00 AM ACAD O3 8 Good 39 42 PPB
2:00 AM ACC PM10 24 Good 25 27 µg/m3
2:00 AM ACC PM2.5 24 Moderate 55 11 µg/m3
2:00 AM ADB PM10 24 Good 40 43 µg/m3
2:00 AM ADB PM2.5 24 Moderate 62 14 µg/m3
2:00 AM ALA PM10 24 Moderate 65 83 µg/m3
2:00 AM ALA PM2.5 24 Good 33 6 µg/m3
2:00 AM ASPN2 PM10 24 Moderate 57 67 µg/m3
2:00 AM ASPN2 PM2.5 24 Unhealthy for Sensitive Groups 110 39 µg/m3
2:00 AM AURE O3 8 Moderate 54 56 PPB
2:00 AM BHWK O3 8 Moderate 67 60 PPB
2:00 AM BOU PM10 24 Good 36 39 µg/m3
2:00 AM BOU PM2.5 24 Moderate 69 18 µg/m3
2:00 AM BOUR O3 8 Good 50 54 PPB
2:00 AM CAMP NO2 1 Good 8 9 PPB
2:00 AM CAMP NO2 1 Good 8 9 PPB
2:00 AM CAMP O3 8 Good 46 50 PPB
2:00 AM CAMP PM10 24 Good 19 20 µg/m3
2:00 AM CAMP PM2.5 24 Moderate 53 10 µg/m3
2:00 AM CAN PM10 24 Good 49 53 µg/m3
2:00 AM CAN PM2.5 24 Moderate 77 23 µg/m3
2:00 AM CASA CO 8 Good 1 0.1 PPM
2:00 AM CASA NO2 1 Good 8 8 PPB
2:00 AM CASA O3 8 Good 44 47 PPB
2:00 AM CASA PM10 24 Good 33 36 µg/m3
2:00 AM CASA PM2.5 24 Moderate 60 13 µg/m3
2:00 AM CCOL PM10 24 Moderate 52 57 µg/m3
2:00 AM CCOL PM2.5 24 Moderate 73 20 µg/m3
2:00 AM CHAT O3 8 Good 48 52 PPB
2:00 AM CHAT PM10 24 Good 30 32 µg/m3
2:00 AM CHAT PM2.5 24 Moderate 58 13 µg/m3
2:00 AM CTZ O3 8 Good 37 40 PPB
2:00 AM DELT PM10 24 Moderate 73 100 µg/m3
2:00 AM DELT PM2.5 24 Unhealthy for Sensitive Groups 128 46 µg/m3
2:00 AM DELT PM2.5 24 Unhealthy for Sensitive Groups 128 46 µg/m3
2:00 AM EVG O3 8 Moderate 58 57 PPB
2:00 AM FOS NO2 1 Good 4 4 PPB
2:00 AM FOS O3 8 Good 44 47 PPB
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM FTC O3 8 Good 44 47 PPB
2:00 AM FTCF PM10 24 Good 37 40 µg/m3
2:00 AM FTCF PM2.5 24 Moderate 66 16 µg/m3
2:00 AM FTCW O3 8 Good 48 52 PPB
2:00 AM GJPB PM10 24 Good 24 26 µg/m3
2:00 AM GJPB PM2.5 24 Moderate 69 18 µg/m3
2:00 AM GREH PM10 24 Good 26 28 µg/m3
2:00 AM GREH PM2.5 24 Moderate 56 11 µg/m3
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM GRET O3 8 Good 48 52 PPB
2:00 AM HLD O3 8 Good 50 54 PPB
2:00 AM I25DEN CO 8 Good 3 0.3 PPM
2:00 AM I25DEN NO2 1 Good 16 17 PPB
2:00 AM I25DEN PM10 24 Good 35 38 µg/m3
2:00 AM I25DEN PM2.5 24 Moderate 61 14 µg/m3
2:00 AM I25GLO NO2 1 Good 27 29 PPB
2:00 AM I25GLO PM10 24 Good 35 38 µg/m3
2:00 AM I25GLO PM2.5 24 Moderate 58 13 µg/m3
2:00 AM LAST NO2 1 Good 5 5 PPB
2:00 AM LAST O3 8 Good 47 51 PPB
2:00 AM LMB PM10 24 Good 27 29 µg/m3
2:00 AM LMB PM2.5 24 Good 42 7 µg/m3
2:00 AM LNGM PM10 24 Good 35 38 µg/m3
2:00 AM LNGM PM2.5 24 Moderate 64 16 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 46 50 PPB
2:00 AM NJH PM10 24 Good 31 33 µg/m3
2:00 AM NJH PM2.5 24 Moderate 61 14 µg/m3
2:00 AM NREL O3 8 Moderate 80 64 PPB
2:00 AM PAG PM10 24 Good 13 14 µg/m3
2:00 AM PAG PM2.5 24 Good 12 2 µg/m3
2:00 AM PAL O3 8 Good 48 52 PPB
2:00 AM PFS PM10 24 Good 32 35 µg/m3
2:00 AM PFS PM2.5 24 Moderate 54 10 µg/m3
2:00 AM PMS PM2.5 24 Moderate 60 13 µg/m3
2:00 AM PWES O3 8 Good 36 39 PPB
2:00 AM RFN O3 8 Moderate 90 67 PPB
2:00 AM RIFLO3 O3 8 Good 34 37 PPB
2:00 AM SSMB PM10 24 Good 41 44 µg/m3
2:00 AM SSMB PM2.5 24 Moderate 80 24 µg/m3
2:00 AM TEL PM10 24 Good 14 15 µg/m3
2:00 AM TEL PM2.5 24 Good 25 4 µg/m3
2:00 AM TIM NO2 1 Good 5 5 PPB
2:00 AM TIM O3 8 Good 40 43 PPB
2:00 AM TIM PM10 24 Good 31 33 µg/m3
2:00 AM TIM PM2.5 24 Moderate 61 14 µg/m3
2:00 AM WBY NO2 1 Good 16 17 PPB
2:00 AM WBY NO2 1 Good 16 17 PPB
2:00 AM WBY O3 8 Good 47 51 PPB
2:00 AM WBY PM10 24 Good 34 37 µg/m3
2:00 AM WBY PM2.5 24 Moderate 59 13 µg/m3
1:00 AM ACAD O3 8 Good 43 46 PPB
1:00 AM ACC PM10 24 Good 25 27 µg/m3
1:00 AM ACC PM2.5 24 Moderate 55 11 µg/m3
1:00 AM ADB PM10 24 Good 41 44 µg/m3
1:00 AM ADB PM2.5 24 Moderate 62 14 µg/m3
1:00 AM ALA PM10 24 Moderate 65 84 µg/m3
1:00 AM ALA PM2.5 24 Good 33 6 µg/m3
1:00 AM ASPN2 PM10 24 Moderate 57 68 µg/m3
1:00 AM ASPN2 PM2.5 24 Unhealthy for Sensitive Groups 111 39 µg/m3
1:00 AM AURE O3 8 Moderate 58 57 PPB
1:00 AM BHWK O3 8 Moderate 74 62 PPB
1:00 AM BOU PM10 24 Good 36 39 µg/m3
1:00 AM BOU PM2.5 24 Moderate 67 17 µg/m3
1:00 AM BOUR O3 8 Moderate 58 57 PPB
1:00 AM CAMP NO2 1 Good 7 7 PPB
1:00 AM CAMP NO2 1 Good 7 7 PPB
1:00 AM CAMP O3 8 Good 49 53 PPB
1:00 AM CAMP PM10 24 Good 19 21 µg/m3
1:00 AM CAMP PM2.5 24 Moderate 54 10 µg/m3
1:00 AM CAN PM10 24 Good 46 50 µg/m3
1:00 AM CAN PM2.5 24 Moderate 73 20 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 8 9 PPB
1:00 AM CASA O3 8 Good 46 50 PPB
1:00 AM CASA PM10 24 Good 34 37 µg/m3
1:00 AM CASA PM2.5 24 Moderate 60 14 µg/m3
1:00 AM CCOL PM10 24 Moderate 52 58 µg/m3
1:00 AM CCOL PM2.5 24 Moderate 73 21 µg/m3
1:00 AM CHAT O3 8 Good 50 54 PPB
1:00 AM CHAT PM10 24 Good 31 33 µg/m3
1:00 AM CHAT PM2.5 24 Moderate 58 13 µg/m3
1:00 AM CTZ O3 8 Good 40 43 PPB
1:00 AM DELT PM10 24 Moderate 74 102 µg/m3
1:00 AM DELT PM2.5 24 Unhealthy for Sensitive Groups 133 48 µg/m3
1:00 AM DELT PM2.5 24 Unhealthy for Sensitive Groups 133 48 µg/m3
1:00 AM EVG O3 8 Moderate 71 61 PPB
1:00 AM FOS NO2 1 Good 5 5 PPB
1:00 AM FOS O3 8 Good 47 51 PPB
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM FTC O3 8 Good 45 49 PPB
1:00 AM FTCF PM10 24 Good 37 40 µg/m3
1:00 AM FTCF PM2.5 24 Moderate 66 17 µg/m3
1:00 AM FTCW O3 8 Moderate 51 55 PPB
1:00 AM GJPB PM10 24 Good 23 25 µg/m3
1:00 AM GJPB PM2.5 24 Moderate 68 18 µg/m3
1:00 AM GREH PM10 24 Good 26 28 µg/m3
1:00 AM GREH PM2.5 24 Moderate 56 12 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Moderate 51 55 PPB
1:00 AM HLD O3 8 Moderate 51 55 PPB
1:00 AM I25DEN CO 8 Good 3 0.3 PPM
1:00 AM I25DEN NO2 1 Good 17 18 PPB
1:00 AM I25DEN PM10 24 Good 35 38 µg/m3
1:00 AM I25DEN PM2.5 24 Moderate 61 14 µg/m3
1:00 AM I25GLO NO2 1 Good 24 25 PPB
1:00 AM I25GLO PM10 24 Good 35 38 µg/m3
1:00 AM I25GLO PM2.5 24 Moderate 58 13 µg/m3
1:00 AM LAST NO2 1 Good 3 3 PPB
1:00 AM LAST O3 8 Good 50 54 PPB
1:00 AM LMB PM10 24 Good 26 28 µg/m3
1:00 AM LMB PM2.5 24 Good 41 7 µg/m3
1:00 AM LNGM PM10 24 Good 36 39 µg/m3
1:00 AM LNGM PM2.5 24 Moderate 64 16 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 Good 49 53 PPB
1:00 AM NJH PM10 24 Good 31 33 µg/m3
1:00 AM NJH PM2.5 24 Moderate 61 14 µg/m3
1:00 AM NREL O3 8 Moderate 87 66 PPB
1:00 AM PAG PM10 24 Good 13 14 µg/m3
1:00 AM PAG PM2.5 24 Good 12 2 µg/m3
1:00 AM PAL O3 8 Moderate 51 55 PPB
1:00 AM PFS PM10 24 Good 31 34 µg/m3
1:00 AM PFS PM2.5 24 Moderate 53 10 µg/m3
1:00 AM PMS PM2.5 24 Moderate 60 13 µg/m3
1:00 AM PWES O3 8 Good 40 43 PPB
1:00 AM RFN O3 8 Moderate 100 70 PPB
1:00 AM RIFLO3 O3 8 Good 37 40 PPB
1:00 AM SSMB PM10 24 Good 41 44 µg/m3
1:00 AM SSMB PM2.5 24 Moderate 79 24 µg/m3
1:00 AM TEL PM10 24 Good 14 15 µg/m3
1:00 AM TEL PM2.5 24 Good 24 4 µg/m3
1:00 AM TIM NO2 1 Good 4 4 PPB
1:00 AM TIM O3 8 Good 44 48 PPB
1:00 AM TIM PM10 24 Good 31 33 µg/m3
1:00 AM TIM PM2.5 24 Moderate 62 14 µg/m3
1:00 AM WBY NO2 1 Good 8 8 PPB
1:00 AM WBY NO2 1 Good 8 8 PPB
1:00 AM WBY O3 8 Moderate 51 55 PPB
1:00 AM WBY PM10 24 Good 35 38 µg/m3
1:00 AM WBY PM2.5 24 Moderate 59 13 µg/m3

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