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AQI Calculations on 06/30/2026 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 44 48 PPB
2:00 AM ACC PM10 24 Good 21 23 µg/m3
2:00 AM ACC PM2.5 24 Good 32 5 µg/m3
2:00 AM ADB PM10 24 Good 39 42 µg/m3
2:00 AM ADB PM2.5 24 Good 42 7 µg/m3
2:00 AM ALA PM10 24 Moderate 60 73 µg/m3
2:00 AM ALA PM2.5 24 Good 34 6 µg/m3
2:00 AM ASPN O3 8 Good 41 44 PPB
2:00 AM ASPN2 PM10 24 Good 29 31 µg/m3
2:00 AM ASPN2 PM2.5 24 Moderate 56 11 µg/m3
2:00 AM AURE O3 8 Moderate 61 58 PPB
2:00 AM BHWK O3 8 Moderate 64 59 PPB
2:00 AM BOU PM10 24 Good 26 28 µg/m3
2:00 AM BOU PM2.5 24 Moderate 51 9 µg/m3
2:00 AM BOUR O3 8 Good 44 47 PPB
2:00 AM CAMP NO2 1 Good 27 29 PPB
2:00 AM CAMP NO2 1 Good 27 29 PPB
2:00 AM CAMP O3 8 Good 44 47 PPB
2:00 AM CAMP PM10 24 Good 18 19 µg/m3
2:00 AM CAMP PM2.5 24 Good 31 5 µg/m3
2:00 AM CAN PM10 24 Good 36 39 µg/m3
2:00 AM CAN PM2.5 24 Moderate 59 13 µg/m3
2:00 AM CASA CO 8 Good 1 0.1 PPM
2:00 AM CASA O3 8 Good 44 47 PPB
2:00 AM CASA PM10 24 Good 29 31 µg/m3
2:00 AM CASA PM2.5 24 Good 38 6 µg/m3
2:00 AM CCOL PM10 24 Good 29 31 µg/m3
2:00 AM CCOL PM2.5 24 Good 39 7 µg/m3
2:00 AM CHAT O3 8 Good 49 53 PPB
2:00 AM CHAT PM10 24 Good 25 27 µg/m3
2:00 AM CHAT PM2.5 24 Good 36 6 µg/m3
2:00 AM CTZ O3 8 Good 47 51 PPB
2:00 AM DELT PM10 24 Good 46 50 µg/m3
2:00 AM DELT PM2.5 24 Moderate 71 19 µg/m3
2:00 AM DELT PM2.5 24 Moderate 71 19 µg/m3
2:00 AM EVG O3 8 Moderate 54 56 PPB
2:00 AM FOS NO2 1 Good 4 4 PPB
2:00 AM FOS O3 8 Good 44 48 PPB
2:00 AM FTC CO 8 Good 0 0.0 PPM
2:00 AM FTC O3 8 Good 39 42 PPB
2:00 AM FTCF PM10 24 Good 21 23 µg/m3
2:00 AM FTCF PM2.5 24 Good 34 6 µg/m3
2:00 AM FTCW O3 8 Good 44 48 PPB
2:00 AM GJPB PM10 24 Good 12 13 µg/m3
2:00 AM GJPB PM2.5 24 Good 30 5 µg/m3
2:00 AM GREH PM10 24 Good 16 17 µg/m3
2:00 AM GREH PM2.5 24 Good 22 4 µg/m3
2:00 AM GRET CO 8 Good 0 0.0 PPM
2:00 AM GRET O3 8 Good 44 47 PPB
2:00 AM HLD O3 8 Moderate 51 55 PPB
2:00 AM I25DEN CO 8 Good 2 0.2 PPM
2:00 AM I25DEN NO2 1 Good 14 15 PPB
2:00 AM I25DEN PM10 24 Good 29 31 µg/m3
2:00 AM I25DEN PM2.5 24 Good 41 7 µg/m3
2:00 AM I25GLO NO2 1 Good 28 30 PPB
2:00 AM I25GLO PM10 24 Good 30 32 µg/m3
2:00 AM I25GLO PM2.5 24 Good 36 6 µg/m3
2:00 AM LAST NO2 1 Good 6 6 PPB
2:00 AM LAST O3 8 Good 40 43 PPB
2:00 AM LMB PM10 24 Good 18 19 µg/m3
2:00 AM LMB PM2.5 24 Good 22 4 µg/m3
2:00 AM LNGM PM10 24 Good 28 30 µg/m3
2:00 AM LNGM PM2.5 24 Good 44 7 µg/m3
2:00 AM MAN O3 8 Moderate 87 66 PPB
2:00 AM MFP NO2 1 Good 2 2 PPB
2:00 AM MFP O3 8 Good 46 50 PPB
2:00 AM NJH PM10 24 Good 23 25 µg/m3
2:00 AM NJH PM2.5 24 Good 35 6 µg/m3
2:00 AM NREL O3 8 Moderate 67 60 PPB
2:00 AM PAG PM10 24 Good 20 22 µg/m3
2:00 AM PAG PM2.5 24 Good 32 5 µg/m3
2:00 AM PAL O3 8 Good 40 43 PPB
2:00 AM PFS PM10 24 Moderate 58 69 µg/m3
2:00 AM PFS PM2.5 24 Moderate 96 33 µg/m3
2:00 AM PMS PM2.5 24 Good 38 6 µg/m3
2:00 AM PWES O3 8 Moderate 58 57 PPB
2:00 AM RFN O3 8 Moderate 71 61 PPB
2:00 AM RIFLO3 O3 8 Good 30 32 PPB
2:00 AM SSMB PM10 24 Good 9 10 µg/m3
2:00 AM SSMB PM2.5 24 Good 13 2 µg/m3
2:00 AM TEL PM10 24 Good 15 16 µg/m3
2:00 AM TEL PM2.5 24 Good 23 4 µg/m3
2:00 AM TIM NO2 1 Good 3 3 PPB
2:00 AM TIM O3 8 Good 40 43 PPB
2:00 AM TIM PM10 24 Good 19 21 µg/m3
2:00 AM TIM PM2.5 24 Good 31 5 µg/m3
2:00 AM WBY NO2 1 Good 8 8 PPB
2:00 AM WBY NO2 1 Good 8 8 PPB
2:00 AM WBY O3 8 Good 45 49 PPB
2:00 AM WBY PM10 24 Good 31 34 µg/m3
2:00 AM WBY PM2.5 24 Good 37 6 µg/m3
2:00 AM WBY SO2 1 Good 1 1 PPB
2:00 AM WBY SO2 1 Good 1 1 PPB
1:00 AM ACAD O3 8 Good 48 52 PPB
1:00 AM ACC PM10 24 Good 21 23 µg/m3
1:00 AM ACC PM2.5 24 Good 33 5 µg/m3
1:00 AM ADB PM10 24 Good 38 41 µg/m3
1:00 AM ADB PM2.5 24 Good 42 7 µg/m3
1:00 AM ALA PM10 24 Moderate 59 72 µg/m3
1:00 AM ALA PM2.5 24 Good 34 6 µg/m3
1:00 AM ASPN O3 8 Good 44 47 PPB
1:00 AM ASPN2 PM10 24 Good 29 31 µg/m3
1:00 AM ASPN2 PM2.5 24 Moderate 56 12 µg/m3
1:00 AM AURE O3 8 Moderate 67 60 PPB
1:00 AM BHWK O3 8 Moderate 71 61 PPB
1:00 AM BOU PM10 24 Good 26 28 µg/m3
1:00 AM BOU PM2.5 24 Moderate 52 9 µg/m3
1:00 AM BOUR O3 8 Good 46 50 PPB
1:00 AM CAMP NO2 1 Good 18 19 PPB
1:00 AM CAMP NO2 1 Good 18 19 PPB
1:00 AM CAMP O3 8 Good 49 53 PPB
1:00 AM CAMP PM10 24 Good 18 19 µg/m3
1:00 AM CAMP PM2.5 24 Good 31 5 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 36 39 µg/m3
1:00 AM CAN PM2.5 24 Moderate 58 13 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 9 10 PPB
1:00 AM CASA O3 8 Good 46 50 PPB
1:00 AM CASA PM10 24 Good 29 31 µg/m3
1:00 AM CASA PM2.5 24 Good 38 6 µg/m3
1:00 AM CCOL PM10 24 Good 29 31 µg/m3
1:00 AM CCOL PM2.5 24 Good 36 6 µg/m3
1:00 AM CHAT O3 8 Moderate 58 57 PPB
1:00 AM CHAT PM10 24 Good 25 27 µg/m3
1:00 AM CHAT PM2.5 24 Good 36 6 µg/m3
1:00 AM CTZ O3 8 Moderate 51 55 PPB
1:00 AM DELT PM10 24 Good 45 49 µg/m3
1:00 AM DELT PM2.5 24 Moderate 70 19 µg/m3
1:00 AM DELT PM2.5 24 Moderate 70 19 µg/m3
1:00 AM EVG O3 8 Moderate 74 62 PPB
1:00 AM FOS NO2 1 Good 3 3 PPB
1:00 AM FOS O3 8 Good 46 50 PPB
1:00 AM FTC CO 8 Good 0 0.0 PPM
1:00 AM FTC O3 8 Good 41 44 PPB
1:00 AM FTCF PM10 24 Good 21 23 µg/m3
1:00 AM FTCF PM2.5 24 Good 33 6 µg/m3
1:00 AM FTCW O3 8 Good 44 48 PPB
1:00 AM GJPB PM10 24 Good 11 12 µg/m3
1:00 AM GJPB PM2.5 24 Good 27 4 µg/m3
1:00 AM GREH PM10 24 Good 16 17 µg/m3
1:00 AM GREH PM2.5 24 Good 22 3 µg/m3
1:00 AM GRET CO 8 Good 0 0.0 PPM
1:00 AM GRET O3 8 Good 44 48 PPB
1:00 AM HLD O3 8 Moderate 61 58 PPB
1:00 AM I25DEN CO 8 Good 2 0.2 PPM
1:00 AM I25DEN NO2 1 Good 14 15 PPB
1:00 AM I25DEN PM10 24 Good 28 30 µg/m3
1:00 AM I25DEN PM2.5 24 Good 42 7 µg/m3
1:00 AM I25GLO NO2 1 Good 22 23 PPB
1:00 AM I25GLO PM10 24 Good 29 31 µg/m3
1:00 AM I25GLO PM2.5 24 Good 36 6 µg/m3
1:00 AM LAST NO2 1 Good 4 4 PPB
1:00 AM LAST O3 8 Good 44 47 PPB
1:00 AM LMB PM10 24 Good 17 18 µg/m3
1:00 AM LMB PM2.5 24 Good 22 4 µg/m3
1:00 AM LNGM PM10 24 Good 28 30 µg/m3
1:00 AM LNGM PM2.5 24 Good 44 8 µg/m3
1:00 AM MAN O3 8 Moderate 87 66 PPB
1:00 AM MFP NO2 1 Good 2 2 PPB
1:00 AM MFP O3 8 Good 47 51 PPB
1:00 AM NJH PM10 24 Good 23 25 µg/m3
1:00 AM NJH PM2.5 24 Good 36 6 µg/m3
1:00 AM NREL O3 8 Moderate 80 64 PPB
1:00 AM PAG PM10 24 Good 19 21 µg/m3
1:00 AM PAG PM2.5 24 Good 32 5 µg/m3
1:00 AM PAL O3 8 Good 42 45 PPB
1:00 AM PFS PM10 24 Moderate 58 69 µg/m3
1:00 AM PFS PM2.5 24 Moderate 96 33 µg/m3
1:00 AM PMS PM2.5 24 Good 38 6 µg/m3
1:00 AM PWES O3 8 Moderate 64 59 PPB
1:00 AM RFN NO2 1 Good 1 1 PPB
1:00 AM RFN O3 8 Moderate 77 63 PPB
1:00 AM RIFLO3 O3 8 Good 32 35 PPB
1:00 AM SSMB PM10 24 Good 9 10 µg/m3
1:00 AM SSMB PM2.5 24 Good 14 2 µg/m3
1:00 AM TEL PM10 24 Good 16 17 µg/m3
1:00 AM TEL PM2.5 24 Good 25 4 µg/m3
1:00 AM TIM NO2 1 Good 5 5 PPB
1:00 AM TIM O3 8 Good 42 45 PPB
1:00 AM TIM PM10 24 Good 19 21 µg/m3
1:00 AM TIM PM2.5 24 Good 30 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 50 54 PPB
1:00 AM WBY PM10 24 Good 31 34 µg/m3
1:00 AM WBY PM2.5 24 Good 37 6 µg/m3

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