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AQI Calculations on 04/25/2024 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.

Click on the column headings to sort data.

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 ASPN2 PM2.5 24 Good 1 0 µg/m3
3:00 AM FTC CO 8 Good 1 0.1 PPM
3:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM RFN NO2 1 Good 1 1 PPB
2:00 AM ASPN2 PM2.5 24 Good 1 0 µg/m3
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM RFN NO2 1 Good 1 1 PPB
1:00 AM ASPN2 PM2.5 24 Good 1 0 µg/m3
1:00 AM CCOL CO 8 Good 1 0.1 PPM
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM CASA CO 8 Good 2 0.2 PPM
3:00 AM CCOL CO 8 Good 2 0.2 PPM
2:00 AM CASA CO 8 Good 2 0.2 PPM
2:00 AM CCOL CO 8 Good 2 0.2 PPM
1:00 AM CASA CO 8 Good 2 0.2 PPM
1:00 AM RFN NO2 1 Good 2 2 PPB
3:00 AM I25DEN CO 8 Good 3 0.3 PPM
3:00 AM LAST NO2 1 Good 3 3 PPB
3:00 AM WBY NO2 1 Good 3 3 PPB
3:00 AM WBY NO2 1 Good 3 3 PPB
2:00 AM CASA NO2 1 Good 3 3 PPB
2:00 AM I25DEN CO 8 Good 3 0.3 PPM
2:00 AM WBY NO2 1 Good 4 4 PPB
2:00 AM WBY NO2 1 Good 4 4 PPB
1:00 AM WBY NO2 1 Good 4 4 PPB
1:00 AM WBY NO2 1 Good 4 4 PPB
3:00 AM CASA NO2 1 Good 5 5 PPB
2:00 AM LAST NO2 1 Good 5 5 PPB
1:00 AM I25DEN CO 8 Good 5 0.4 PPM
1:00 AM LAST NO2 1 Good 6 6 PPB
3:00 AM I25DEN NO2 1 Good 7 7 PPB
3:00 AM I25GLO NO2 1 Good 8 9 PPB
2:00 AM I25DEN NO2 1 Good 8 9 PPB
1:00 AM CASA NO2 1 Good 8 8 PPB
2:00 AM CAMP NO2 1 Good 10 11 PPB
2:00 AM CAMP NO2 1 Good 10 11 PPB
3:00 AM CAMP NO2 1 Good 11 12 PPB
3:00 AM CAMP NO2 1 Good 11 12 PPB
3:00 AM SSMB PM10 24 Good 11 12 µg/m3
2:00 AM I25GLO NO2 1 Good 11 12 PPB
2:00 AM SSMB PM10 24 Good 11 12 µg/m3
1:00 AM CASA PM10 24 Good 11 12 µg/m3
1:00 AM SSMB PM10 24 Good 11 12 µg/m3
3:00 AM CASA PM10 24 Good 12 13 µg/m3
2:00 AM CASA PM10 24 Good 12 13 µg/m3
1:00 AM CAMP NO2 1 Good 12 13 PPB
1:00 AM CAMP NO2 1 Good 12 13 PPB
3:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
2:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
1:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
3:00 AM ALA PM2.5 24 Good 15 4 µg/m3
3:00 AM GJPB PM10 24 Good 15 16 µg/m3
3:00 AM GJPB PM2.5 24 Good 15 4 µg/m3
2:00 AM ALA PM2.5 24 Good 15 4 µg/m3
2:00 AM GJPB PM10 24 Good 15 16 µg/m3
2:00 AM GJPB PM2.5 24 Good 15 4 µg/m3
1:00 AM ALA PM2.5 24 Good 15 4 µg/m3
1:00 AM GJPB PM10 24 Good 15 16 µg/m3
1:00 AM GJPB PM2.5 24 Good 15 4 µg/m3
2:00 AM FTCF PM10 24 Good 16 17 µg/m3
1:00 AM FTCF PM10 24 Good 16 17 µg/m3
3:00 AM FTCF PM10 24 Good 17 18 µg/m3
2:00 AM CAMP PM10 24 Good 17 18 µg/m3
1:00 AM CAMP PM10 24 Good 17 18 µg/m3
3:00 AM CAMP PM10 24 Good 18 19 µg/m3
3:00 AM GREH PM10 24 Good 18 19 µg/m3
3:00 AM TEL PM10 24 Good 18 19 µg/m3
2:00 AM GREH PM10 24 Good 18 19 µg/m3
2:00 AM TEL PM10 24 Good 18 19 µg/m3
1:00 AM GREH PM10 24 Good 18 19 µg/m3
1:00 AM I25GLO NO2 1 Good 18 19 PPB
1:00 AM TEL PM10 24 Good 18 19 µg/m3
3:00 AM I25DEN PM10 24 Good 19 21 µg/m3
2:00 AM I25DEN PM10 24 Good 19 21 µg/m3
1:00 AM I25DEN PM10 24 Good 19 20 µg/m3
3:00 AM ALA PM10 24 Good 21 23 µg/m3
3:00 AM CHAT PM10 24 Good 21 23 µg/m3
3:00 AM CHAT PM2.5 24 Good 21 5 µg/m3
2:00 AM ALA PM10 24 Good 21 23 µg/m3
2:00 AM CHAT PM10 24 Good 21 23 µg/m3
2:00 AM CHAT PM2.5 24 Good 21 5 µg/m3
1:00 AM ALA PM10 24 Good 21 23 µg/m3
1:00 AM CHAT PM10 24 Good 21 23 µg/m3
1:00 AM CHAT PM2.5 24 Good 21 5 µg/m3
3:00 AM CASA PM2.5 24 Good 22 5 µg/m3
3:00 AM NJH PM2.5 24 Good 22 5 µg/m3
2:00 AM CASA PM2.5 24 Good 22 5 µg/m3
2:00 AM NJH PM2.5 24 Good 22 5 µg/m3
1:00 AM CASA PM2.5 24 Good 22 5 µg/m3
1:00 AM NJH PM2.5 24 Good 22 5 µg/m3
1:00 AM PFS PM2.5 24 Good 22 5 µg/m3
3:00 AM PFS PM2.5 24 Good 23 6 µg/m3
2:00 AM PFS PM2.5 24 Good 23 6 µg/m3
1:00 AM BOU PM10 24 Good 23 25 µg/m3
1:00 AM I25DEN NO2 1 Good 23 24 PPB
3:00 AM BOU PM10 24 Good 24 26 µg/m3
2:00 AM BOU PM10 24 Good 24 26 µg/m3
3:00 AM LAST O3 8 Good 25 27 PPB
2:00 AM FTCF PM2.5 24 Good 25 6 µg/m3
1:00 AM FTCF PM2.5 24 Good 25 6 µg/m3
1:00 AM LNGM PM10 24 Good 25 27 µg/m3
3:00 AM FTCF PM2.5 24 Good 26 6 µg/m3
2:00 AM LNGM PM10 24 Good 26 28 µg/m3
2:00 AM PAG PM10 24 Good 26 28 µg/m3
1:00 AM GREH PM2.5 24 Good 26 6 µg/m3
1:00 AM LMB PM2.5 24 Good 26 6 µg/m3
1:00 AM PAG PM10 24 Good 26 28 µg/m3
3:00 AM ADB PM2.5 24 Good 27 7 µg/m3
3:00 AM CAMP PM2.5 24 Good 27 7 µg/m3
3:00 AM LMB PM2.5 24 Good 27 7 µg/m3
3:00 AM LNGM PM10 24 Good 27 29 µg/m3
3:00 AM PAG PM10 24 Good 27 29 µg/m3
2:00 AM ADB PM2.5 24 Good 27 7 µg/m3
2:00 AM CAMP PM2.5 24 Good 27 6 µg/m3
2:00 AM CAN PM10 24 Good 27 29 µg/m3
2:00 AM GREH PM2.5 24 Good 27 7 µg/m3
2:00 AM LMB PM2.5 24 Good 27 6 µg/m3
1:00 AM ADB PM2.5 24 Good 27 6 µg/m3
1:00 AM CAMP PM2.5 24 Good 27 6 µg/m3
1:00 AM NJH PM10 24 Good 27 29 µg/m3
3:00 AM ACAD O3 8 Good 28 30 PPB
3:00 AM CAN PM10 24 Good 28 30 µg/m3
3:00 AM GREH PM2.5 24 Good 28 7 µg/m3
3:00 AM LMB PM10 24 Good 28 30 µg/m3
3:00 AM NJH PM10 24 Good 28 30 µg/m3
3:00 AM RIFLO3 O3 8 Good 28 30 PPB
2:00 AM BOU PM2.5 24 Good 28 7 µg/m3
2:00 AM LAST O3 8 Good 28 30 PPB
2:00 AM LMB PM10 24 Good 28 30 µg/m3
2:00 AM NJH PM10 24 Good 28 30 µg/m3
1:00 AM BOU PM2.5 24 Good 28 7 µg/m3
1:00 AM CAN PM10 24 Good 28 30 µg/m3
1:00 AM LMB PM10 24 Good 28 30 µg/m3
3:00 AM BOU PM2.5 24 Good 29 7 µg/m3
2:00 AM PFS PM10 24 Good 29 31 µg/m3
1:00 AM PFS PM10 24 Good 29 31 µg/m3
3:00 AM GRET O3 8 Good 30 32 PPB
3:00 AM PFS PM10 24 Good 30 32 µg/m3
3:00 AM I25GLO PM10 24 Good 31 33 µg/m3
2:00 AM ACAD O3 8 Good 31 33 PPB
2:00 AM I25GLO PM10 24 Good 31 33 µg/m3
2:00 AM RIFLO3 O3 8 Good 31 33 PPB
2:00 AM WBY PM10 24 Good 31 34 µg/m3
1:00 AM I25GLO PM10 24 Good 31 33 µg/m3
1:00 AM WBY PM10 24 Good 31 34 µg/m3
3:00 AM BOUR O3 8 Good 32 35 PPB
3:00 AM WBY PM10 24 Good 32 35 µg/m3
2:00 AM GRET O3 8 Good 32 35 PPB
2:00 AM LNGM PM2.5 24 Good 32 8 µg/m3
1:00 AM ACAD O3 8 Good 32 35 PPB
1:00 AM CCOL PM2.5 24 Good 32 8 µg/m3
1:00 AM LAST O3 8 Good 32 35 PPB
1:00 AM LNGM PM2.5 24 Good 32 8 µg/m3
3:00 AM CAMP O3 8 Good 33 36 PPB
3:00 AM LNGM PM2.5 24 Good 33 8 µg/m3
3:00 AM PWES O3 8 Good 33 36 PPB
1:00 AM RIFLO3 O3 8 Good 33 36 PPB
3:00 AM AURE O3 8 Good 34 37 PPB
3:00 AM I25DEN PM2.5 24 Good 34 8 µg/m3
3:00 AM I25GLO PM2.5 24 Good 34 8 µg/m3
2:00 AM CCOL PM2.5 24 Good 34 8 µg/m3
2:00 AM I25DEN PM2.5 24 Good 34 8 µg/m3
2:00 AM I25GLO PM2.5 24 Good 34 8 µg/m3
1:00 AM ADB PM10 24 Good 34 37 µg/m3
1:00 AM I25DEN PM2.5 24 Good 34 8 µg/m3
1:00 AM I25GLO PM2.5 24 Good 34 8 µg/m3
3:00 AM FTC O3 8 Good 35 38 PPB
3:00 AM FTCW O3 8 Good 35 38 PPB
3:00 AM HLD O3 8 Good 35 38 PPB
2:00 AM ADB PM10 24 Good 35 38 µg/m3
2:00 AM BOUR O3 8 Good 35 38 PPB
2:00 AM PWES O3 8 Good 35 38 PPB
1:00 AM GRET O3 8 Good 35 38 PPB
3:00 AM ADB PM10 24 Good 36 39 µg/m3
3:00 AM CCOL PM2.5 24 Good 36 9 µg/m3
2:00 AM CAMP O3 8 Good 36 39 PPB
2:00 AM AURE O3 8 Good 37 40 PPB
2:00 AM FTC O3 8 Good 37 40 PPB
2:00 AM FTCW O3 8 Good 37 40 PPB
3:00 AM EVG O3 8 Good 38 41 PPB
2:00 AM HLD O3 8 Good 38 41 PPB
1:00 AM BOUR O3 8 Good 38 41 PPB
1:00 AM PWES O3 8 Good 38 41 PPB
3:00 AM MAN O3 8 Good 39 42 PPB
1:00 AM AURE O3 8 Good 39 42 PPB
3:00 AM CASA O3 8 Good 40 43 PPB
2:00 AM EVG O3 8 Good 40 43 PPB
2:00 AM MAN O3 8 Good 40 43 PPB
1:00 AM CAMP O3 8 Good 40 43 PPB
1:00 AM FTC O3 8 Good 40 43 PPB
1:00 AM FTCW O3 8 Good 40 43 PPB
1:00 AM HLD O3 8 Good 40 43 PPB
3:00 AM WBY O3 8 Good 42 45 PPB
3:00 AM CHAT O3 8 Good 43 46 PPB
2:00 AM CASA O3 8 Good 43 46 PPB
1:00 AM EVG O3 8 Good 43 46 PPB
1:00 AM MAN O3 8 Good 43 46 PPB
3:00 AM ASPN O3 8 Good 44 47 PPB
3:00 AM CTZ O3 8 Good 44 48 PPB
3:00 AM NREL O3 8 Good 44 48 PPB
2:00 AM ASPN O3 8 Good 44 47 PPB
2:00 AM CTZ O3 8 Good 44 48 PPB
2:00 AM WBY O3 8 Good 44 48 PPB
1:00 AM ASPN O3 8 Good 44 48 PPB
3:00 AM PAL O3 8 Good 45 49 PPB
2:00 AM CHAT O3 8 Good 45 49 PPB
1:00 AM CASA O3 8 Good 45 49 PPB
1:00 AM CTZ O3 8 Good 45 49 PPB
3:00 AM RFN O3 8 Good 46 50 PPB
2:00 AM PAL O3 8 Good 46 50 PPB
1:00 AM PAL O3 8 Good 46 50 PPB
2:00 AM NREL O3 8 Good 47 51 PPB
1:00 AM CHAT O3 8 Good 48 52 PPB
1:00 AM WBY O3 8 Good 48 52 PPB
2:00 AM RFN O3 8 Good 49 53 PPB
3:00 AM BHWK O3 8 Good 50 54 PPB
2:00 AM BHWK O3 8 Moderate 51 55 PPB
1:00 AM NREL O3 8 Moderate 51 55 PPB
1:00 AM BHWK O3 8 Moderate 54 56 PPB
1:00 AM RFN O3 8 Moderate 54 56 PPB

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