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AQI Calculations on 04/23/2024 1:00AM - 4:00AM

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

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