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AQI Calculations on 08/08/2020 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.


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.
4:00 AM ACAD O3 8 Good 34 37 PPB
4:00 AM ADM PM10 24 Good 18 19 µg/m3
4:00 AM ADM PM2.5 24 Good 20 5 µg/m3
4:00 AM ASPN O3 8 Good 36 39 PPB
4:00 AM ASPN2 PM10 24 Good 27 29 µg/m3
4:00 AM AURE O3 8 Good 36 39 PPB
4:00 AM BHWK O3 8 Good 46 50 PPB
4:00 AM BOUR O3 8 Good 40 43 PPB
4:00 AM CAMP CO 8 Good 2 0.2 PPM
4:00 AM CAMP NO2 1 Good 8 9 PPB
4:00 AM CAMP NO2 1 Good 8 9 PPB
4:00 AM CAMP O3 8 Good 27 29 PPB
4:00 AM CAMP PM10 24 Good 11 12 µg/m3
4:00 AM CAMP PM2.5 24 Good 20 5 µg/m3
4:00 AM CASA CO 8 Good 2 0.2 PPM
4:00 AM CASA NO2 1 Good 18 19 PPB
4:00 AM CASA O3 8 Good 22 24 PPB
4:00 AM CASA PM10 24 Good 21 23 µg/m3
4:00 AM CASA PM2.5 24 Good 23 6 µg/m3
4:00 AM CCOL PM10 24 Good 12 13 µg/m3
4:00 AM CCOL PM2.5 24 Good 18 4 µg/m3
4:00 AM CHAT O3 8 Good 29 31 PPB
4:00 AM CHAT PM10 24 Good 18 19 µg/m3
4:00 AM CHAT PM2.5 24 Good 21 5 µg/m3
4:00 AM CTZ O3 8 Good 19 21 PPB
4:00 AM FTC CO 8 Good 2 0.2 PPM
4:00 AM FTC O3 8 Good 25 27 PPB
4:00 AM FTCF PM10 24 Good 18 19 µg/m3
4:00 AM FTCF PM2.5 24 Good 33 8 µg/m3
4:00 AM FTCW O3 8 Good 44 47 PPB
4:00 AM GJPB PM10 24 Good 15 16 µg/m3
4:00 AM GJPB PM2.5 24 Good 14 3 µg/m3
4:00 AM GREH PM10 24 Good 26 28 µg/m3
4:00 AM GREH PM2.5 24 Good 32 8 µg/m3
4:00 AM GRET CO 8 Good 1 0.1 PPM
4:00 AM GRET O3 8 Good 30 32 PPB
4:00 AM H24 CO 8 Good 2 0.2 PPM
4:00 AM HLD O3 8 Good 36 39 PPB
4:00 AM I25DEN CO 8 Good 5 0.4 PPM
4:00 AM I25DEN NO2 1 Good 25 27 PPB
4:00 AM I25DEN PM10 24 Good 21 23 µg/m3
4:00 AM I25DEN PM2.5 24 Good 22 5 µg/m3
4:00 AM I25GLO NO2 1 Good 24 25 PPB
4:00 AM I25GLO PM10 24 Good 20 22 µg/m3
4:00 AM I25GLO PM2.5 24 Good 23 6 µg/m3
4:00 AM LNGM PM10 24 Good 19 21 µg/m3
4:00 AM LNGM PM2.5 24 Good 25 6 µg/m3
4:00 AM MAN O3 8 Good 40 43 PPB
4:00 AM NJH PM10 24 Good 19 21 µg/m3
4:00 AM NJH PM2.5 24 Good 25 6 µg/m3
4:00 AM NREL O3 8 Good 48 52 PPB
4:00 AM PAL O3 8 Good 46 50 PPB
4:00 AM PAO NO2 1 Good 7 7 PPB
4:00 AM PAO O3 8 Good 31 34 PPB
4:00 AM RFN O3 8 Good 50 54 PPB
4:00 AM RIFLO3 O3 8 Good 31 34 PPB
4:00 AM SWAN PM2.5 24 Good 30 7 µg/m3
4:00 AM WBY CO 8 Good 2 0.2 PPM
4:00 AM WBY NO2 1 Good 34 36 PPB
4:00 AM WBY NO2 1 Good 34 36 PPB
4:00 AM WBY O3 8 Good 21 23 PPB
4:00 AM WBY PM10 24 Good 42 45 µg/m3
4:00 AM WCH O3 8 Good 40 43 PPB
3:00 AM ACAD O3 8 Good 34 37 PPB
3:00 AM ADM PM10 24 Good 18 19 µg/m3
3:00 AM ADM PM2.5 24 Good 20 5 µg/m3
3:00 AM ASPN O3 8 Good 36 39 PPB
3:00 AM ASPN2 PM10 24 Good 27 29 µg/m3
3:00 AM AURE O3 8 Good 36 39 PPB
3:00 AM BHWK O3 8 Good 45 49 PPB
3:00 AM BOUR O3 8 Good 41 44 PPB
3:00 AM CAMP CO 8 Good 2 0.2 PPM
3:00 AM CAMP NO2 1 Good 12 13 PPB
3:00 AM CAMP NO2 1 Good 12 13 PPB
3:00 AM CAMP O3 8 Good 29 31 PPB
3:00 AM CAMP PM10 24 Good 11 12 µg/m3
3:00 AM CAMP PM2.5 24 Good 21 5 µg/m3
3:00 AM CASA CO 8 Good 2 0.2 PPM
3:00 AM CASA NO2 1 Good 20 21 PPB
3:00 AM CASA O3 8 Good 23 25 PPB
3:00 AM CASA PM10 24 Good 21 23 µg/m3
3:00 AM CASA PM2.5 24 Good 24 6 µg/m3
3:00 AM CCOL PM10 24 Good 12 13 µg/m3
3:00 AM CCOL PM2.5 24 Good 19 5 µg/m3
3:00 AM CHAT O3 8 Good 30 32 PPB
3:00 AM CHAT PM10 24 Good 18 19 µg/m3
3:00 AM CHAT PM2.5 24 Good 22 5 µg/m3
3:00 AM CTZ O3 8 Good 21 23 PPB
3:00 AM FTC CO 8 Good 2 0.2 PPM
3:00 AM FTC O3 8 Good 25 27 PPB
3:00 AM FTCF PM10 24 Good 17 18 µg/m3
3:00 AM FTCF PM2.5 24 Good 34 8 µg/m3
3:00 AM FTCW O3 8 Good 44 47 PPB
3:00 AM GJPB PM10 24 Good 15 16 µg/m3
3:00 AM GJPB PM2.5 24 Good 14 3 µg/m3
3:00 AM GREH PM10 24 Good 25 27 µg/m3
3:00 AM GREH PM2.5 24 Good 30 7 µg/m3
3:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM GRET O3 8 Good 31 33 PPB
3:00 AM H24 CO 8 Good 2 0.2 PPM
3:00 AM HLD O3 8 Good 37 40 PPB
3:00 AM I25DEN CO 8 Good 5 0.4 PPM
3:00 AM I25DEN NO2 1 Good 25 26 PPB
3:00 AM I25DEN PM10 24 Good 21 23 µg/m3
3:00 AM I25DEN PM2.5 24 Good 22 5 µg/m3
3:00 AM I25GLO NO2 1 Good 30 32 PPB
3:00 AM I25GLO PM10 24 Good 20 22 µg/m3
3:00 AM I25GLO PM2.5 24 Good 23 6 µg/m3
3:00 AM LNGM PM10 24 Good 19 21 µg/m3
3:00 AM LNGM PM2.5 24 Good 25 6 µg/m3
3:00 AM MAN O3 8 Good 39 42 PPB
3:00 AM NJH PM10 24 Good 19 21 µg/m3
3:00 AM NJH PM2.5 24 Good 25 6 µg/m3
3:00 AM NREL O3 8 Good 48 52 PPB
3:00 AM PAL O3 8 Good 48 52 PPB
3:00 AM PAO NO2 1 Good 7 7 PPB
3:00 AM PAO O3 8 Good 32 35 PPB
3:00 AM RFN O3 8 Moderate 51 55 PPB
3:00 AM RIFLO3 O3 8 Good 35 38 PPB
3:00 AM SWAN PM2.5 24 Good 31 7 µg/m3
3:00 AM WBY CO 8 Good 2 0.2 PPM
3:00 AM WBY NO2 1 Good 33 35 PPB
3:00 AM WBY NO2 1 Good 33 35 PPB
3:00 AM WBY O3 8 Good 25 27 PPB
3:00 AM WBY PM10 24 Good 41 44 µg/m3
3:00 AM WCH O3 8 Good 41 44 PPB
2:00 AM ACAD O3 8 Good 34 37 PPB
2:00 AM ADM PM10 24 Good 17 18 µg/m3
2:00 AM ADM PM2.5 24 Good 20 5 µg/m3
2:00 AM ASPN O3 8 Good 37 40 PPB
2:00 AM ASPN2 PM10 24 Good 27 29 µg/m3
2:00 AM AURE O3 8 Good 38 41 PPB
2:00 AM BHWK O3 8 Good 46 50 PPB
2:00 AM BOUR O3 8 Good 43 46 PPB
2:00 AM CAMP CO 8 Good 2 0.2 PPM
2:00 AM CAMP NO2 1 Good 15 16 PPB
2:00 AM CAMP NO2 1 Good 15 16 PPB
2:00 AM CAMP O3 8 Good 31 33 PPB
2:00 AM CAMP PM10 24 Good 12 13 µg/m3
2:00 AM CAMP PM2.5 24 Good 22 5 µg/m3
2:00 AM CASA CO 8 Good 2 0.2 PPM
2:00 AM CASA NO2 1 Good 10 11 PPB
2:00 AM CASA O3 8 Good 27 29 PPB
2:00 AM CASA PM10 24 Good 21 23 µg/m3
2:00 AM CASA PM2.5 24 Good 24 6 µg/m3
2:00 AM CCOL PM10 24 Good 13 14 µg/m3
2:00 AM CCOL PM2.5 24 Good 20 5 µg/m3
2:00 AM CHAT O3 8 Good 31 34 PPB
2:00 AM CHAT PM10 24 Good 19 20 µg/m3
2:00 AM CHAT PM2.5 24 Good 22 5 µg/m3
2:00 AM CTZ O3 8 Good 23 25 PPB
2:00 AM FTC CO 8 Good 2 0.2 PPM
2:00 AM FTC O3 8 Good 27 29 PPB
2:00 AM FTCF PM10 24 Good 16 17 µg/m3
2:00 AM FTCF PM2.5 24 Good 29 7 µg/m3
2:00 AM FTCW O3 8 Good 44 48 PPB
2:00 AM GJPB PM10 24 Good 15 16 µg/m3
2:00 AM GJPB PM2.5 24 Good 14 3 µg/m3
2:00 AM GREH PM10 24 Good 25 27 µg/m3
2:00 AM GREH PM2.5 24 Good 30 7 µg/m3
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM GRET O3 8 Good 32 35 PPB
2:00 AM H24 CO 8 Good 2 0.2 PPM
2:00 AM HLD O3 8 Good 37 40 PPB
2:00 AM I25DEN CO 8 Good 5 0.4 PPM
2:00 AM I25DEN NO2 1 Good 28 30 PPB
2:00 AM I25DEN PM10 24 Good 21 23 µg/m3
2:00 AM I25DEN PM2.5 24 Good 22 5 µg/m3
2:00 AM I25GLO NO2 1 Good 28 30 PPB
2:00 AM I25GLO PM10 24 Good 20 22 µg/m3
2:00 AM I25GLO PM2.5 24 Good 24 6 µg/m3
2:00 AM LNGM PM10 24 Good 20 22 µg/m3
2:00 AM LNGM PM2.5 24 Good 25 6 µg/m3
2:00 AM MAN O3 8 Good 38 41 PPB
2:00 AM NJH PM10 24 Good 20 22 µg/m3
2:00 AM NJH PM2.5 24 Good 26 6 µg/m3
2:00 AM NREL O3 8 Good 50 54 PPB
2:00 AM PAL O3 8 Moderate 51 55 PPB
2:00 AM PAO NO2 1 Good 7 7 PPB
2:00 AM PAO O3 8 Good 32 35 PPB
2:00 AM RFN O3 8 Moderate 54 56 PPB
2:00 AM RIFLO3 O3 8 Good 38 41 PPB
2:00 AM SWAN PM2.5 24 Good 31 8 µg/m3
2:00 AM WBY CO 8 Good 1 0.1 PPM
2:00 AM WBY NO2 1 Good 14 15 PPB
2:00 AM WBY NO2 1 Good 14 15 PPB
2:00 AM WBY O3 8 Good 31 34 PPB
2:00 AM WBY PM10 24 Good 41 44 µg/m3
2:00 AM WCH O3 8 Good 41 44 PPB
1:00 AM ACAD O3 8 Good 35 38 PPB
1:00 AM ADM PM10 24 Good 18 19 µg/m3
1:00 AM ADM PM2.5 24 Good 22 5 µg/m3
1:00 AM ASPN O3 8 Good 38 41 PPB
1:00 AM ASPN2 PM10 24 Good 27 29 µg/m3
1:00 AM AURE O3 8 Good 41 44 PPB
1:00 AM BHWK O3 8 Good 48 52 PPB
1:00 AM BOUR O3 8 Good 45 49 PPB
1:00 AM CAMP CO 8 Good 2 0.2 PPM
1:00 AM CAMP NO2 1 Good 8 8 PPB
1:00 AM CAMP NO2 1 Good 8 8 PPB
1:00 AM CAMP O3 8 Good 34 37 PPB
1:00 AM CAMP PM10 24 Good 12 13 µg/m3
1:00 AM CAMP PM2.5 24 Good 22 5 µg/m3
1:00 AM CASA CO 8 Good 2 0.2 PPM
1:00 AM CASA NO2 1 Good 7 7 PPB
1:00 AM CASA O3 8 Good 31 33 PPB
1:00 AM CASA PM10 24 Good 21 23 µg/m3
1:00 AM CASA PM2.5 24 Good 25 6 µg/m3
1:00 AM CCOL PM10 24 Good 13 14 µg/m3
1:00 AM CCOL PM2.5 24 Good 21 5 µg/m3
1:00 AM CHAT O3 8 Good 35 38 PPB
1:00 AM CHAT PM10 24 Good 19 20 µg/m3
1:00 AM CHAT PM2.5 24 Good 23 6 µg/m3
1:00 AM CTZ O3 8 Good 26 28 PPB
1:00 AM FTC CO 8 Good 2 0.2 PPM
1:00 AM FTC O3 8 Good 30 32 PPB
1:00 AM FTCF PM10 24 Good 16 17 µg/m3
1:00 AM FTCF PM2.5 24 Good 27 6 µg/m3
1:00 AM FTCW O3 8 Good 46 50 PPB
1:00 AM GJPB PM10 24 Good 15 16 µg/m3
1:00 AM GJPB PM2.5 24 Good 14 3 µg/m3
1:00 AM GREH PM10 24 Good 25 27 µg/m3
1:00 AM GREH PM2.5 24 Good 31 8 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 34 37 PPB
1:00 AM H24 CO 8 Good 3 0.3 PPM
1:00 AM HLD O3 8 Good 39 42 PPB
1:00 AM I25DEN CO 8 Good 5 0.4 PPM
1:00 AM I25DEN NO2 1 Good 30 32 PPB
1:00 AM I25DEN PM10 24 Good 21 23 µg/m3
1:00 AM I25DEN PM2.5 24 Good 23 6 µg/m3
1:00 AM I25GLO NO2 1 Good 28 30 PPB
1:00 AM I25GLO PM10 24 Good 21 23 µg/m3
1:00 AM I25GLO PM2.5 24 Good 25 6 µg/m3
1:00 AM LNGM PM10 24 Good 20 22 µg/m3
1:00 AM LNGM PM2.5 24 Good 25 6 µg/m3
1:00 AM MAN O3 8 Good 38 41 PPB
1:00 AM NJH PM10 24 Good 20 22 µg/m3
1:00 AM NJH PM2.5 24 Good 27 7 µg/m3
1:00 AM NREL O3 8 Moderate 54 56 PPB
1:00 AM PAL O3 8 Moderate 61 58 PPB
1:00 AM PAO NO2 1 Good 7 7 PPB
1:00 AM RFN O3 8 Moderate 61 58 PPB
1:00 AM RIFLO3 O3 8 Good 41 44 PPB
1:00 AM SWAN PM2.5 24 Good 32 8 µg/m3
1:00 AM WBY CO 8 Good 1 0.1 PPM
1:00 AM WBY NO2 1 Good 2 2 PPB
1:00 AM WBY NO2 1 Good 2 2 PPB
1:00 AM WBY O3 8 Good 36 39 PPB
1:00 AM WBY PM10 24 Good 40 43 µg/m3
1:00 AM WCH O3 8 Good 43 46 PPB

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