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AQI Calculations on 01/19/2020 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 7 8 PPB
2:00 AM ADM PM10 24 Good 23 25 µg/m3
2:00 AM ADM PM2.5 24 Good 28 7 µg/m3
2:00 AM ASPN O3 8 Good 23 25 PPB
2:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 15 4 µg/m3
2:00 AM AURE O3 8 Good 22 24 PPB
2:00 AM BHWK O3 8 Good 41 44 PPB
2:00 AM BOUR O3 8 Good 18 19 PPB
2:00 AM CAMP CO 8 Good 6 0.5 PPM
2:00 AM CAMP NO2 1 Good 36 38 PPB
2:00 AM CAMP NO2 1 Good 36 38 PPB
2:00 AM CAMP O3 8 Good 2 2 PPB
2:00 AM CAMP PM10 24 Good 19 21 µg/m3
2:00 AM CAMP PM2.5 24 Good 25 6 µg/m3
2:00 AM CASA CO 8 Good 6 0.5 PPM
2:00 AM CASA NO2 1 Good 35 37 PPB
2:00 AM CASA O3 8 Good 4 4 PPB
2:00 AM CASA PM10 24 Good 19 21 µg/m3
2:00 AM CASA PM2.5 24 Good 24 6 µg/m3
2:00 AM CCOL PM10 24 Good 14 15 µg/m3
2:00 AM CCOL PM2.5 24 Good 19 5 µg/m3
2:00 AM CHAT O3 8 Good 15 16 PPB
2:00 AM CHAT PM10 24 Good 14 15 µg/m3
2:00 AM CHAT PM2.5 24 Good 15 4 µg/m3
2:00 AM CTZ O3 8 Good 19 20 PPB
2:00 AM FTC CO 8 Good 5 0.4 PPM
2:00 AM FTC O3 8 Good 6 6 PPB
2:00 AM FTCF PM10 24 Good 7 8 µg/m3
2:00 AM FTCF PM2.5 24 Good 13 3 µg/m3
2:00 AM FTCW O3 8 Good 21 23 PPB
2:00 AM GJPB PM10 24 Good 6 6 µg/m3
2:00 AM GJPB PM2.5 24 Good 19 5 µg/m3
2:00 AM GREH PM10 24 Good 26 28 µg/m3
2:00 AM GREH PM2.5 24 Good 28 7 µg/m3
2:00 AM GRET CO 8 Good 3 0.3 PPM
2:00 AM GRET O3 8 Good 4 4 PPB
2:00 AM H24 CO 8 Good 7 0.6 PPM
2:00 AM HLD O3 8 Good 9 10 PPB
2:00 AM I25DEN CO 8 Good 8 0.7 PPM
2:00 AM I25DEN NO2 1 Good 32 34 PPB
2:00 AM I25DEN PM10 24 Good 17 18 µg/m3
2:00 AM I25DEN PM2.5 24 Good 23 6 µg/m3
2:00 AM I25GLO NO2 1 Good 42 44 PPB
2:00 AM I25GLO PM10 24 Good 28 30 µg/m3
2:00 AM I25GLO PM2.5 24 Good 34 8 µg/m3
2:00 AM LNGM PM10 24 Good 19 21 µg/m3
2:00 AM LNGM PM2.5 24 Good 23 6 µg/m3
2:00 AM MAN O3 8 Good 29 31 PPB
2:00 AM NJH PM10 24 Good 19 20 µg/m3
2:00 AM NJH PM2.5 24 Good 23 6 µg/m3
2:00 AM NREL O3 8 Good 21 23 PPB
2:00 AM PAL O3 8 Good 26 28 PPB
2:00 AM RFN NO2 1 Good 4 4 PPB
2:00 AM RFN O3 8 Good 31 33 PPB
2:00 AM RIFL PM2.5 24 Good 17 4 µg/m3
2:00 AM RIFLO3 O3 8 Good 18 19 PPB
2:00 AM SWAN CO 8 Good 8 0.7 PPM
2:00 AM SWAN NO2 1 Good 39 41 PPB
2:00 AM WBY CO 8 Good 6 0.5 PPM
2:00 AM WBY NO2 1 Good 30 32 PPB
2:00 AM WBY NO2 1 Good 30 32 PPB
2:00 AM WBY O3 8 Good 4 4 PPB
2:00 AM WBY PM10 24 Good 25 27 µg/m3
2:00 AM WBY SO2 1 Good 1 1 PPB
2:00 AM WBY SO2 1 Good 1 1 PPB
2:00 AM WCH O3 8 Good 17 18 PPB
1:00 AM ACAD O3 8 Good 9 10 PPB
1:00 AM ADM PM10 24 Good 22 24 µg/m3
1:00 AM ADM PM2.5 24 Good 26 6 µg/m3
1:00 AM ASPN O3 8 Good 25 27 PPB
1:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 15 4 µg/m3
1:00 AM AURE O3 8 Good 24 26 PPB
1:00 AM BHWK O3 8 Good 41 44 PPB
1:00 AM BOUR O3 8 Good 20 22 PPB
1:00 AM CAMP CO 8 Good 6 0.5 PPM
1:00 AM CAMP NO2 1 Good 39 41 PPB
1:00 AM CAMP NO2 1 Good 39 41 PPB
1:00 AM CAMP O3 8 Good 4 4 PPB
1:00 AM CAMP PM10 24 Good 19 20 µg/m3
1:00 AM CAMP PM2.5 24 Good 24 6 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 CASA CO 8 Good 5 0.4 PPM
1:00 AM CASA NO2 1 Good 35 37 PPB
1:00 AM CASA O3 8 Good 6 6 PPB
1:00 AM CASA PM10 24 Good 19 20 µg/m3
1:00 AM CASA PM2.5 24 Good 22 5 µg/m3
1:00 AM CCOL PM10 24 Good 13 14 µg/m3
1:00 AM CCOL PM2.5 24 Good 18 4 µg/m3
1:00 AM CHAT O3 8 Good 18 19 PPB
1:00 AM CHAT PM10 24 Good 13 14 µg/m3
1:00 AM CHAT PM2.5 24 Good 14 3 µg/m3
1:00 AM CTZ O3 8 Good 19 20 PPB
1:00 AM FTC CO 8 Good 5 0.4 PPM
1:00 AM FTC O3 8 Good 7 8 PPB
1:00 AM FTCF PM10 24 Good 7 8 µg/m3
1:00 AM FTCF PM2.5 24 Good 12 3 µg/m3
1:00 AM FTCW O3 8 Good 23 25 PPB
1:00 AM GJPB PM10 24 Good 6 6 µg/m3
1:00 AM GJPB PM2.5 24 Good 20 5 µg/m3
1:00 AM GREH PM10 24 Good 25 27 µg/m3
1:00 AM GREH PM2.5 24 Good 25 6 µg/m3
1:00 AM GRET CO 8 Good 3 0.3 PPM
1:00 AM GRET O3 8 Good 5 5 PPB
1:00 AM H24 CO 8 Good 7 0.6 PPM
1:00 AM HLD O3 8 Good 10 11 PPB
1:00 AM I25DEN CO 8 Good 9 0.8 PPM
1:00 AM I25DEN NO2 1 Good 37 39 PPB
1:00 AM I25DEN PM10 24 Good 16 17 µg/m3
1:00 AM I25DEN PM2.5 24 Good 22 5 µg/m3
1:00 AM I25GLO NO2 1 Good 42 44 PPB
1:00 AM I25GLO PM10 24 Good 27 29 µg/m3
1:00 AM I25GLO PM2.5 24 Good 31 8 µg/m3
1:00 AM LNGM PM10 24 Good 19 20 µg/m3
1:00 AM LNGM PM2.5 24 Good 21 5 µg/m3
1:00 AM MAN O3 8 Good 29 31 PPB
1:00 AM NJH PM10 24 Good 19 20 µg/m3
1:00 AM NJH PM2.5 24 Good 22 5 µg/m3
1:00 AM NREL O3 8 Good 22 24 PPB
1:00 AM PAL O3 8 Good 26 28 PPB
1:00 AM RFN NO2 1 Good 3 3 PPB
1:00 AM RFN O3 8 Good 31 33 PPB
1:00 AM RIFL PM2.5 24 Good 16 4 µg/m3
1:00 AM RIFLO3 O3 8 Good 18 19 PPB
1:00 AM SWAN CO 8 Good 7 0.6 PPM
1:00 AM SWAN NO2 1 Good 41 43 PPB
1:00 AM WBY CO 8 Good 5 0.4 PPM
1:00 AM WBY NO2 1 Good 31 33 PPB
1:00 AM WBY NO2 1 Good 31 33 PPB
1:00 AM WBY O3 8 Good 7 8 PPB
1:00 AM WBY PM10 24 Good 25 27 µg/m3
1:00 AM WBY SO2 1 Good 1 1 PPB
1:00 AM WBY SO2 1 Good 1 1 PPB
1:00 AM WCH O3 8 Good 17 18 PPB

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