Translate

AQI Calculations on 11/23/2017 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.

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.
2:00 AM ADM PM10 24 Moderate 54 61 µg/m3
1:00 AM ADM PM10 24 Moderate 54 62 µg/m3
1:00 AM ADM PM2.5 24 Moderate 54 14 µg/m3
2:00 AM ADM PM2.5 24 Moderate 53 13 µg/m3
2:00 AM GREH PM2.5 24 Moderate 53 13 µg/m3
1:00 AM GREH PM2.5 24 Moderate 53 13 µg/m3
1:00 AM LNGM PM2.5 24 Moderate 52 12 µg/m3
2:00 AM LNGM PM2.5 24 Moderate 51 12 µg/m3
2:00 AM SWAN PM2.5 24 Good 46 11 µg/m3
1:00 AM SWAN PM2.5 24 Good 46 11 µg/m3
1:00 AM DELT PM2.5 24 Good 38 9 µg/m3
1:00 AM I25GLO PM2.5 24 Good 38 9 µg/m3
2:00 AM DELT PM2.5 24 Good 37 9 µg/m3
2:00 AM I25GLO PM2.5 24 Good 36 9 µg/m3
2:00 AM NREL O3 8 Good 27 29 PPB
2:00 AM RFN O3 8 Good 27 29 PPB
1:00 AM FTCF PM2.5 24 Good 27 6 µg/m3
1:00 AM RFN O3 8 Good 27 29 PPB
2:00 AM FTCF PM2.5 24 Good 26 6 µg/m3
2:00 AM I25GLO PM10 24 Good 26 28 µg/m3
1:00 AM CASA PM2.5 24 Good 26 6 µg/m3
1:00 AM I25GLO PM10 24 Good 26 28 µg/m3
1:00 AM NREL O3 8 Good 26 28 PPB
2:00 AM MAN O3 8 Good 25 27 PPB
1:00 AM CAMP PM2.5 24 Good 25 6 µg/m3
1:00 AM MAN O3 8 Good 25 27 PPB
2:00 AM CAMP PM2.5 24 Good 24 6 µg/m3
2:00 AM CASA PM2.5 24 Good 24 6 µg/m3
2:00 AM GJPB PM2.5 24 Good 24 6 µg/m3
2:00 AM RIFL PM2.5 24 Good 24 6 µg/m3
1:00 AM ASP O3 8 Good 24 26 PPB
1:00 AM GJPB PM2.5 24 Good 24 6 µg/m3
1:00 AM I25DEN PM2.5 24 Good 24 6 µg/m3
2:00 AM ASP O3 8 Good 23 25 PPB
2:00 AM I25DEN PM2.5 24 Good 23 6 µg/m3
1:00 AM WBY NO2 1 Good 23 24 PPB
1:00 AM WBY NO2 1 Good 23 24 PPB
2:00 AM SWAN PM10 24 Good 22 24 µg/m3
1:00 AM BOUR O3 8 Good 22 24 PPB
1:00 AM FTCW O3 8 Good 22 24 PPB
1:00 AM RIFL PM2.5 24 Good 22 5 µg/m3
2:00 AM BOUR O3 8 Good 21 23 PPB
2:00 AM FTCW O3 8 Good 21 23 PPB
2:00 AM WBY NO2 1 Good 21 22 PPB
2:00 AM WBY NO2 1 Good 21 22 PPB
2:00 AM WCH O3 8 Good 21 23 PPB
1:00 AM CASA NO2 1 Good 21 22 PPB
1:00 AM ELK O3 8 Good 21 23 PPB
1:00 AM I25GLO NO2 1 Good 21 22 PPB
1:00 AM SWAN PM10 24 Good 21 23 µg/m3
1:00 AM WCH O3 8 Good 21 23 PPB
2:00 AM ASPN2 PM2.5 24 Good 20 5 µg/m3
2:00 AM ELK O3 8 Good 20 22 PPB
2:00 AM GREH PM10 24 Good 20 22 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 20 5 µg/m3
1:00 AM GREH PM10 24 Good 20 22 µg/m3
1:00 AM SWAN NO2 1 Good 20 21 PPB
2:00 AM AURE O3 8 Good 19 20 PPB
2:00 AM CASA NO2 1 Good 19 20 PPB
2:00 AM I25DEN NO2 1 Good 19 20 PPB
1:00 AM CTZ O3 8 Good 19 21 PPB
1:00 AM I25DEN NO2 1 Good 19 20 PPB
2:00 AM CTZ O3 8 Good 18 19 PPB
2:00 AM HLD O3 8 Good 18 19 PPB
2:00 AM I25GLO NO2 1 Good 18 19 PPB
1:00 AM AURE O3 8 Good 18 19 PPB
1:00 AM HLD O3 8 Good 18 19 PPB
1:00 AM PAL O3 8 Good 18 19 PPB
2:00 AM PAL O3 8 Good 17 18 PPB
2:00 AM PDX O3 8 Good 17 18 PPB
2:00 AM SWAN NO2 1 Good 17 18 PPB
1:00 AM CCOL PM2.5 24 Good 17 4 µg/m3
1:00 AM CHAT O3 8 Good 17 18 PPB
1:00 AM PDX O3 8 Good 17 18 PPB
2:00 AM ASPN2 PM10 24 Good 16 17 µg/m3
2:00 AM CCOL PM2.5 24 Good 16 4 µg/m3
1:00 AM ASPN2 PM10 24 Good 16 17 µg/m3
2:00 AM CHAT O3 8 Good 15 16 PPB
2:00 AM GJPB PM10 24 Good 14 15 µg/m3
2:00 AM I25DEN PM10 24 Good 14 15 µg/m3
2:00 AM WBY PM10 24 Good 14 15 µg/m3
1:00 AM CAMP NO2 1 Good 14 15 PPB
1:00 AM CAMP NO2 1 Good 14 15 PPB
1:00 AM GJPB PM10 24 Good 14 15 µg/m3
1:00 AM I25DEN PM10 24 Good 14 15 µg/m3
1:00 AM WBY PM10 24 Good 14 15 µg/m3
1:00 AM CASA PM10 24 Good 13 14 µg/m3
2:00 AM CASA PM10 24 Good 12 13 µg/m3
2:00 AM ASPN O3 8 Good 11 12 PPB
1:00 AM ASPN O3 8 Good 11 12 PPB
2:00 AM CAMP NO2 1 Good 10 11 PPB
2:00 AM CAMP NO2 1 Good 10 11 PPB
2:00 AM CCOL PM10 24 Good 10 11 µg/m3
1:00 AM CAMP PM10 24 Good 10 11 µg/m3
1:00 AM CCOL PM10 24 Good 10 11 µg/m3
2:00 AM CAMP PM10 24 Good 9 10 µg/m3
2:00 AM FTCF PM10 24 Good 9 10 µg/m3
1:00 AM CHAT PM2.5 24 Good 9 2 µg/m3
1:00 AM FTCF PM10 24 Good 9 10 µg/m3
2:00 AM CHAT PM2.5 24 Good 8 2 µg/m3
1:00 AM FTC O3 8 Good 8 9 PPB
1:00 AM H24 CO 8 Good 8 0.7 PPM
2:00 AM ACAD O3 8 Good 7 8 PPB
2:00 AM H24 CO 8 Good 7 0.6 PPM
1:00 AM ACAD O3 8 Good 7 8 PPB
1:00 AM I25DEN CO 8 Good 7 0.6 PPM
1:00 AM WBY O3 8 Good 7 8 PPB
2:00 AM FTC O3 8 Good 6 7 PPB
2:00 AM GJCT CO 8 Good 6 0.5 PPM
2:00 AM I25DEN CO 8 Good 6 0.5 PPM
2:00 AM WBY O3 8 Good 6 6 PPB
2:00 AM CAMP CO 8 Good 5 0.4 PPM
2:00 AM CAMP O3 8 Good 5 5 PPB
2:00 AM CASA CO 8 Good 5 0.4 PPM
1:00 AM CAMP CO 8 Good 5 0.4 PPM
1:00 AM CAMP O3 8 Good 5 5 PPB
1:00 AM CASA CO 8 Good 5 0.4 PPM
1:00 AM GJCT CO 8 Good 5 0.4 PPM
2:00 AM CHAT PM10 24 Good 4 4 µg/m3
1:00 AM CASA O3 8 Good 4 4 PPB
1:00 AM CHAT PM10 24 Good 4 4 µg/m3
1:00 AM GRET O3 8 Good 4 4 PPB
2:00 AM GRET CO 8 Good 3 0.3 PPM
2:00 AM GRET O3 8 Good 3 3 PPB
2:00 AM WBY CO 8 Good 3 0.3 PPM
1:00 AM WBY CO 8 Good 3 0.3 PPM
2:00 AM CASA O3 8 Good 2 2 PPB
2:00 AM FTC CO 8 Good 2 0.2 PPM
1:00 AM FTC CO 8 Good 2 0.2 PPM
1:00 AM GRET CO 8 Good 2 0.2 PPM
2:00 AM H24 SO2 1 Good 1 1 PPB
2:00 AM RIFLO3 O3 8 Good 0 0 PPB
1:00 AM RIFLO3 O3 8 Good 0 0 PPB

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