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