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AQI Calculations on 11/19/2017 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.
1:00 AM ACAD O3 8 Good 13 14 PPB
2:00 AM ACAD O3 8 Good 12 13 PPB
1:00 AM ADM PM10 24 Good 12 13 µg/m3
1:00 AM ADM PM2.5 24 Good 18 4 µg/m3
2:00 AM ADM PM10 24 Good 13 14 µg/m3
2:00 AM ADM PM2.5 24 Good 19 5 µg/m3
1:00 AM ASP O3 8 Good 32 35 PPB
2:00 AM ASP O3 8 Good 33 36 PPB
1:00 AM ASPN O3 8 Good 35 38 PPB
2:00 AM ASPN O3 8 Good 36 39 PPB
1:00 AM ASPN2 PM10 24 Good 6 6 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 17 4 µg/m3
2:00 AM ASPN2 PM10 24 Good 6 6 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 18 4 µg/m3
1:00 AM AURE O3 8 Good 29 31 PPB
2:00 AM AURE O3 8 Good 29 31 PPB
1:00 AM BOUR O3 8 Good 18 19 PPB
2:00 AM BOUR O3 8 Good 17 18 PPB
1:00 AM CAMP CO 8 Good 3 0.3 PPM
1:00 AM CAMP NO2 1 Good 17 18 PPB
1:00 AM CAMP NO2 1 Good 17 18 PPB
1:00 AM CAMP O3 8 Good 15 16 PPB
1:00 AM CAMP PM10 24 Good 4 4 µg/m3
1:00 AM CAMP PM2.5 24 Good 11 3 µg/m3
2:00 AM CAMP CO 8 Good 3 0.3 PPM
2:00 AM CAMP NO2 1 Good 24 25 PPB
2:00 AM CAMP NO2 1 Good 24 25 PPB
2:00 AM CAMP O3 8 Good 12 13 PPB
2:00 AM CAMP PM10 24 Good 4 4 µg/m3
2:00 AM CAMP PM2.5 24 Good 11 3 µg/m3
1:00 AM CASA CO 8 Good 3 0.3 PPM
1:00 AM CASA NO2 1 Good 32 34 PPB
1:00 AM CASA O3 8 Good 9 10 PPB
1:00 AM CASA PM10 24 Good 4 4 µg/m3
1:00 AM CASA PM2.5 24 Good 11 3 µg/m3
2:00 AM CASA CO 8 Good 5 0.4 PPM
2:00 AM CASA NO2 1 Good 32 34 PPB
2:00 AM CASA O3 8 Good 5 5 PPB
2:00 AM CASA PM10 24 Good 4 4 µg/m3
2:00 AM CASA PM2.5 24 Good 12 3 µg/m3
2:00 AM CASA SO2 1 Good 1 1 PPB
1:00 AM CHAT O3 8 Good 22 24 PPB
1:00 AM CHAT PM10 24 Good 5 5 µg/m3
1:00 AM CHAT PM2.5 24 Good 10 2 µg/m3
2:00 AM CHAT O3 8 Good 21 23 PPB
2:00 AM CHAT PM10 24 Good 5 5 µg/m3
2:00 AM CHAT PM2.5 24 Good 10 2 µg/m3
1:00 AM CTZ O3 8 Good 18 19 PPB
2:00 AM CTZ O3 8 Good 16 17 PPB
1:00 AM DELT PM2.5 24 Good 26 6 µg/m3
2:00 AM DELT PM2.5 24 Good 29 7 µg/m3
1:00 AM ELK O3 8 Good 28 30 PPB
2:00 AM ELK O3 8 Good 28 30 PPB
1:00 AM FTC CO 8 Good 6 0.5 PPM
1:00 AM FTC O3 8 Good 6 7 PPB
2:00 AM FTC CO 8 Good 5 0.4 PPM
2:00 AM FTC O3 8 Good 6 7 PPB
1:00 AM FTCF PM10 24 Good 9 10 µg/m3
1:00 AM FTCF PM2.5 24 Good 20 5 µg/m3
2:00 AM FTCF PM10 24 Good 9 10 µg/m3
2:00 AM FTCF PM2.5 24 Good 20 5 µg/m3
1:00 AM FTCW O3 8 Good 25 27 PPB
2:00 AM FTCW O3 8 Good 24 26 PPB
1:00 AM GJCT CO 8 Good 3 0.3 PPM
2:00 AM GJCT CO 8 Good 3 0.3 PPM
1:00 AM GJPB PM10 24 Good 4 4 µg/m3
1:00 AM GJPB PM2.5 24 Good 15 4 µg/m3
2:00 AM GJPB PM10 24 Good 5 5 µg/m3
2:00 AM GJPB PM2.5 24 Good 16 4 µg/m3
1:00 AM GREH PM10 24 Good 11 12 µg/m3
1:00 AM GREH PM2.5 24 Good 31 8 µg/m3
2:00 AM GREH PM10 24 Good 11 12 µg/m3
2:00 AM GREH PM2.5 24 Good 30 7 µg/m3
1:00 AM GRET CO 8 Good 2 0.2 PPM
1:00 AM GRET O3 8 Good 17 18 PPB
2:00 AM GRET CO 8 Good 2 0.2 PPM
2:00 AM GRET O3 8 Good 13 14 PPB
1:00 AM H24 CO 8 Good 6 0.5 PPM
2:00 AM H24 CO 8 Good 6 0.5 PPM
1:00 AM HLD O3 8 Good 27 29 PPB
2:00 AM HLD O3 8 Good 29 31 PPB
1:00 AM I25DEN CO 8 Good 6 0.5 PPM
1:00 AM I25DEN PM10 24 Good 7 8 µg/m3
1:00 AM I25DEN PM2.5 24 Good 14 3 µg/m3
2:00 AM I25DEN CO 8 Good 7 0.6 PPM
2:00 AM I25DEN PM10 24 Good 7 8 µg/m3
2:00 AM I25DEN PM2.5 24 Good 15 4 µg/m3
1:00 AM I25GLO NO2 1 Good 32 34 PPB
1:00 AM I25GLO PM10 24 Good 12 13 µg/m3
1:00 AM I25GLO PM2.5 24 Good 19 5 µg/m3
2:00 AM I25GLO NO2 1 Good 35 37 PPB
2:00 AM I25GLO PM10 24 Good 12 13 µg/m3
2:00 AM I25GLO PM2.5 24 Good 20 5 µg/m3
1:00 AM LNGM PM2.5 24 Good 28 7 µg/m3
2:00 AM LNGM PM2.5 24 Good 30 7 µg/m3
1:00 AM MAN O3 8 Good 25 27 PPB
2:00 AM MAN O3 8 Good 24 26 PPB
1:00 AM NREL O3 8 Good 36 39 PPB
2:00 AM NREL O3 8 Good 35 38 PPB
1:00 AM PAL O3 8 Good 25 27 PPB
2:00 AM PAL O3 8 Good 24 26 PPB
1:00 AM PDX O3 8 Good 24 26 PPB
2:00 AM PDX O3 8 Good 23 25 PPB
1:00 AM RFN O3 8 Good 42 45 PPB
2:00 AM RFN O3 8 Good 41 44 PPB
1:00 AM RIFL PM2.5 24 Good 17 4 µg/m3
2:00 AM RIFL PM2.5 24 Good 19 5 µg/m3
1:00 AM RIFLO3 O3 8 Good 9 10 PPB
2:00 AM RIFLO3 O3 8 Good 8 9 PPB
1:00 AM SWAN NO2 1 Good 32 34 PPB
1:00 AM SWAN PM10 24 Good 7 8 µg/m3
1:00 AM SWAN PM2.5 24 Good 18 4 µg/m3
2:00 AM SWAN NO2 1 Good 33 35 PPB
2:00 AM SWAN PM10 24 Good 7 8 µg/m3
2:00 AM SWAN PM2.5 24 Good 19 5 µg/m3
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 11 12 PPB
1:00 AM WBY PM10 24 Good 6 7 µg/m3
2:00 AM WBY CO 8 Good 5 0.4 PPM
2:00 AM WBY NO2 1 Good 29 31 PPB
2:00 AM WBY NO2 1 Good 29 31 PPB
2:00 AM WBY O3 8 Good 6 7 PPB
2:00 AM WBY PM10 24 Good 7 8 µg/m3
1:00 AM WCH O3 8 Good 23 25 PPB
2:00 AM WCH O3 8 Good 24 26 PPB

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