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

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