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AQI Calculations on 05/27/2015 1:00AM - 4:00AM

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 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.
4:00 AM ACAD O3 8 Good 19 22 PPB
4:00 AM ASP O3 8 Good 29 34 PPB
4:00 AM AURE O3 8 Good 36 42 PPB
4:00 AM BOU PM2.5 24 Good 6 1 µg/m3
4:00 AM CAMP CO 8 Good 2 0.2 PPM
4:00 AM CAMP NO2 1 Good 16 17 PPB
4:00 AM CAMP NO2 1 Good 16 17 PPB
4:00 AM CAMP O3 8 Good 20 24 PPB
4:00 AM CAMP PM10 24 Good 8 9 µg/m3
4:00 AM CAMP PM2.5 24 Good 12 3 µg/m3
4:00 AM CAMP SO2 1 Good 1 1 PPB
4:00 AM CAMP SO2 1 Good 1 1 PPB
4:00 AM CASA CO 8 Good 2 0.2 PPM
4:00 AM CASA O3 8 Good 19 22 PPB
4:00 AM CASA PM10 24 Good 5 5 µg/m3
4:00 AM CASA PM2.5 24 Good 10 2 µg/m3
4:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
4:00 AM CHAT O3 8 Good 25 30 PPB
4:00 AM CHAT PM2.5 24 Good 22 5 µg/m3
4:00 AM COMM PM2.5 24 Good 17 4 µg/m3
4:00 AM CTZ O3 8 Good 25 30 PPB
4:00 AM DELT PM2.5 24 Good 19 5 µg/m3
4:00 AM FTC O3 8 Good 15 18 PPB
4:00 AM FTCF PM10 24 Good 21 23 µg/m3
4:00 AM FTCW O3 8 Good 23 27 PPB
4:00 AM GJCT CO 8 Good 2 0.2 PPM
4:00 AM GJPB PM10 24 Good 3 3 µg/m3
4:00 AM GJPB PM2.5 24 Good 8 2 µg/m3
4:00 AM GREA CO 8 Good 2 0.2 PPM
4:00 AM GREH PM2.5 24 Good 27 6 µg/m3
4:00 AM GRET O3 8 Good 19 22 PPB
4:00 AM H24 CO 8 Good 2 0.2 PPM
4:00 AM I-25 CO 8 Good 2 0.2 PPM
4:00 AM I-25 NO2 1 Good 22 23 PPB
4:00 AM I-25 PM10 24 Good 14 15 µg/m3
4:00 AM I-25 PM2.5 24 Good 18 4 µg/m3
4:00 AM LNGM PM2.5 24 Good 32 8 µg/m3
4:00 AM MAN O3 8 Good 26 31 PPB
4:00 AM NJH PM2.5 24 Good 9 2 µg/m3
4:00 AM NREL O3 8 Good 31 36 PPB
4:00 AM PAL O3 8 Good 26 31 PPB
4:00 AM RFN O3 8 Good 34 40 PPB
4:00 AM RIFL PM2.5 24 Good 7 2 µg/m3
4:00 AM RIFLO3 O3 8 Good 15 18 PPB
4:00 AM SBC O3 8 Good 23 27 PPB
4:00 AM WBY CO 8 Good 3 0.3 PPM
4:00 AM WBY NO2 1 Good 26 28 PPB
4:00 AM WBY NO2 1 Good 26 28 PPB
4:00 AM WBY O3 8 Good 12 14 PPB
4:00 AM WBY PM10 24 Good 15 16 µg/m3
4:00 AM WCH O3 8 Good 26 31 PPB
3:00 AM ACAD O3 8 Good 23 27 PPB
3:00 AM ASP O3 8 Good 29 34 PPB
3:00 AM AURE O3 8 Good 36 43 PPB
3:00 AM BOU PM2.5 24 Good 6 1 µg/m3
3:00 AM CAMP CO 8 Good 2 0.2 PPM
3:00 AM CAMP NO2 1 Good 9 10 PPB
3:00 AM CAMP NO2 1 Good 9 10 PPB
3:00 AM CAMP O3 8 Good 23 27 PPB
3:00 AM CAMP PM10 24 Good 8 9 µg/m3
3:00 AM CAMP PM2.5 24 Good 12 3 µg/m3
3:00 AM CAMP SO2 1 Good 1 1 PPB
3:00 AM CAMP SO2 1 Good 1 1 PPB
3:00 AM CASA CO 8 Good 2 0.2 PPM
3:00 AM CASA O3 8 Good 20 24 PPB
3:00 AM CASA PM10 24 Good 5 5 µg/m3
3:00 AM CASA PM2.5 24 Good 10 2 µg/m3
3:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
3:00 AM CHAT O3 8 Good 27 32 PPB
3:00 AM CHAT PM2.5 24 Good 22 5 µg/m3
3:00 AM COMM PM2.5 24 Good 16 4 µg/m3
3:00 AM CTZ O3 8 Good 27 32 PPB
3:00 AM DELT PM2.5 24 Good 19 5 µg/m3
3:00 AM FTC O3 8 Good 16 19 PPB
3:00 AM FTCF PM10 24 Good 20 22 µg/m3
3:00 AM FTCW O3 8 Good 25 29 PPB
3:00 AM GJCT CO 8 Good 2 0.2 PPM
3:00 AM GJPB PM10 24 Good 3 3 µg/m3
3:00 AM GJPB PM2.5 24 Good 8 2 µg/m3
3:00 AM GREA CO 8 Good 2 0.2 PPM
3:00 AM GREH PM2.5 24 Good 28 7 µg/m3
3:00 AM GRET O3 8 Good 22 26 PPB
3:00 AM H24 CO 8 Good 2 0.2 PPM
3:00 AM I-25 CO 8 Good 2 0.2 PPM
3:00 AM I-25 NO2 1 Good 17 18 PPB
3:00 AM I-25 PM10 24 Good 14 15 µg/m3
3:00 AM I-25 PM2.5 24 Good 18 4 µg/m3
3:00 AM LNGM PM2.5 24 Good 32 8 µg/m3
3:00 AM MAN O3 8 Good 28 33 PPB
3:00 AM NJH PM2.5 24 Good 9 2 µg/m3
3:00 AM NREL O3 8 Good 32 38 PPB
3:00 AM PAL O3 8 Good 28 33 PPB
3:00 AM RFN O3 8 Good 34 40 PPB
3:00 AM RIFL PM2.5 24 Good 7 2 µg/m3
3:00 AM RIFLO3 O3 8 Good 17 20 PPB
3:00 AM SBC O3 8 Good 25 29 PPB
3:00 AM WBY CO 8 Good 3 0.3 PPM
3:00 AM WBY NO2 1 Good 18 19 PPB
3:00 AM WBY NO2 1 Good 18 19 PPB
3:00 AM WBY O3 8 Good 15 18 PPB
3:00 AM WBY PM10 24 Good 15 16 µg/m3
3:00 AM WCH O3 8 Good 27 32 PPB
2:00 AM ACAD O3 8 Good 25 30 PPB
2:00 AM ASP O3 8 Good 30 35 PPB
2:00 AM AURE O3 8 Good 37 44 PPB
2:00 AM BOU PM2.5 24 Good 6 1 µg/m3
2:00 AM CAMP CO 8 Good 2 0.2 PPM
2:00 AM CAMP NO2 1 Good 16 17 PPB
2:00 AM CAMP NO2 1 Good 16 17 PPB
2:00 AM CAMP O3 8 Good 24 28 PPB
2:00 AM CAMP PM10 24 Good 8 9 µg/m3
2:00 AM CAMP PM2.5 24 Good 12 3 µg/m3
2:00 AM CAMP SO2 1 Good 1 1 PPB
2:00 AM CAMP SO2 1 Good 1 1 PPB
2:00 AM CASA CO 8 Good 2 0.2 PPM
2:00 AM CASA O3 8 Good 24 28 PPB
2:00 AM CASA PM10 24 Good 5 5 µg/m3
2:00 AM CASA PM2.5 24 Good 10 2 µg/m3
2:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
2:00 AM CHAT O3 8 Good 29 34 PPB
2:00 AM CHAT PM2.5 24 Good 22 5 µg/m3
2:00 AM COMM PM2.5 24 Good 16 4 µg/m3
2:00 AM CTZ O3 8 Good 30 35 PPB
2:00 AM DELT PM2.5 24 Good 18 4 µg/m3
2:00 AM FTC O3 8 Good 18 21 PPB
2:00 AM FTCF PM10 24 Good 19 21 µg/m3
2:00 AM FTCW O3 8 Good 27 32 PPB
2:00 AM GJCT CO 8 Good 2 0.2 PPM
2:00 AM GJPB PM10 24 Good 3 3 µg/m3
2:00 AM GJPB PM2.5 24 Good 7 2 µg/m3
2:00 AM GREA CO 8 Good 2 0.2 PPM
2:00 AM GREH PM2.5 24 Good 26 6 µg/m3
2:00 AM GRET O3 8 Good 25 30 PPB
2:00 AM H24 CO 8 Good 2 0.2 PPM
2:00 AM I-25 CO 8 Good 3 0.3 PPM
2:00 AM I-25 NO2 1 Good 14 15 PPB
2:00 AM I-25 PM10 24 Good 14 15 µg/m3
2:00 AM I-25 PM2.5 24 Good 18 4 µg/m3
2:00 AM LNGM PM2.5 24 Good 31 7 µg/m3
2:00 AM MAN O3 8 Good 29 34 PPB
2:00 AM NJH PM2.5 24 Good 9 2 µg/m3
2:00 AM NREL O3 8 Good 33 39 PPB
2:00 AM PAL O3 8 Good 31 36 PPB
2:00 AM RFN O3 8 Good 36 42 PPB
2:00 AM RIFL PM2.5 24 Good 8 2 µg/m3
2:00 AM RIFLO3 O3 8 Good 19 23 PPB
2:00 AM SBC O3 8 Good 26 31 PPB
2:00 AM WBY CO 8 Good 3 0.3 PPM
2:00 AM WBY NO2 1 Good 17 18 PPB
2:00 AM WBY NO2 1 Good 17 18 PPB
2:00 AM WBY O3 8 Good 19 22 PPB
2:00 AM WBY PM10 24 Good 16 17 µg/m3
2:00 AM WCH O3 8 Good 29 34 PPB
1:00 AM ACAD O3 8 Good 29 34 PPB
1:00 AM ASP O3 8 Good 31 36 PPB
1:00 AM AURE O3 8 Good 38 45 PPB
1:00 AM BOU PM2.5 24 Good 5 1 µg/m3
1:00 AM CAMP CO 8 Good 2 0.2 PPM
1:00 AM CAMP NO2 1 Good 11 12 PPB
1:00 AM CAMP NO2 1 Good 11 12 PPB
1:00 AM CAMP O3 8 Good 26 31 PPB
1:00 AM CAMP PM10 24 Good 8 9 µg/m3
1:00 AM CAMP PM2.5 24 Good 12 3 µg/m3
1:00 AM CAMP SO2 1 Good 3 2 PPB
1:00 AM CAMP SO2 1 Good 3 2 PPB
1:00 AM CASA CO 8 Good 2 0.2 PPM
1:00 AM CASA O3 8 Good 25 30 PPB
1:00 AM CASA PM10 24 Good 5 5 µg/m3
1:00 AM CASA PM2.5 24 Good 10 3 µg/m3
1:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
1:00 AM CHAT O3 8 Good 31 37 PPB
1:00 AM CHAT PM2.5 24 Good 21 5 µg/m3
1:00 AM COMM PM2.5 24 Good 16 4 µg/m3
1:00 AM CTZ O3 8 Good 33 39 PPB
1:00 AM DELT PM2.5 24 Good 18 4 µg/m3
1:00 AM FTC O3 8 Good 20 24 PPB
1:00 AM FTCF PM10 24 Good 18 19 µg/m3
1:00 AM FTCW O3 8 Good 30 35 PPB
1:00 AM GJCT CO 8 Good 2 0.2 PPM
1:00 AM GJPB PM10 24 Good 3 3 µg/m3
1:00 AM GJPB PM2.5 24 Good 7 2 µg/m3
1:00 AM GREA CO 8 Good 2 0.2 PPM
1:00 AM GREH PM2.5 24 Good 26 6 µg/m3
1:00 AM GRET O3 8 Good 29 34 PPB
1:00 AM H24 CO 8 Good 3 0.3 PPM
1:00 AM I-25 CO 8 Good 3 0.3 PPM
1:00 AM I-25 NO2 1 Good 20 21 PPB
1:00 AM I-25 PM10 24 Good 14 15 µg/m3
1:00 AM I-25 PM2.5 24 Good 18 4 µg/m3
1:00 AM LNGM PM2.5 24 Good 30 7 µg/m3
1:00 AM MAN O3 8 Good 31 37 PPB
1:00 AM NJH PM2.5 24 Good 9 2 µg/m3
1:00 AM NREL O3 8 Good 34 40 PPB
1:00 AM PAL O3 8 Good 32 38 PPB
1:00 AM RFN O3 8 Good 36 43 PPB
1:00 AM RIFL PM2.5 24 Good 8 2 µg/m3
1:00 AM RIFLO3 O3 8 Good 22 26 PPB
1:00 AM SBC O3 8 Good 29 34 PPB
1:00 AM WBY CO 8 Good 3 0.3 PPM
1:00 AM WBY NO2 1 Good 22 23 PPB
1:00 AM WBY NO2 1 Good 22 23 PPB
1:00 AM WBY O3 8 Good 22 26 PPB
1:00 AM WBY PM10 24 Good 16 17 µg/m3
1:00 AM WCH O3 8 Good 29 34 PPB

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