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AQI Calculations on 04/18/2024 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.

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 32 35 PPB
1:00 AM ADB PM10 24 Good 27 29 µg/m3
1:00 AM ADB PM2.5 24 Good 18 4 µg/m3
1:00 AM ALA PM10 24 Good 22 24 µg/m3
1:00 AM ALA PM2.5 24 Good 16 4 µg/m3
1:00 AM ASPN O3 8 Good 35 38 PPB
1:00 AM ASPN2 PM10 24 Good 9 10 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 0 0 µg/m3
1:00 AM AURE O3 8 Good 35 38 PPB
1:00 AM BHWK O3 8 Good 34 37 PPB
1:00 AM BOU PM10 24 Good 13 14 µg/m3
1:00 AM BOU PM2.5 24 Good 11 3 µg/m3
1:00 AM BOUR O3 8 Good 32 35 PPB
1:00 AM CAMP O3 8 Good 33 36 PPB
1:00 AM CAMP PM10 24 Good 10 11 µg/m3
1:00 AM CAMP PM2.5 24 Good 13 3 µg/m3
1:00 AM CAN PM10 24 Good 17 18 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 13 14 PPB
1:00 AM CASA O3 8 Good 31 34 PPB
1:00 AM CASA PM10 24 Good 7 8 µg/m3
1:00 AM CASA PM2.5 24 Good 12 3 µg/m3
1:00 AM CCOL CO 8 Good 1 0.1 PPM
1:00 AM CCOL PM10 24 Good 16 17 µg/m3
1:00 AM CCOL PM2.5 24 Good 15 4 µg/m3
1:00 AM CHAT O3 8 Good 38 41 PPB
1:00 AM CHAT PM10 24 Good 9 10 µg/m3
1:00 AM CHAT PM2.5 24 Good 10 3 µg/m3
1:00 AM CTZ O3 8 Good 30 32 PPB
1:00 AM EVG O3 8 Good 35 38 PPB
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM FTC O3 8 Good 34 37 PPB
1:00 AM FTCF PM10 24 Good 10 11 µg/m3
1:00 AM FTCF PM2.5 24 Good 15 4 µg/m3
1:00 AM FTCW O3 8 Good 34 37 PPB
1:00 AM GJPB PM10 24 Good 13 14 µg/m3
1:00 AM GJPB PM2.5 24 Good 12 3 µg/m3
1:00 AM GREH PM10 24 Good 9 10 µg/m3
1:00 AM GREH PM2.5 24 Good 14 3 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 34 37 PPB
1:00 AM HLD O3 8 Good 31 33 PPB
1:00 AM I25DEN CO 8 Good 1 0.1 PPM
1:00 AM I25DEN NO2 1 Good 4 4 PPB
1:00 AM I25DEN PM10 24 Good 10 11 µg/m3
1:00 AM I25DEN PM2.5 24 Good 16 4 µg/m3
1:00 AM I25GLO NO2 1 Good 1 1 PPB
1:00 AM I25GLO PM10 24 Good 18 19 µg/m3
1:00 AM I25GLO PM2.5 24 Good 17 4 µg/m3
1:00 AM LAST NO2 1 Good 2 2 PPB
1:00 AM LAST O3 8 Good 35 38 PPB
1:00 AM LMB PM10 24 Good 39 42 µg/m3
1:00 AM LMB PM2.5 24 Good 18 4 µg/m3
1:00 AM LNGM PM10 24 Good 11 12 µg/m3
1:00 AM LNGM PM2.5 24 Good 12 3 µg/m3
1:00 AM MAN O3 8 Good 39 42 PPB
1:00 AM NJH PM10 24 Good 14 15 µg/m3
1:00 AM NJH PM2.5 24 Good 12 3 µg/m3
1:00 AM NREL O3 8 Good 33 36 PPB
1:00 AM PAG PM10 24 Good 20 22 µg/m3
1:00 AM PAL O3 8 Good 39 42 PPB
1:00 AM PFS PM10 24 Good 28 30 µg/m3
1:00 AM PFS PM2.5 24 Good 18 4 µg/m3
1:00 AM PWES O3 8 Good 38 41 PPB
1:00 AM RFN O3 8 Good 35 38 PPB
1:00 AM RIFLO3 O3 8 Good 35 38 PPB
1:00 AM SSMB PM10 24 Good 14 15 µg/m3
1:00 AM TEL PM10 24 Good 14 15 µg/m3
1:00 AM WBY NO2 1 Good 1 1 PPB
1:00 AM WBY NO2 1 Good 1 1 PPB
1:00 AM WBY O3 8 Good 35 38 PPB
1:00 AM WBY PM10 24 Good 21 23 µg/m3
2:00 AM ACAD O3 8 Good 31 33 PPB
2:00 AM ADB PM10 24 Good 26 28 µg/m3
2:00 AM ADB PM2.5 24 Good 17 4 µg/m3
2:00 AM ALA PM10 24 Good 21 23 µg/m3
2:00 AM ALA PM2.5 24 Good 15 4 µg/m3
2:00 AM ASPN O3 8 Good 34 37 PPB
2:00 AM ASPN2 PM10 24 Good 9 10 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 0 0 µg/m3
2:00 AM AURE O3 8 Good 34 37 PPB
2:00 AM BHWK O3 8 Good 31 34 PPB
2:00 AM BOU PM10 24 Good 13 14 µg/m3
2:00 AM BOU PM2.5 24 Good 11 3 µg/m3
2:00 AM BOUR O3 8 Good 31 34 PPB
2:00 AM CAMP O3 8 Good 33 36 PPB
2:00 AM CAMP PM10 24 Good 9 10 µg/m3
2:00 AM CAMP PM2.5 24 Good 13 3 µg/m3
2:00 AM CAN PM10 24 Good 18 19 µg/m3
2:00 AM CASA CO 8 Good 1 0.1 PPM
2:00 AM CASA NO2 1 Good 8 9 PPB
2:00 AM CASA O3 8 Good 31 33 PPB
2:00 AM CASA PM10 24 Good 7 8 µg/m3
2:00 AM CASA PM2.5 24 Good 12 3 µg/m3
2:00 AM CCOL CO 8 Good 1 0.1 PPM
2:00 AM CCOL PM10 24 Good 15 16 µg/m3
2:00 AM CCOL PM2.5 24 Good 15 4 µg/m3
2:00 AM CHAT O3 8 Good 36 39 PPB
2:00 AM CHAT PM10 24 Good 9 10 µg/m3
2:00 AM CHAT PM2.5 24 Good 10 3 µg/m3
2:00 AM CTZ O3 8 Good 26 28 PPB
2:00 AM EVG O3 8 Good 33 36 PPB
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM FTC O3 8 Good 35 38 PPB
2:00 AM FTCF PM10 24 Good 10 11 µg/m3
2:00 AM FTCF PM2.5 24 Good 15 4 µg/m3
2:00 AM FTCW O3 8 Good 34 37 PPB
2:00 AM GJPB PM10 24 Good 13 14 µg/m3
2:00 AM GJPB PM2.5 24 Good 13 3 µg/m3
2:00 AM GREH PM10 24 Good 8 9 µg/m3
2:00 AM GREH PM2.5 24 Good 13 3 µg/m3
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM GRET O3 8 Good 34 37 PPB
2:00 AM HLD O3 8 Good 29 31 PPB
2:00 AM I25DEN CO 8 Good 1 0.1 PPM
2:00 AM I25DEN NO2 1 Good 6 6 PPB
2:00 AM I25DEN PM10 24 Good 10 11 µg/m3
2:00 AM I25DEN PM2.5 24 Good 15 4 µg/m3
2:00 AM I25GLO NO2 1 Good 1 1 PPB
2:00 AM I25GLO PM10 24 Good 18 19 µg/m3
2:00 AM I25GLO PM2.5 24 Good 17 4 µg/m3
2:00 AM LAST NO2 1 Good 2 2 PPB
2:00 AM LAST O3 8 Good 35 38 PPB
2:00 AM LMB PM10 24 Good 42 45 µg/m3
2:00 AM LMB PM2.5 24 Good 19 5 µg/m3
2:00 AM LNGM PM10 24 Good 11 12 µg/m3
2:00 AM LNGM PM2.5 24 Good 12 3 µg/m3
2:00 AM MAN O3 8 Good 36 39 PPB
2:00 AM NJH PM10 24 Good 14 15 µg/m3
2:00 AM NJH PM2.5 24 Good 12 3 µg/m3
2:00 AM NREL O3 8 Good 32 35 PPB
2:00 AM PAG PM10 24 Good 21 23 µg/m3
2:00 AM PAL O3 8 Good 38 41 PPB
2:00 AM PFS PM10 24 Good 27 29 µg/m3
2:00 AM PFS PM2.5 24 Good 18 4 µg/m3
2:00 AM PWES O3 8 Good 36 39 PPB
2:00 AM RFN O3 8 Good 34 37 PPB
2:00 AM RIFLO3 O3 8 Good 34 37 PPB
2:00 AM SSMB PM10 24 Good 14 15 µg/m3
2:00 AM TEL PM10 24 Good 14 15 µg/m3
2:00 AM WBY NO2 1 Good 1 1 PPB
2:00 AM WBY NO2 1 Good 1 1 PPB
2:00 AM WBY O3 8 Good 35 38 PPB
2:00 AM WBY PM10 24 Good 21 23 µg/m3
3:00 AM ACAD O3 8 Good 29 31 PPB
3:00 AM ADB PM10 24 Good 26 28 µg/m3
3:00 AM ADB PM2.5 24 Good 17 4 µg/m3
3:00 AM ALA PM10 24 Good 21 23 µg/m3
3:00 AM ALA PM2.5 24 Good 15 4 µg/m3
3:00 AM ASPN O3 8 Good 34 37 PPB
3:00 AM ASPN2 PM10 24 Good 10 11 µg/m3
3:00 AM ASPN2 PM2.5 24 Good 0 0 µg/m3
3:00 AM AURE O3 8 Good 34 37 PPB
3:00 AM BHWK O3 8 Good 31 33 PPB
3:00 AM BOU PM10 24 Good 13 14 µg/m3
3:00 AM BOU PM2.5 24 Good 11 3 µg/m3
3:00 AM BOUR O3 8 Good 31 34 PPB
3:00 AM CAMP O3 8 Good 33 36 PPB
3:00 AM CAMP PM10 24 Good 9 10 µg/m3
3:00 AM CAMP PM2.5 24 Good 13 3 µg/m3
3:00 AM CAN PM10 24 Good 18 19 µg/m3
3:00 AM CASA CO 8 Good 1 0.1 PPM
3:00 AM CASA NO2 1 Good 8 9 PPB
3:00 AM CASA O3 8 Good 31 33 PPB
3:00 AM CASA PM10 24 Good 6 7 µg/m3
3:00 AM CASA PM2.5 24 Good 12 3 µg/m3
3:00 AM CCOL CO 8 Good 1 0.1 PPM
3:00 AM CCOL PM10 24 Good 15 16 µg/m3
3:00 AM CCOL PM2.5 24 Good 14 3 µg/m3
3:00 AM CHAT O3 8 Good 35 38 PPB
3:00 AM CHAT PM10 24 Good 8 9 µg/m3
3:00 AM CHAT PM2.5 24 Good 10 3 µg/m3
3:00 AM CTZ O3 8 Good 22 24 PPB
3:00 AM EVG O3 8 Good 33 36 PPB
3:00 AM FTC CO 8 Good 1 0.1 PPM
3:00 AM FTC O3 8 Good 35 38 PPB
3:00 AM FTCF PM10 24 Good 10 11 µg/m3
3:00 AM FTCF PM2.5 24 Good 15 4 µg/m3
3:00 AM FTCW O3 8 Good 35 38 PPB
3:00 AM GJPB PM10 24 Good 13 14 µg/m3
3:00 AM GJPB PM2.5 24 Good 12 3 µg/m3
3:00 AM GREH PM10 24 Good 8 9 µg/m3
3:00 AM GREH PM2.5 24 Good 12 3 µg/m3
3:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM GRET O3 8 Good 34 37 PPB
3:00 AM HLD O3 8 Good 29 31 PPB
3:00 AM I25DEN CO 8 Good 1 0.1 PPM
3:00 AM I25DEN NO2 1 Good 3 3 PPB
3:00 AM I25DEN PM10 24 Good 9 10 µg/m3
3:00 AM I25DEN PM2.5 24 Good 15 4 µg/m3
3:00 AM I25GLO NO2 1 Good 2 2 PPB
3:00 AM I25GLO PM10 24 Good 18 19 µg/m3
3:00 AM I25GLO PM2.5 24 Good 17 4 µg/m3
3:00 AM LAST NO2 1 Good 2 2 PPB
3:00 AM LAST O3 8 Good 35 38 PPB
3:00 AM LMB PM10 24 Good 43 46 µg/m3
3:00 AM LMB PM2.5 24 Good 19 5 µg/m3
3:00 AM LNGM PM10 24 Good 11 12 µg/m3
3:00 AM LNGM PM2.5 24 Good 12 3 µg/m3
3:00 AM MAN O3 8 Good 34 37 PPB
3:00 AM NJH PM10 24 Good 14 15 µg/m3
3:00 AM NJH PM2.5 24 Good 12 3 µg/m3
3:00 AM NREL O3 8 Good 33 36 PPB
3:00 AM PAG PM10 24 Good 21 23 µg/m3
3:00 AM PAL O3 8 Good 37 40 PPB
3:00 AM PFS PM10 24 Good 27 29 µg/m3
3:00 AM PFS PM2.5 24 Good 17 4 µg/m3
3:00 AM PWES O3 8 Good 34 37 PPB
3:00 AM RFN O3 8 Good 34 37 PPB
3:00 AM RIFLO3 O3 8 Good 33 36 PPB
3:00 AM SSMB PM10 24 Good 14 15 µg/m3
3:00 AM TEL PM10 24 Good 14 15 µg/m3
3:00 AM WBY NO2 1 Good 1 1 PPB
3:00 AM WBY NO2 1 Good 1 1 PPB
3:00 AM WBY O3 8 Good 35 38 PPB
3:00 AM WBY PM10 24 Good 20 22 µg/m3
4:00 AM ACAD O3 8 Good 29 31 PPB
4:00 AM ADB PM10 24 Good 27 29 µg/m3
4:00 AM ADB PM2.5 24 Good 17 4 µg/m3
4:00 AM ALA PM10 24 Good 22 24 µg/m3
4:00 AM ALA PM2.5 24 Good 15 4 µg/m3
4:00 AM ASPN O3 8 Good 34 37 PPB
4:00 AM ASPN2 PM10 24 Good 10 11 µg/m3
4:00 AM ASPN2 PM2.5 24 Good 0 0 µg/m3
4:00 AM AURE O3 8 Good 34 37 PPB
4:00 AM BHWK O3 8 Good 31 33 PPB
4:00 AM BOU PM10 24 Good 13 14 µg/m3
4:00 AM BOU PM2.5 24 Good 11 3 µg/m3
4:00 AM BOUR O3 8 Good 32 35 PPB
4:00 AM CAMP O3 8 Good 33 36 PPB
4:00 AM CAMP PM10 24 Good 9 10 µg/m3
4:00 AM CAMP PM2.5 24 Good 13 3 µg/m3
4:00 AM CAN PM10 24 Good 18 19 µg/m3
4:00 AM CASA CO 8 Good 1 0.1 PPM
4:00 AM CASA NO2 1 Good 10 11 PPB
4:00 AM CASA O3 8 Good 31 33 PPB
4:00 AM CASA PM10 24 Good 6 7 µg/m3
4:00 AM CASA PM2.5 24 Good 12 3 µg/m3
4:00 AM CCOL CO 8 Good 1 0.1 PPM
4:00 AM CCOL PM10 24 Good 15 16 µg/m3
4:00 AM CCOL PM2.5 24 Good 13 3 µg/m3
4:00 AM CHAT O3 8 Good 35 38 PPB
4:00 AM CHAT PM10 24 Good 8 9 µg/m3
4:00 AM CHAT PM2.5 24 Good 10 2 µg/m3
4:00 AM CTZ O3 8 Good 19 21 PPB
4:00 AM EVG O3 8 Good 33 36 PPB
4:00 AM FTC CO 8 Good 1 0.1 PPM
4:00 AM FTC O3 8 Good 34 37 PPB
4:00 AM FTCF PM10 24 Good 9 10 µg/m3
4:00 AM FTCF PM2.5 24 Good 15 4 µg/m3
4:00 AM FTCW O3 8 Good 34 37 PPB
4:00 AM GJPB PM10 24 Good 13 14 µg/m3
4:00 AM GJPB PM2.5 24 Good 12 3 µg/m3
4:00 AM GREH PM10 24 Good 8 9 µg/m3
4:00 AM GREH PM2.5 24 Good 12 3 µg/m3
4:00 AM GRET CO 8 Good 1 0.1 PPM
4:00 AM GRET O3 8 Good 34 37 PPB
4:00 AM HLD O3 8 Good 28 30 PPB
4:00 AM I25DEN CO 8 Good 1 0.1 PPM
4:00 AM I25DEN NO2 1 Good 2 2 PPB
4:00 AM I25DEN PM10 24 Good 9 10 µg/m3
4:00 AM I25DEN PM2.5 24 Good 15 4 µg/m3
4:00 AM I25GLO NO2 1 Good 3 3 PPB
4:00 AM I25GLO PM10 24 Good 17 18 µg/m3
4:00 AM I25GLO PM2.5 24 Good 16 4 µg/m3
4:00 AM LAST NO2 1 Good 2 2 PPB
4:00 AM LAST O3 8 Good 35 38 PPB
4:00 AM LMB PM10 24 Good 44 47 µg/m3
4:00 AM LMB PM2.5 24 Good 19 5 µg/m3
4:00 AM LNGM PM10 24 Good 11 12 µg/m3
4:00 AM LNGM PM2.5 24 Good 12 3 µg/m3
4:00 AM MAN O3 8 Good 32 35 PPB
4:00 AM NJH PM10 24 Good 14 15 µg/m3
4:00 AM NJH PM2.5 24 Good 12 3 µg/m3
4:00 AM NREL O3 8 Good 33 36 PPB
4:00 AM PAG PM10 24 Good 21 23 µg/m3
4:00 AM PAL O3 8 Good 36 39 PPB
4:00 AM PFS PM10 24 Good 27 29 µg/m3
4:00 AM PFS PM2.5 24 Good 17 4 µg/m3
4:00 AM PWES O3 8 Good 33 36 PPB
4:00 AM RFN O3 8 Good 34 37 PPB
4:00 AM RIFLO3 O3 8 Good 32 35 PPB
4:00 AM SSMB PM10 24 Good 14 15 µg/m3
4:00 AM TEL PM10 24 Good 14 15 µg/m3
4:00 AM WBY O3 8 Good 36 39 PPB
4:00 AM WBY PM10 24 Good 20 22 µg/m3

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