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AQI Calculations on 04/25/2024 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.
4:00 AM WBY NO2 1 Good 4 4 PPB
4:00 AM WBY NO2 1 Good 4 4 PPB
4:00 AM WBY O3 8 Good 39 42 PPB
4:00 AM WBY PM10 24 Good 32 35 µg/m3
3:00 AM WBY NO2 1 Good 3 3 PPB
3:00 AM WBY NO2 1 Good 3 3 PPB
3:00 AM WBY O3 8 Good 42 45 PPB
3:00 AM WBY PM10 24 Good 32 35 µg/m3
2:00 AM WBY NO2 1 Good 4 4 PPB
2:00 AM WBY NO2 1 Good 4 4 PPB
2:00 AM WBY O3 8 Good 44 48 PPB
2:00 AM WBY PM10 24 Good 31 34 µg/m3
1:00 AM WBY NO2 1 Good 4 4 PPB
1:00 AM WBY NO2 1 Good 4 4 PPB
1:00 AM WBY O3 8 Good 48 52 PPB
1:00 AM WBY PM10 24 Good 31 34 µg/m3
4:00 AM TEL PM10 24 Good 18 19 µg/m3
3:00 AM TEL PM10 24 Good 18 19 µg/m3
2:00 AM TEL PM10 24 Good 18 19 µg/m3
1:00 AM TEL PM10 24 Good 18 19 µg/m3
4:00 AM SSMB PM10 24 Good 11 12 µg/m3
3:00 AM SSMB PM10 24 Good 11 12 µg/m3
2:00 AM SSMB PM10 24 Good 11 12 µg/m3
1:00 AM SSMB PM10 24 Good 11 12 µg/m3
4:00 AM RIFLO3 O3 8 Good 25 27 PPB
3:00 AM RIFLO3 O3 8 Good 28 30 PPB
2:00 AM RIFLO3 O3 8 Good 31 33 PPB
1:00 AM RIFLO3 O3 8 Good 33 36 PPB
4:00 AM RFN NO2 1 Good 1 1 PPB
4:00 AM RFN O3 8 Good 43 46 PPB
3:00 AM RFN NO2 1 Good 1 1 PPB
3:00 AM RFN O3 8 Good 46 50 PPB
2:00 AM RFN NO2 1 Good 1 1 PPB
2:00 AM RFN O3 8 Good 49 53 PPB
1:00 AM RFN NO2 1 Good 2 2 PPB
1:00 AM RFN O3 8 Moderate 54 56 PPB
4:00 AM PWES O3 8 Good 31 33 PPB
3:00 AM PWES O3 8 Good 33 36 PPB
2:00 AM PWES O3 8 Good 35 38 PPB
1:00 AM PWES O3 8 Good 38 41 PPB
4:00 AM PFS PM10 24 Good 30 32 µg/m3
4:00 AM PFS PM2.5 24 Good 25 6 µg/m3
3:00 AM PFS PM10 24 Good 29 31 µg/m3
3:00 AM PFS PM2.5 24 Good 25 6 µg/m3
2:00 AM PFS PM10 24 Good 29 31 µg/m3
2:00 AM PFS PM2.5 24 Good 23 6 µg/m3
1:00 AM PFS PM10 24 Good 29 31 µg/m3
1:00 AM PFS PM2.5 24 Good 22 5 µg/m3
4:00 AM PAL O3 8 Good 46 50 PPB
3:00 AM PAL O3 8 Good 45 49 PPB
2:00 AM PAL O3 8 Good 46 50 PPB
1:00 AM PAL O3 8 Good 46 50 PPB
4:00 AM PAG PM10 24 Good 27 29 µg/m3
3:00 AM PAG PM10 24 Good 26 28 µg/m3
2:00 AM PAG PM10 24 Good 26 28 µg/m3
1:00 AM PAG PM10 24 Good 26 28 µg/m3
4:00 AM NREL O3 8 Good 41 44 PPB
3:00 AM NREL O3 8 Good 44 48 PPB
2:00 AM NREL O3 8 Good 47 51 PPB
1:00 AM NREL O3 8 Moderate 51 55 PPB
4:00 AM NJH PM10 24 Good 29 31 µg/m3
4:00 AM NJH PM2.5 24 Good 23 6 µg/m3
3:00 AM NJH PM10 24 Good 28 30 µg/m3
3:00 AM NJH PM2.5 24 Good 22 5 µg/m3
2:00 AM NJH PM10 24 Good 28 30 µg/m3
2:00 AM NJH PM2.5 24 Good 22 5 µg/m3
1:00 AM NJH PM10 24 Good 27 29 µg/m3
1:00 AM NJH PM2.5 24 Good 22 5 µg/m3
4:00 AM MAN O3 8 Good 39 42 PPB
3:00 AM MAN O3 8 Good 39 42 PPB
2:00 AM MAN O3 8 Good 40 43 PPB
1:00 AM MAN O3 8 Good 43 46 PPB
4:00 AM LNGM PM10 24 Good 28 30 µg/m3
4:00 AM LNGM PM2.5 24 Good 34 8 µg/m3
3:00 AM LNGM PM10 24 Good 27 29 µg/m3
3:00 AM LNGM PM2.5 24 Good 33 8 µg/m3
2:00 AM LNGM PM10 24 Good 26 28 µg/m3
2:00 AM LNGM PM2.5 24 Good 32 8 µg/m3
1:00 AM LNGM PM10 24 Good 25 27 µg/m3
1:00 AM LNGM PM2.5 24 Good 32 8 µg/m3
4:00 AM LMB PM10 24 Good 28 30 µg/m3
4:00 AM LMB PM2.5 24 Good 28 7 µg/m3
3:00 AM LMB PM10 24 Good 28 30 µg/m3
3:00 AM LMB PM2.5 24 Good 27 7 µg/m3
2:00 AM LMB PM10 24 Good 28 30 µg/m3
2:00 AM LMB PM2.5 24 Good 27 6 µg/m3
1:00 AM LMB PM10 24 Good 28 30 µg/m3
1:00 AM LMB PM2.5 24 Good 26 6 µg/m3
4:00 AM LAST NO2 1 Good 4 4 PPB
4:00 AM LAST O3 8 Good 22 24 PPB
3:00 AM LAST NO2 1 Good 3 3 PPB
3:00 AM LAST O3 8 Good 25 27 PPB
2:00 AM LAST NO2 1 Good 5 5 PPB
2:00 AM LAST O3 8 Good 28 30 PPB
1:00 AM LAST NO2 1 Good 6 6 PPB
1:00 AM LAST O3 8 Good 32 35 PPB
4:00 AM I25GLO NO2 1 Good 15 16 PPB
4:00 AM I25GLO PM10 24 Good 31 33 µg/m3
4:00 AM I25GLO PM2.5 24 Good 35 8 µg/m3
3:00 AM I25GLO NO2 1 Good 8 9 PPB
3:00 AM I25GLO PM10 24 Good 31 33 µg/m3
3:00 AM I25GLO PM2.5 24 Good 34 8 µg/m3
2:00 AM I25GLO NO2 1 Good 11 12 PPB
2:00 AM I25GLO PM10 24 Good 31 33 µg/m3
2:00 AM I25GLO PM2.5 24 Good 34 8 µg/m3
1:00 AM I25GLO NO2 1 Good 18 19 PPB
1:00 AM I25GLO PM10 24 Good 31 33 µg/m3
1:00 AM I25GLO PM2.5 24 Good 34 8 µg/m3
4:00 AM I25DEN CO 8 Good 3 0.3 PPM
4:00 AM I25DEN NO2 1 Good 10 11 PPB
4:00 AM I25DEN PM10 24 Good 19 21 µg/m3
4:00 AM I25DEN PM2.5 24 Good 35 8 µg/m3
3:00 AM I25DEN CO 8 Good 3 0.3 PPM
3:00 AM I25DEN NO2 1 Good 7 7 PPB
3:00 AM I25DEN PM10 24 Good 19 21 µg/m3
3:00 AM I25DEN PM2.5 24 Good 34 8 µg/m3
2:00 AM I25DEN CO 8 Good 3 0.3 PPM
2:00 AM I25DEN NO2 1 Good 8 9 PPB
2:00 AM I25DEN PM10 24 Good 19 21 µg/m3
2:00 AM I25DEN PM2.5 24 Good 34 8 µg/m3
1:00 AM I25DEN CO 8 Good 5 0.4 PPM
1:00 AM I25DEN NO2 1 Good 23 24 PPB
1:00 AM I25DEN PM10 24 Good 19 20 µg/m3
1:00 AM I25DEN PM2.5 24 Good 34 8 µg/m3
4:00 AM HLD O3 8 Good 31 34 PPB
3:00 AM HLD O3 8 Good 35 38 PPB
2:00 AM HLD O3 8 Good 38 41 PPB
1:00 AM HLD O3 8 Good 40 43 PPB
4:00 AM GRET CO 8 Good 1 0.1 PPM
4:00 AM GRET O3 8 Good 28 30 PPB
3:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM GRET O3 8 Good 30 32 PPB
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM GRET O3 8 Good 32 35 PPB
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 35 38 PPB
4:00 AM GREH PM10 24 Good 18 19 µg/m3
4:00 AM GREH PM2.5 24 Good 29 7 µg/m3
3:00 AM GREH PM10 24 Good 18 19 µg/m3
3:00 AM GREH PM2.5 24 Good 28 7 µg/m3
2:00 AM GREH PM10 24 Good 18 19 µg/m3
2:00 AM GREH PM2.5 24 Good 27 7 µg/m3
1:00 AM GREH PM10 24 Good 18 19 µg/m3
1:00 AM GREH PM2.5 24 Good 26 6 µg/m3
4:00 AM GJPB PM10 24 Good 15 16 µg/m3
4:00 AM GJPB PM2.5 24 Good 15 4 µg/m3
3:00 AM GJPB PM10 24 Good 15 16 µg/m3
3:00 AM GJPB PM2.5 24 Good 15 4 µg/m3
2:00 AM GJPB PM10 24 Good 15 16 µg/m3
2:00 AM GJPB PM2.5 24 Good 15 4 µg/m3
1:00 AM GJPB PM10 24 Good 15 16 µg/m3
1:00 AM GJPB PM2.5 24 Good 15 4 µg/m3
4:00 AM FTCW O3 8 Good 33 36 PPB
3:00 AM FTCW O3 8 Good 35 38 PPB
2:00 AM FTCW O3 8 Good 37 40 PPB
1:00 AM FTCW O3 8 Good 40 43 PPB
4:00 AM FTCF PM10 24 Good 17 18 µg/m3
4:00 AM FTCF PM2.5 24 Good 27 6 µg/m3
3:00 AM FTCF PM10 24 Good 17 18 µg/m3
3:00 AM FTCF PM2.5 24 Good 26 6 µg/m3
2:00 AM FTCF PM10 24 Good 16 17 µg/m3
2:00 AM FTCF PM2.5 24 Good 25 6 µg/m3
1:00 AM FTCF PM10 24 Good 16 17 µg/m3
1:00 AM FTCF PM2.5 24 Good 25 6 µg/m3
4:00 AM FTC CO 8 Good 1 0.1 PPM
4:00 AM FTC O3 8 Good 35 38 PPB
3:00 AM FTC CO 8 Good 1 0.1 PPM
3:00 AM FTC O3 8 Good 35 38 PPB
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM FTC O3 8 Good 37 40 PPB
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM FTC O3 8 Good 40 43 PPB
4:00 AM EVG O3 8 Good 36 39 PPB
3:00 AM EVG O3 8 Good 38 41 PPB
2:00 AM EVG O3 8 Good 40 43 PPB
1:00 AM EVG O3 8 Good 43 46 PPB
4:00 AM CTZ O3 8 Good 44 47 PPB
3:00 AM CTZ O3 8 Good 44 48 PPB
2:00 AM CTZ O3 8 Good 44 48 PPB
1:00 AM CTZ O3 8 Good 45 49 PPB
4:00 AM CHAT O3 8 Good 39 42 PPB
4:00 AM CHAT PM10 24 Good 22 24 µg/m3
4:00 AM CHAT PM2.5 24 Good 22 5 µg/m3
3:00 AM CHAT O3 8 Good 43 46 PPB
3:00 AM CHAT PM10 24 Good 21 23 µg/m3
3:00 AM CHAT PM2.5 24 Good 21 5 µg/m3
2:00 AM CHAT O3 8 Good 45 49 PPB
2:00 AM CHAT PM10 24 Good 21 23 µg/m3
2:00 AM CHAT PM2.5 24 Good 21 5 µg/m3
1:00 AM CHAT O3 8 Good 48 52 PPB
1:00 AM CHAT PM10 24 Good 21 23 µg/m3
1:00 AM CHAT PM2.5 24 Good 21 5 µg/m3
4:00 AM CCOL CO 8 Good 2 0.2 PPM
4:00 AM CCOL PM2.5 24 Good 38 9 µg/m3
3:00 AM CCOL CO 8 Good 2 0.2 PPM
3:00 AM CCOL PM2.5 24 Good 36 9 µg/m3
2:00 AM CCOL CO 8 Good 2 0.2 PPM
2:00 AM CCOL PM2.5 24 Good 34 8 µg/m3
1:00 AM CCOL CO 8 Good 1 0.1 PPM
1:00 AM CCOL PM2.5 24 Good 32 8 µg/m3
4:00 AM CASA CO 8 Good 1 0.1 PPM
4:00 AM CASA NO2 1 Good 3 3 PPB
4:00 AM CASA O3 8 Good 37 40 PPB
4:00 AM CASA PM10 24 Good 12 13 µg/m3
4:00 AM CASA PM2.5 24 Good 22 5 µg/m3
3:00 AM CASA CO 8 Good 2 0.2 PPM
3:00 AM CASA NO2 1 Good 5 5 PPB
3:00 AM CASA O3 8 Good 40 43 PPB
3:00 AM CASA PM10 24 Good 12 13 µg/m3
3:00 AM CASA PM2.5 24 Good 22 5 µg/m3
2:00 AM CASA CO 8 Good 2 0.2 PPM
2:00 AM CASA NO2 1 Good 3 3 PPB
2:00 AM CASA O3 8 Good 43 46 PPB
2:00 AM CASA PM10 24 Good 12 13 µg/m3
2:00 AM CASA PM2.5 24 Good 22 5 µg/m3
1:00 AM CASA CO 8 Good 2 0.2 PPM
1:00 AM CASA NO2 1 Good 8 8 PPB
1:00 AM CASA O3 8 Good 45 49 PPB
1:00 AM CASA PM10 24 Good 11 12 µg/m3
1:00 AM CASA PM2.5 24 Good 22 5 µg/m3
4:00 AM CAN PM10 24 Good 27 29 µg/m3
3:00 AM CAN PM10 24 Good 27 29 µg/m3
2:00 AM CAN PM10 24 Good 27 29 µg/m3
1:00 AM CAN PM10 24 Good 28 30 µg/m3
4:00 AM CAMP NO2 1 Good 8 8 PPB
4:00 AM CAMP NO2 1 Good 8 8 PPB
4:00 AM CAMP O3 8 Good 32 35 PPB
4:00 AM CAMP PM10 24 Good 18 19 µg/m3
4:00 AM CAMP PM2.5 24 Good 28 7 µg/m3
3:00 AM CAMP NO2 1 Good 11 12 PPB
3:00 AM CAMP NO2 1 Good 11 12 PPB
3:00 AM CAMP O3 8 Good 33 36 PPB
3:00 AM CAMP PM10 24 Good 18 19 µg/m3
3:00 AM CAMP PM2.5 24 Good 27 7 µg/m3
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 36 39 PPB
2:00 AM CAMP PM10 24 Good 17 18 µg/m3
2:00 AM CAMP PM2.5 24 Good 27 6 µg/m3
1:00 AM CAMP NO2 1 Good 12 13 PPB
1:00 AM CAMP NO2 1 Good 12 13 PPB
1:00 AM CAMP O3 8 Good 40 43 PPB
1:00 AM CAMP PM10 24 Good 17 18 µg/m3
1:00 AM CAMP PM2.5 24 Good 27 6 µg/m3
4:00 AM BOUR O3 8 Good 31 34 PPB
3:00 AM BOUR O3 8 Good 32 35 PPB
2:00 AM BOUR O3 8 Good 35 38 PPB
1:00 AM BOUR O3 8 Good 38 41 PPB
4:00 AM BOU PM10 24 Good 25 27 µg/m3
4:00 AM BOU PM2.5 24 Good 29 7 µg/m3
3:00 AM BOU PM10 24 Good 24 26 µg/m3
3:00 AM BOU PM2.5 24 Good 29 7 µg/m3
2:00 AM BOU PM10 24 Good 24 26 µg/m3
2:00 AM BOU PM2.5 24 Good 28 7 µg/m3
1:00 AM BOU PM10 24 Good 23 25 µg/m3
1:00 AM BOU PM2.5 24 Good 28 7 µg/m3
4:00 AM BHWK O3 8 Good 49 53 PPB
3:00 AM BHWK O3 8 Good 50 54 PPB
2:00 AM BHWK O3 8 Moderate 51 55 PPB
1:00 AM BHWK O3 8 Moderate 54 56 PPB
4:00 AM AURE O3 8 Good 31 34 PPB
3:00 AM AURE O3 8 Good 34 37 PPB
2:00 AM AURE O3 8 Good 37 40 PPB
1:00 AM AURE O3 8 Good 39 42 PPB
4:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
4:00 AM ASPN2 PM2.5 24 Good 1 0 µg/m3
3:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
3:00 AM ASPN2 PM2.5 24 Good 1 0 µg/m3
2:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 1 0 µg/m3
1:00 AM ASPN2 PM10 24 Good 14 15 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 1 0 µg/m3
4:00 AM ASPN O3 8 Good 43 46 PPB
3:00 AM ASPN O3 8 Good 44 47 PPB
2:00 AM ASPN O3 8 Good 44 47 PPB
1:00 AM ASPN O3 8 Good 44 48 PPB
4:00 AM ALA PM10 24 Good 21 23 µg/m3
4:00 AM ALA PM2.5 24 Good 15 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
2:00 AM ALA PM10 24 Good 21 23 µg/m3
2:00 AM ALA PM2.5 24 Good 15 4 µg/m3
1:00 AM ALA PM10 24 Good 21 23 µg/m3
1:00 AM ALA PM2.5 24 Good 15 4 µg/m3
4:00 AM ADB PM10 24 Good 36 39 µg/m3
4:00 AM ADB PM2.5 24 Good 27 7 µg/m3
3:00 AM ADB PM10 24 Good 36 39 µg/m3
3:00 AM ADB PM2.5 24 Good 28 7 µg/m3
2:00 AM ADB PM10 24 Good 35 38 µg/m3
2:00 AM ADB PM2.5 24 Good 27 7 µg/m3
1:00 AM ADB PM10 24 Good 34 37 µg/m3
1:00 AM ADB PM2.5 24 Good 27 6 µg/m3
4:00 AM ACAD O3 8 Good 26 28 PPB
3:00 AM ACAD O3 8 Good 28 30 PPB
2:00 AM ACAD O3 8 Good 31 33 PPB
1:00 AM ACAD O3 8 Good 32 35 PPB

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