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AQI Calculations on 05/21/2026 1:00AM - 7:00AM

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 no 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.
7:00 AM ACAD O3 8 Good 22 24 PPB
7:00 AM ACC PM10 24 Good 6 6 µg/m3
7:00 AM ACC PM2.5 24 Good 23 4 µg/m3
7:00 AM ADB PM10 24 Good 19 20 µg/m3
7:00 AM ADB PM2.5 24 Good 38 6 µg/m3
7:00 AM ALA PM10 24 Good 22 24 µg/m3
7:00 AM ALA PM2.5 24 Good 24 4 µg/m3
7:00 AM ASPN O3 8 Good 39 42 PPB
7:00 AM ASPN2 PM10 24 Good 9 10 µg/m3
7:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
7:00 AM AURE O3 8 Good 32 35 PPB
7:00 AM BHWK O3 8 Good 34 37 PPB
7:00 AM BOU PM10 24 Good 6 6 µg/m3
7:00 AM BOU PM2.5 24 Good 14 2 µg/m3
7:00 AM BOUR O3 8 Good 18 19 PPB
7:00 AM CAMP NO2 1 Good 21 22 PPB
7:00 AM CAMP NO2 1 Good 21 22 PPB
7:00 AM CAMP O3 8 Good 23 25 PPB
7:00 AM CAMP PM10 24 Good 7 8 µg/m3
7:00 AM CAMP PM2.5 24 Good 30 5 µg/m3
7:00 AM CAMP SO2 1 Good 1 1 PPB
7:00 AM CAMP SO2 1 Good 1 1 PPB
7:00 AM CAN PM10 24 Good 15 16 µg/m3
7:00 AM CAN PM2.5 24 Good 28 5 µg/m3
7:00 AM CASA CO 8 Good 1 0.1 PPM
7:00 AM CASA NO2 1 Good 19 20 PPB
7:00 AM CASA O3 8 Good 19 21 PPB
7:00 AM CASA PM2.5 24 Good 27 4 µg/m3
7:00 AM CCOL PM10 24 Good 17 18 µg/m3
7:00 AM CCOL PM2.5 24 Good 34 6 µg/m3
7:00 AM CHAT O3 8 Good 22 24 PPB
7:00 AM CHAT PM10 24 Good 6 7 µg/m3
7:00 AM CHAT PM2.5 24 Good 18 3 µg/m3
7:00 AM CTZ O3 8 Good 31 34 PPB
7:00 AM DELT PM10 24 Good 12 13 µg/m3
7:00 AM DELT PM2.5 24 Good 14 2 µg/m3
7:00 AM DELT PM2.5 24 Good 14 2 µg/m3
7:00 AM EVG O3 8 Good 11 12 PPB
7:00 AM FOS NO2 1 Good 6 6 PPB
7:00 AM FOS O3 8 Good 20 22 PPB
7:00 AM FTC CO 8 Good 1 0.1 PPM
7:00 AM FTC O3 8 Good 17 18 PPB
7:00 AM FTCF PM10 24 Good 5 5 µg/m3
7:00 AM FTCF PM2.5 24 Good 20 3 µg/m3
7:00 AM FTCW O3 8 Good 19 20 PPB
7:00 AM GJPB PM10 24 Good 4 4 µg/m3
7:00 AM GJPB PM2.5 24 Good 11 2 µg/m3
7:00 AM GREH PM10 24 Good 7 8 µg/m3
7:00 AM GREH PM2.5 24 Good 26 4 µg/m3
7:00 AM GRET CO 8 Good 1 0.1 PPM
7:00 AM GRET O3 8 Good 23 25 PPB
7:00 AM HLD O3 8 Good 29 31 PPB
7:00 AM I25DEN CO 8 Good 3 0.3 PPM
7:00 AM I25DEN NO2 1 Good 20 21 PPB
7:00 AM I25DEN PM10 24 Good 16 17 µg/m3
7:00 AM I25DEN PM2.5 24 Good 32 5 µg/m3
7:00 AM I25GLO NO2 1 Good 28 30 PPB
7:00 AM I25GLO PM10 24 Good 20 22 µg/m3
7:00 AM I25GLO PM2.5 24 Good 32 5 µg/m3
7:00 AM LAST NO2 1 Good 5 5 PPB
7:00 AM LAST O3 8 Good 24 26 PPB
7:00 AM LMB PM10 24 Good 21 23 µg/m3
7:00 AM LMB PM2.5 24 Good 28 5 µg/m3
7:00 AM LNGM PM10 24 Good 10 11 µg/m3
7:00 AM LNGM PM2.5 24 Good 29 5 µg/m3
7:00 AM MAN O3 8 Good 22 24 PPB
7:00 AM MFP NO2 1 Good 4 4 PPB
7:00 AM MFP O3 8 Good 21 23 PPB
7:00 AM NJH PM10 24 Good 11 12 µg/m3
7:00 AM NJH PM2.5 24 Good 27 4 µg/m3
7:00 AM NREL O3 8 Good 30 32 PPB
7:00 AM PAG PM10 24 Good 22 24 µg/m3
7:00 AM PAG PM2.5 24 Good 19 3 µg/m3
7:00 AM PAL O3 8 Good 35 38 PPB
7:00 AM PFS PM10 24 Good 14 15 µg/m3
7:00 AM PFS PM2.5 24 Good 24 4 µg/m3
7:00 AM PMS PM2.5 24 Good 23 4 µg/m3
7:00 AM PWES O3 8 Good 31 33 PPB
7:00 AM RFN NO2 1 Good 2 2 PPB
7:00 AM RFN O3 8 Good 32 35 PPB
7:00 AM RIFLO3 O3 8 Good 25 27 PPB
7:00 AM SSMB PM10 24 Good 6 6 µg/m3
7:00 AM SSMB PM2.5 24 Good 12 2 µg/m3
7:00 AM TEL PM10 24 Good 15 16 µg/m3
7:00 AM TEL PM2.5 24 Good 22 4 µg/m3
7:00 AM TIM NO2 1 Good 5 5 PPB
7:00 AM TIM O3 8 Good 20 22 PPB
7:00 AM TIM PM10 24 Good 8 9 µg/m3
7:00 AM TIM PM2.5 24 Good 23 4 µg/m3
7:00 AM WBY NO2 1 Good 22 23 PPB
7:00 AM WBY NO2 1 Good 22 23 PPB
7:00 AM WBY O3 8 Good 19 21 PPB
7:00 AM WBY PM10 24 Good 15 16 µg/m3
7:00 AM WBY PM2.5 24 Good 31 5 µg/m3
6:00 AM ACAD O3 8 Good 23 25 PPB
6:00 AM ACC PM10 24 Good 5 5 µg/m3
6:00 AM ACC PM2.5 24 Good 22 4 µg/m3
6:00 AM ADB PM10 24 Good 18 19 µg/m3
6:00 AM ADB PM2.5 24 Good 37 6 µg/m3
6:00 AM ALA PM10 24 Good 23 25 µg/m3
6:00 AM ALA PM2.5 24 Good 24 4 µg/m3
6:00 AM ASPN O3 8 Good 39 42 PPB
6:00 AM ASPN2 PM10 24 Good 9 10 µg/m3
6:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
6:00 AM AURE O3 8 Good 34 37 PPB
6:00 AM BHWK O3 8 Good 31 34 PPB
6:00 AM BOU PM10 24 Good 5 5 µg/m3
6:00 AM BOU PM2.5 24 Good 13 2 µg/m3
6:00 AM BOUR O3 8 Good 19 20 PPB
6:00 AM CAMP NO2 1 Good 20 21 PPB
6:00 AM CAMP NO2 1 Good 20 21 PPB
6:00 AM CAMP O3 8 Good 27 29 PPB
6:00 AM CAMP PM10 24 Good 6 7 µg/m3
6:00 AM CAMP PM2.5 24 Good 29 5 µg/m3
6:00 AM CAN PM10 24 Good 15 16 µg/m3
6:00 AM CAN PM2.5 24 Good 27 4 µg/m3
6:00 AM CASA CO 8 Good 1 0.1 PPM
6:00 AM CASA NO2 1 Good 17 18 PPB
6:00 AM CASA O3 8 Good 23 25 PPB
6:00 AM CASA PM2.5 24 Good 26 4 µg/m3
6:00 AM CCOL PM10 24 Good 17 18 µg/m3
6:00 AM CCOL PM2.5 24 Good 33 6 µg/m3
6:00 AM CHAT O3 8 Good 23 25 PPB
6:00 AM CHAT PM10 24 Good 6 6 µg/m3
6:00 AM CHAT PM2.5 24 Good 17 3 µg/m3
6:00 AM CTZ O3 8 Good 33 36 PPB
6:00 AM DELT PM10 24 Good 12 13 µg/m3
6:00 AM DELT PM2.5 24 Good 15 2 µg/m3
6:00 AM DELT PM2.5 24 Good 15 2 µg/m3
6:00 AM EVG O3 8 Good 10 11 PPB
6:00 AM FOS NO2 1 Good 8 9 PPB
6:00 AM FOS O3 8 Good 20 22 PPB
6:00 AM FTC CO 8 Good 1 0.1 PPM
6:00 AM FTC O3 8 Good 18 19 PPB
6:00 AM FTCF PM10 24 Good 4 4 µg/m3
6:00 AM FTCF PM2.5 24 Good 18 3 µg/m3
6:00 AM FTCW O3 8 Good 19 20 PPB
6:00 AM GJPB PM10 24 Good 5 5 µg/m3
6:00 AM GJPB PM2.5 24 Good 11 2 µg/m3
6:00 AM GREH PM10 24 Good 6 7 µg/m3
6:00 AM GREH PM2.5 24 Good 24 4 µg/m3
6:00 AM GRET CO 8 Good 1 0.1 PPM
6:00 AM GRET O3 8 Good 25 27 PPB
6:00 AM HLD O3 8 Good 31 33 PPB
6:00 AM I25DEN CO 8 Good 2 0.2 PPM
6:00 AM I25DEN NO2 1 Good 23 24 PPB
6:00 AM I25DEN PM10 24 Good 15 16 µg/m3
6:00 AM I25DEN PM2.5 24 Good 30 5 µg/m3
6:00 AM I25GLO NO2 1 Good 28 30 PPB
6:00 AM I25GLO PM10 24 Good 19 21 µg/m3
6:00 AM I25GLO PM2.5 24 Good 32 5 µg/m3
6:00 AM LAST NO2 1 Good 4 4 PPB
6:00 AM LAST O3 8 Good 24 26 PPB
6:00 AM LMB PM10 24 Good 21 23 µg/m3
6:00 AM LMB PM2.5 24 Good 27 4 µg/m3
6:00 AM LNGM PM10 24 Good 9 10 µg/m3
6:00 AM LNGM PM2.5 24 Good 28 5 µg/m3
6:00 AM MAN O3 8 Good 23 25 PPB
6:00 AM MFP NO2 1 Good 4 4 PPB
6:00 AM MFP O3 8 Good 22 24 PPB
6:00 AM NJH PM10 24 Good 10 11 µg/m3
6:00 AM NJH PM2.5 24 Good 26 4 µg/m3
6:00 AM NREL O3 8 Good 30 32 PPB
6:00 AM PAG PM10 24 Good 23 25 µg/m3
6:00 AM PAG PM2.5 24 Good 20 3 µg/m3
6:00 AM PAL O3 8 Good 37 40 PPB
6:00 AM PFS PM10 24 Good 14 15 µg/m3
6:00 AM PFS PM2.5 24 Good 24 4 µg/m3
6:00 AM PMS PM2.5 24 Good 22 4 µg/m3
6:00 AM PWES O3 8 Good 32 35 PPB
6:00 AM RFN NO2 1 Good 1 1 PPB
6:00 AM RFN O3 8 Good 32 35 PPB
6:00 AM RIFLO3 O3 8 Good 27 29 PPB
6:00 AM SSMB PM10 24 Good 6 6 µg/m3
6:00 AM SSMB PM2.5 24 Good 12 2 µg/m3
6:00 AM TEL PM10 24 Good 15 16 µg/m3
6:00 AM TEL PM2.5 24 Good 22 3 µg/m3
6:00 AM TIM NO2 1 Good 6 6 PPB
6:00 AM TIM O3 8 Good 21 23 PPB
6:00 AM TIM PM10 24 Good 8 9 µg/m3
6:00 AM TIM PM2.5 24 Good 22 3 µg/m3
6:00 AM WBY NO2 1 Good 24 25 PPB
6:00 AM WBY NO2 1 Good 24 25 PPB
6:00 AM WBY O3 8 Good 23 25 PPB
6:00 AM WBY PM10 24 Good 15 16 µg/m3
6:00 AM WBY PM2.5 24 Good 30 5 µg/m3
5:00 AM ACAD O3 8 Good 24 26 PPB
5:00 AM ACC PM10 24 Good 5 5 µg/m3
5:00 AM ACC PM2.5 24 Good 21 3 µg/m3
5:00 AM ADB PM10 24 Good 17 18 µg/m3
5:00 AM ADB PM2.5 24 Good 36 6 µg/m3
5:00 AM ALA PM10 24 Good 22 24 µg/m3
5:00 AM ALA PM2.5 24 Good 24 4 µg/m3
5:00 AM ASPN O3 8 Good 41 44 PPB
5:00 AM ASPN2 PM10 24 Good 9 10 µg/m3
5:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
5:00 AM AURE O3 8 Good 35 38 PPB
5:00 AM BHWK O3 8 Good 31 33 PPB
5:00 AM BOU PM10 24 Good 5 5 µg/m3
5:00 AM BOU PM2.5 24 Good 13 2 µg/m3
5:00 AM BOUR O3 8 Good 19 21 PPB
5:00 AM CAMP NO2 1 Good 12 13 PPB
5:00 AM CAMP NO2 1 Good 12 13 PPB
5:00 AM CAMP O3 8 Good 31 33 PPB
5:00 AM CAMP PM10 24 Good 6 7 µg/m3
5:00 AM CAMP PM2.5 24 Good 27 4 µg/m3
5:00 AM CAN PM10 24 Good 14 15 µg/m3
5:00 AM CAN PM2.5 24 Good 26 4 µg/m3
5:00 AM CASA CO 8 Good 1 0.1 PPM
5:00 AM CASA NO2 1 Good 18 19 PPB
5:00 AM CASA O3 8 Good 28 30 PPB
5:00 AM CASA PM2.5 24 Good 24 4 µg/m3
5:00 AM CCOL PM10 24 Good 16 17 µg/m3
5:00 AM CCOL PM2.5 24 Good 33 5 µg/m3
5:00 AM CHAT O3 8 Good 26 28 PPB
5:00 AM CHAT PM10 24 Good 6 6 µg/m3
5:00 AM CHAT PM2.5 24 Good 16 2 µg/m3
5:00 AM CTZ O3 8 Good 34 37 PPB
5:00 AM DELT PM10 24 Good 13 14 µg/m3
5:00 AM DELT PM2.5 24 Good 15 2 µg/m3
5:00 AM DELT PM2.5 24 Good 15 2 µg/m3
5:00 AM EVG O3 8 Good 11 12 PPB
5:00 AM FOS NO2 1 Good 8 8 PPB
5:00 AM FOS O3 8 Good 22 24 PPB
5:00 AM FTC CO 8 Good 1 0.1 PPM
5:00 AM FTC O3 8 Good 19 21 PPB
5:00 AM FTCF PM10 24 Good 4 4 µg/m3
5:00 AM FTCF PM2.5 24 Good 18 3 µg/m3
5:00 AM FTCW O3 8 Good 20 22 PPB
5:00 AM GJPB PM10 24 Good 5 5 µg/m3
5:00 AM GJPB PM2.5 24 Good 12 2 µg/m3
5:00 AM GREH PM10 24 Good 6 7 µg/m3
5:00 AM GREH PM2.5 24 Good 23 4 µg/m3
5:00 AM GRET CO 8 Good 1 0.1 PPM
5:00 AM GRET O3 8 Good 27 29 PPB
5:00 AM HLD O3 8 Good 34 37 PPB
5:00 AM I25DEN CO 8 Good 2 0.2 PPM
5:00 AM I25DEN NO2 1 Good 21 22 PPB
5:00 AM I25DEN PM10 24 Good 14 15 µg/m3
5:00 AM I25DEN PM2.5 24 Good 29 5 µg/m3
5:00 AM I25GLO NO2 1 Good 27 29 PPB
5:00 AM I25GLO PM10 24 Good 19 21 µg/m3
5:00 AM I25GLO PM2.5 24 Good 31 5 µg/m3
5:00 AM LAST NO2 1 Good 5 5 PPB
5:00 AM LAST O3 8 Good 25 27 PPB
5:00 AM LMB PM10 24 Good 22 24 µg/m3
5:00 AM LMB PM2.5 24 Good 28 5 µg/m3
5:00 AM LNGM PM10 24 Good 9 10 µg/m3
5:00 AM LNGM PM2.5 24 Good 27 4 µg/m3
5:00 AM MAN O3 8 Good 24 26 PPB
5:00 AM MFP NO2 1 Good 2 2 PPB
5:00 AM MFP O3 8 Good 24 26 PPB
5:00 AM NJH PM10 24 Good 10 11 µg/m3
5:00 AM NJH PM2.5 24 Good 25 4 µg/m3
5:00 AM NREL O3 8 Good 30 32 PPB
5:00 AM PAG PM10 24 Good 23 25 µg/m3
5:00 AM PAG PM2.5 24 Good 20 3 µg/m3
5:00 AM PAL O3 8 Good 39 42 PPB
5:00 AM PFS PM10 24 Good 14 15 µg/m3
5:00 AM PFS PM2.5 24 Good 24 4 µg/m3
5:00 AM PMS PM2.5 24 Good 22 3 µg/m3
5:00 AM PWES O3 8 Good 33 36 PPB
5:00 AM RFN NO2 1 Good 1 1 PPB
5:00 AM RFN O3 8 Good 31 34 PPB
5:00 AM RIFLO3 O3 8 Good 30 32 PPB
5:00 AM SSMB PM10 24 Good 6 6 µg/m3
5:00 AM SSMB PM2.5 24 Good 12 2 µg/m3
5:00 AM TEL PM10 24 Good 15 16 µg/m3
5:00 AM TEL PM2.5 24 Good 22 3 µg/m3
5:00 AM TIM NO2 1 Good 7 7 PPB
5:00 AM TIM O3 8 Good 22 24 PPB
5:00 AM TIM PM10 24 Good 7 8 µg/m3
5:00 AM TIM PM2.5 24 Good 21 3 µg/m3
5:00 AM WBY NO2 1 Good 25 26 PPB
5:00 AM WBY NO2 1 Good 25 26 PPB
5:00 AM WBY O3 8 Good 28 30 PPB
5:00 AM WBY PM10 24 Good 13 14 µg/m3
5:00 AM WBY PM2.5 24 Good 28 5 µg/m3
4:00 AM ACAD O3 8 Good 24 26 PPB
4:00 AM ACC PM10 24 Good 5 5 µg/m3
4:00 AM ACC PM2.5 24 Good 19 3 µg/m3
4:00 AM ADB PM10 24 Good 16 17 µg/m3
4:00 AM ADB PM2.5 24 Good 34 6 µg/m3
4:00 AM ALA PM10 24 Good 22 24 µg/m3
4:00 AM ALA PM2.5 24 Good 24 4 µg/m3
4:00 AM ASPN O3 8 Good 41 44 PPB
4:00 AM ASPN2 PM10 24 Good 10 11 µg/m3
4:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
4:00 AM AURE O3 8 Good 36 39 PPB
4:00 AM BHWK O3 8 Good 30 32 PPB
4:00 AM BOU PM10 24 Good 5 5 µg/m3
4:00 AM BOU PM2.5 24 Good 13 2 µg/m3
4:00 AM BOUR O3 8 Good 20 22 PPB
4:00 AM CAMP NO2 1 Good 6 6 PPB
4:00 AM CAMP NO2 1 Good 6 6 PPB
4:00 AM CAMP O3 8 Good 33 36 PPB
4:00 AM CAMP PM10 24 Good 6 6 µg/m3
4:00 AM CAMP PM2.5 24 Good 26 4 µg/m3
4:00 AM CAN PM10 24 Good 14 15 µg/m3
4:00 AM CAN PM2.5 24 Good 26 4 µg/m3
4:00 AM CASA CO 8 Good 1 0.1 PPM
4:00 AM CASA NO2 1 Good 15 16 PPB
4:00 AM CASA O3 8 Good 31 33 PPB
4:00 AM CASA PM2.5 24 Good 23 4 µg/m3
4:00 AM CCOL PM10 24 Good 16 17 µg/m3
4:00 AM CCOL PM2.5 24 Good 32 5 µg/m3
4:00 AM CHAT O3 8 Good 28 30 PPB
4:00 AM CHAT PM10 24 Good 6 6 µg/m3
4:00 AM CHAT PM2.5 24 Good 16 2 µg/m3
4:00 AM CTZ O3 8 Good 34 37 PPB
4:00 AM DELT PM10 24 Good 12 13 µg/m3
4:00 AM DELT PM2.5 24 Good 15 2 µg/m3
4:00 AM DELT PM2.5 24 Good 15 2 µg/m3
4:00 AM EVG O3 8 Good 12 13 PPB
4:00 AM FOS NO2 1 Good 8 8 PPB
4:00 AM FOS O3 8 Good 25 27 PPB
4:00 AM FTC CO 8 Good 1 0.1 PPM
4:00 AM FTC O3 8 Good 21 23 PPB
4:00 AM FTCF PM10 24 Good 4 4 µg/m3
4:00 AM FTCF PM2.5 24 Good 19 3 µg/m3
4:00 AM FTCW O3 8 Good 22 24 PPB
4:00 AM GJPB PM10 24 Good 5 5 µg/m3
4:00 AM GJPB PM2.5 24 Good 12 2 µg/m3
4:00 AM GREH PM10 24 Good 6 6 µg/m3
4:00 AM GREH PM2.5 24 Good 22 3 µg/m3
4:00 AM GRET CO 8 Good 1 0.1 PPM
4:00 AM GRET O3 8 Good 29 31 PPB
4:00 AM HLD O3 8 Good 36 39 PPB
4:00 AM I25DEN CO 8 Good 2 0.2 PPM
4:00 AM I25DEN NO2 1 Good 19 20 PPB
4:00 AM I25DEN PM10 24 Good 14 15 µg/m3
4:00 AM I25DEN PM2.5 24 Good 28 5 µg/m3
4:00 AM I25GLO NO2 1 Good 25 27 PPB
4:00 AM I25GLO PM10 24 Good 19 20 µg/m3
4:00 AM I25GLO PM2.5 24 Good 30 5 µg/m3
4:00 AM LAST NO2 1 Good 6 6 PPB
4:00 AM LAST O3 8 Good 27 29 PPB
4:00 AM LMB PM10 24 Good 23 25 µg/m3
4:00 AM LMB PM2.5 24 Good 28 5 µg/m3
4:00 AM LNGM PM10 24 Good 9 10 µg/m3
4:00 AM LNGM PM2.5 24 Good 26 4 µg/m3
4:00 AM MAN O3 8 Good 25 27 PPB
4:00 AM MFP NO2 1 Good 3 3 PPB
4:00 AM MFP O3 8 Good 26 28 PPB
4:00 AM NJH PM10 24 Good 10 11 µg/m3
4:00 AM NJH PM2.5 24 Good 24 4 µg/m3
4:00 AM NREL O3 8 Good 30 32 PPB
4:00 AM PAG PM10 24 Good 23 25 µg/m3
4:00 AM PAG PM2.5 24 Good 20 3 µg/m3
4:00 AM PAL O3 8 Good 41 44 PPB
4:00 AM PFS PM10 24 Good 14 15 µg/m3
4:00 AM PFS PM2.5 24 Good 24 4 µg/m3
4:00 AM PMS PM2.5 24 Good 21 3 µg/m3
4:00 AM PWES O3 8 Good 35 38 PPB
4:00 AM RFN NO2 1 Good 1 1 PPB
4:00 AM RFN O3 8 Good 31 33 PPB
4:00 AM RIFLO3 O3 8 Good 32 35 PPB
4:00 AM SSMB PM10 24 Good 6 6 µg/m3
4:00 AM SSMB PM2.5 24 Good 12 2 µg/m3
4:00 AM TEL PM10 24 Good 15 16 µg/m3
4:00 AM TEL PM2.5 24 Good 22 3 µg/m3
4:00 AM TIM NO2 1 Good 6 6 PPB
4:00 AM TIM O3 8 Good 25 27 PPB
4:00 AM TIM PM10 24 Good 7 8 µg/m3
4:00 AM TIM PM2.5 24 Good 21 3 µg/m3
4:00 AM WBY NO2 1 Good 22 23 PPB
4:00 AM WBY NO2 1 Good 22 23 PPB
4:00 AM WBY O3 8 Good 31 34 PPB
4:00 AM WBY PM10 24 Good 13 14 µg/m3
4:00 AM WBY PM2.5 24 Good 27 4 µg/m3
3:00 AM ACAD O3 8 Good 26 28 PPB
3:00 AM ACC PM10 24 Good 4 4 µg/m3
3:00 AM ACC PM2.5 24 Good 18 3 µg/m3
3:00 AM ADB PM10 24 Good 15 16 µg/m3
3:00 AM ADB PM2.5 24 Good 33 5 µg/m3
3:00 AM ALA PM10 24 Good 22 24 µg/m3
3:00 AM ALA PM2.5 24 Good 23 4 µg/m3
3:00 AM ASPN O3 8 Good 42 45 PPB
3:00 AM ASPN2 PM10 24 Good 10 11 µg/m3
3:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
3:00 AM AURE O3 8 Good 37 40 PPB
3:00 AM BHWK O3 8 Good 30 32 PPB
3:00 AM BOU PM10 24 Good 5 5 µg/m3
3:00 AM BOU PM2.5 24 Good 13 2 µg/m3
3:00 AM BOUR O3 8 Good 22 24 PPB
3:00 AM CAMP NO2 1 Good 6 6 PPB
3:00 AM CAMP NO2 1 Good 6 6 PPB
3:00 AM CAMP O3 8 Good 34 37 PPB
3:00 AM CAMP PM10 24 Good 6 6 µg/m3
3:00 AM CAMP PM2.5 24 Good 25 4 µg/m3
3:00 AM CAN PM10 24 Good 13 14 µg/m3
3:00 AM CAN PM2.5 24 Good 25 4 µg/m3
3:00 AM CASA CO 8 Good 1 0.1 PPM
3:00 AM CASA NO2 1 Good 10 11 PPB
3:00 AM CASA O3 8 Good 33 36 PPB
3:00 AM CASA PM2.5 24 Good 22 4 µg/m3
3:00 AM CCOL PM10 24 Good 15 16 µg/m3
3:00 AM CCOL PM2.5 24 Good 31 5 µg/m3
3:00 AM CHAT O3 8 Good 30 32 PPB
3:00 AM CHAT PM10 24 Good 6 6 µg/m3
3:00 AM CHAT PM2.5 24 Good 15 2 µg/m3
3:00 AM CTZ O3 8 Good 37 40 PPB
3:00 AM DELT PM10 24 Good 12 13 µg/m3
3:00 AM DELT PM2.5 24 Good 14 2 µg/m3
3:00 AM DELT PM2.5 24 Good 14 2 µg/m3
3:00 AM EVG O3 8 Good 13 14 PPB
3:00 AM FOS NO2 1 Good 5 5 PPB
3:00 AM FOS O3 8 Good 28 30 PPB
3:00 AM FTC CO 8 Good 1 0.1 PPM
3:00 AM FTC O3 8 Good 24 26 PPB
3:00 AM FTCF PM10 24 Good 4 4 µg/m3
3:00 AM FTCF PM2.5 24 Good 19 3 µg/m3
3:00 AM FTCW O3 8 Good 25 27 PPB
3:00 AM GJPB PM10 24 Good 5 5 µg/m3
3:00 AM GJPB PM2.5 24 Good 13 2 µg/m3
3:00 AM GREH PM10 24 Good 6 6 µg/m3
3:00 AM GREH PM2.5 24 Good 20 3 µg/m3
3:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM GRET O3 8 Good 31 34 PPB
3:00 AM HLD O3 8 Good 37 40 PPB
3:00 AM I25DEN CO 8 Good 2 0.2 PPM
3:00 AM I25DEN NO2 1 Good 20 21 PPB
3:00 AM I25DEN PM10 24 Good 14 15 µg/m3
3:00 AM I25DEN PM2.5 24 Good 27 4 µg/m3
3:00 AM I25GLO NO2 1 Good 18 19 PPB
3:00 AM I25GLO PM10 24 Good 19 20 µg/m3
3:00 AM I25GLO PM2.5 24 Good 29 5 µg/m3
3:00 AM LAST NO2 1 Good 4 4 PPB
3:00 AM LAST O3 8 Good 30 32 PPB
3:00 AM LMB PM10 24 Good 24 26 µg/m3
3:00 AM LMB PM2.5 24 Good 28 5 µg/m3
3:00 AM LNGM PM10 24 Good 9 10 µg/m3
3:00 AM LNGM PM2.5 24 Good 27 4 µg/m3
3:00 AM MAN O3 8 Good 27 29 PPB
3:00 AM MFP NO2 1 Good 3 3 PPB
3:00 AM MFP O3 8 Good 28 30 PPB
3:00 AM NJH PM10 24 Good 9 10 µg/m3
3:00 AM NJH PM2.5 24 Good 23 4 µg/m3
3:00 AM NREL O3 8 Good 31 33 PPB
3:00 AM PAG PM10 24 Good 23 25 µg/m3
3:00 AM PAG PM2.5 24 Good 21 3 µg/m3
3:00 AM PAL O3 8 Good 44 47 PPB
3:00 AM PFS PM10 24 Good 14 15 µg/m3
3:00 AM PFS PM2.5 24 Good 23 4 µg/m3
3:00 AM PMS PM2.5 24 Good 21 3 µg/m3
3:00 AM PWES O3 8 Good 36 39 PPB
3:00 AM RFN NO2 1 Good 2 2 PPB
3:00 AM RFN O3 8 Good 31 34 PPB
3:00 AM RIFLO3 O3 8 Good 36 39 PPB
3:00 AM SSMB PM10 24 Good 6 6 µg/m3
3:00 AM SSMB PM2.5 24 Good 12 2 µg/m3
3:00 AM TEL PM10 24 Good 15 16 µg/m3
3:00 AM TEL PM2.5 24 Good 21 3 µg/m3
3:00 AM TIM NO2 1 Good 5 5 PPB
3:00 AM TIM O3 8 Good 28 30 PPB
3:00 AM TIM PM10 24 Good 7 8 µg/m3
3:00 AM TIM PM2.5 24 Good 20 3 µg/m3
3:00 AM WBY NO2 1 Good 8 9 PPB
3:00 AM WBY NO2 1 Good 8 9 PPB
3:00 AM WBY O3 8 Good 34 37 PPB
3:00 AM WBY PM10 24 Good 11 12 µg/m3
3:00 AM WBY PM2.5 24 Good 26 4 µg/m3
2:00 AM ACAD O3 8 Good 27 29 PPB
2:00 AM ACC PM10 24 Good 4 4 µg/m3
2:00 AM ACC PM2.5 24 Good 17 3 µg/m3
2:00 AM ADB PM10 24 Good 14 15 µg/m3
2:00 AM ADB PM2.5 24 Good 32 5 µg/m3
2:00 AM ALA PM10 24 Good 22 24 µg/m3
2:00 AM ALA PM2.5 24 Good 23 4 µg/m3
2:00 AM ASPN O3 8 Good 43 46 PPB
2:00 AM ASPN2 PM10 24 Good 10 11 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
2:00 AM AURE O3 8 Good 37 40 PPB
2:00 AM BHWK O3 8 Good 30 32 PPB
2:00 AM BOU PM10 24 Good 5 5 µg/m3
2:00 AM BOU PM2.5 24 Good 14 2 µg/m3
2:00 AM BOUR O3 8 Good 25 27 PPB
2:00 AM CAMP NO2 1 Good 4 4 PPB
2:00 AM CAMP NO2 1 Good 4 4 PPB
2:00 AM CAMP O3 8 Good 36 39 PPB
2:00 AM CAMP PM10 24 Good 6 6 µg/m3
2:00 AM CAMP PM2.5 24 Good 24 4 µg/m3
2:00 AM CAN PM10 24 Good 13 14 µg/m3
2:00 AM CAN PM2.5 24 Good 24 4 µg/m3
2:00 AM CASA CO 8 Good 1 0.1 PPM
2:00 AM CASA NO2 1 Good 5 5 PPB
2:00 AM CASA O3 8 Good 34 37 PPB
2:00 AM CASA PM2.5 24 Good 21 3 µg/m3
2:00 AM CCOL PM10 24 Good 15 16 µg/m3
2:00 AM CCOL PM2.5 24 Good 30 5 µg/m3
2:00 AM CHAT O3 8 Good 31 34 PPB
2:00 AM CHAT PM10 24 Good 5 5 µg/m3
2:00 AM CHAT PM2.5 24 Good 14 2 µg/m3
2:00 AM CTZ O3 8 Good 41 44 PPB
2:00 AM DELT PM10 24 Good 12 13 µg/m3
2:00 AM DELT PM2.5 24 Good 14 2 µg/m3
2:00 AM DELT PM2.5 24 Good 14 2 µg/m3
2:00 AM EVG O3 8 Good 16 17 PPB
2:00 AM FOS NO2 1 Good 3 3 PPB
2:00 AM FOS O3 8 Good 31 33 PPB
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM FTC O3 8 Good 28 30 PPB
2:00 AM FTCF PM10 24 Good 5 5 µg/m3
2:00 AM FTCF PM2.5 24 Good 19 3 µg/m3
2:00 AM FTCW O3 8 Good 28 30 PPB
2:00 AM GJPB PM10 24 Good 5 5 µg/m3
2:00 AM GJPB PM2.5 24 Good 13 2 µg/m3
2:00 AM GREH PM10 24 Good 6 6 µg/m3
2:00 AM GREH PM2.5 24 Good 19 3 µg/m3
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM GRET O3 8 Good 33 36 PPB
2:00 AM HLD O3 8 Good 38 41 PPB
2:00 AM I25DEN CO 8 Good 2 0.2 PPM
2:00 AM I25DEN NO2 1 Good 13 14 PPB
2:00 AM I25DEN PM10 24 Good 13 14 µg/m3
2:00 AM I25DEN PM2.5 24 Good 26 4 µg/m3
2:00 AM I25GLO NO2 1 Good 10 11 PPB
2:00 AM LAST NO2 1 Good 5 5 PPB
2:00 AM LAST O3 8 Good 32 35 PPB
2:00 AM LMB PM10 24 Good 25 27 µg/m3
2:00 AM LMB PM2.5 24 Good 28 5 µg/m3
2:00 AM LNGM PM10 24 Good 9 10 µg/m3
2:00 AM LNGM PM2.5 24 Good 26 4 µg/m3
2:00 AM MAN O3 8 Good 28 30 PPB
2:00 AM MFP NO2 1 Good 3 3 PPB
2:00 AM MFP O3 8 Good 31 34 PPB
2:00 AM NJH PM10 24 Good 9 10 µg/m3
2:00 AM NJH PM2.5 24 Good 22 4 µg/m3
2:00 AM NREL O3 8 Good 31 34 PPB
2:00 AM PAG PM10 24 Good 23 25 µg/m3
2:00 AM PAG PM2.5 24 Good 21 3 µg/m3
2:00 AM PAL O3 8 Good 46 50 PPB
2:00 AM PFS PM10 24 Good 14 15 µg/m3
2:00 AM PFS PM2.5 24 Good 23 4 µg/m3
2:00 AM PMS PM2.5 24 Good 19 3 µg/m3
2:00 AM PWES O3 8 Good 37 40 PPB
2:00 AM RFN NO2 1 Good 2 2 PPB
2:00 AM RFN O3 8 Good 33 36 PPB
2:00 AM RIFLO3 O3 8 Good 40 43 PPB
2:00 AM SSMB PM10 24 Good 6 6 µg/m3
2:00 AM SSMB PM2.5 24 Good 12 2 µg/m3
2:00 AM TEL PM10 24 Good 15 16 µg/m3
2:00 AM TEL PM2.5 24 Good 21 3 µg/m3
2:00 AM TIM NO2 1 Good 4 4 PPB
2:00 AM TIM O3 8 Good 31 33 PPB
2:00 AM TIM PM10 24 Good 7 8 µg/m3
2:00 AM TIM PM2.5 24 Good 20 3 µg/m3
2:00 AM WBY NO2 1 Good 6 6 PPB
2:00 AM WBY NO2 1 Good 6 6 PPB
2:00 AM WBY O3 8 Good 36 39 PPB
2:00 AM WBY PM10 24 Good 11 12 µg/m3
2:00 AM WBY PM2.5 24 Good 25 4 µg/m3
1:00 AM ACAD O3 8 Good 27 29 PPB
1:00 AM ACC PM10 24 Good 4 4 µg/m3
1:00 AM ACC PM2.5 24 Good 16 2 µg/m3
1:00 AM ADB PM10 24 Good 14 15 µg/m3
1:00 AM ADB PM2.5 24 Good 32 5 µg/m3
1:00 AM ALA PM10 24 Good 21 23 µg/m3
1:00 AM ALA PM2.5 24 Good 23 4 µg/m3
1:00 AM ASPN O3 8 Good 43 46 PPB
1:00 AM ASPN2 PM10 24 Good 10 11 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 13 2 µg/m3
1:00 AM AURE O3 8 Good 37 40 PPB
1:00 AM BHWK O3 8 Good 31 34 PPB
1:00 AM BOU PM10 24 Good 5 5 µg/m3
1:00 AM BOU PM2.5 24 Good 14 2 µg/m3
1:00 AM BOUR O3 8 Good 28 30 PPB
1:00 AM CAMP NO2 1 Good 3 3 PPB
1:00 AM CAMP NO2 1 Good 3 3 PPB
1:00 AM CAMP O3 8 Good 36 39 PPB
1:00 AM CAMP PM10 24 Good 6 6 µg/m3
1:00 AM CAMP PM2.5 24 Good 23 4 µg/m3
1:00 AM CAN PM10 24 Good 12 13 µg/m3
1:00 AM CAN PM2.5 24 Good 23 4 µg/m3
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM CASA NO2 1 Good 8 9 PPB
1:00 AM CASA O3 8 Good 35 38 PPB
1:00 AM CASA PM2.5 24 Good 21 3 µg/m3
1:00 AM CCOL PM10 24 Good 14 15 µg/m3
1:00 AM CCOL PM2.5 24 Good 29 5 µg/m3
1:00 AM CHAT O3 8 Good 33 36 PPB
1:00 AM CHAT PM10 24 Good 5 5 µg/m3
1:00 AM CHAT PM2.5 24 Good 13 2 µg/m3
1:00 AM CTZ O3 8 Good 44 48 PPB
1:00 AM DELT PM10 24 Good 12 13 µg/m3
1:00 AM DELT PM2.5 24 Good 14 2 µg/m3
1:00 AM DELT PM2.5 24 Good 14 2 µg/m3
1:00 AM EVG O3 8 Good 19 20 PPB
1:00 AM FOS NO2 1 Good 4 4 PPB
1:00 AM FOS O3 8 Good 32 35 PPB
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM FTC O3 8 Good 31 34 PPB
1:00 AM FTCF PM10 24 Good 5 5 µg/m3
1:00 AM FTCF PM2.5 24 Good 19 3 µg/m3
1:00 AM FTCW O3 8 Good 31 33 PPB
1:00 AM GJPB PM10 24 Good 5 5 µg/m3
1:00 AM GJPB PM2.5 24 Good 12 2 µg/m3
1:00 AM GREH PM10 24 Good 6 6 µg/m3
1:00 AM GREH PM2.5 24 Good 20 3 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 36 39 PPB
1:00 AM HLD O3 8 Good 38 41 PPB
1:00 AM I25DEN CO 8 Good 3 0.3 PPM
1:00 AM I25DEN NO2 1 Good 17 18 PPB
1:00 AM I25DEN PM10 24 Good 13 14 µg/m3
1:00 AM I25DEN PM2.5 24 Good 26 4 µg/m3
1:00 AM I25GLO NO2 1 Good 8 9 PPB
1:00 AM LAST NO2 1 Good 5 5 PPB
1:00 AM LAST O3 8 Good 35 38 PPB
1:00 AM LMB PM10 24 Good 26 28 µg/m3
1:00 AM LMB PM2.5 24 Good 28 5 µg/m3
1:00 AM LNGM PM10 24 Good 8 9 µg/m3
1:00 AM LNGM PM2.5 24 Good 26 4 µg/m3
1:00 AM MAN O3 8 Good 28 30 PPB
1:00 AM MFP NO2 1 Good 2 2 PPB
1:00 AM MFP O3 8 Good 34 37 PPB
1:00 AM NJH PM10 24 Good 8 9 µg/m3
1:00 AM NJH PM2.5 24 Good 22 3 µg/m3
1:00 AM NREL O3 8 Good 33 36 PPB
1:00 AM PAG PM10 24 Good 23 25 µg/m3
1:00 AM PAG PM2.5 24 Good 21 3 µg/m3
1:00 AM PAL O3 8 Good 50 54 PPB
1:00 AM PFS PM10 24 Good 13 14 µg/m3
1:00 AM PFS PM2.5 24 Good 22 4 µg/m3
1:00 AM PMS PM2.5 24 Good 19 3 µg/m3
1:00 AM PWES O3 8 Good 37 40 PPB
1:00 AM RFN NO2 1 Good 2 2 PPB
1:00 AM RFN O3 8 Good 35 38 PPB
1:00 AM RIFLO3 O3 8 Good 43 46 PPB
1:00 AM SSMB PM10 24 Good 6 6 µg/m3
1:00 AM SSMB PM2.5 24 Good 12 2 µg/m3
1:00 AM TEL PM10 24 Good 15 16 µg/m3
1:00 AM TEL PM2.5 24 Good 21 3 µg/m3
1:00 AM TIM NO2 1 Good 3 3 PPB
1:00 AM TIM O3 8 Good 33 36 PPB
1:00 AM TIM PM10 24 Good 7 8 µg/m3
1:00 AM TIM PM2.5 24 Good 19 3 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 37 40 PPB
1:00 AM WBY PM10 24 Good 11 12 µg/m3
1:00 AM WBY PM2.5 24 Good 24 4 µg/m3

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