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AQI Calculations on 05/22/2025 1:00AM - 12:00PM

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.
12:00 PM ACAD O3 8 Good 35 38 PPB
12:00 PM ACC PM10 24 Good 10 11 µg/m3
12:00 PM ACC PM2.5 24 Good 19 3 µg/m3
12:00 PM ADB PM10 24 Good 32 35 µg/m3
12:00 PM ADB PM2.5 24 Good 27 4 µg/m3
12:00 PM ALA PM10 24 Good 19 21 µg/m3
12:00 PM ALA PM2.5 24 Good 23 4 µg/m3
12:00 PM ASPN O3 8 Good 44 47 PPB
12:00 PM ASPN2 PM10 24 Good 13 14 µg/m3
12:00 PM ASPN2 PM2.5 24 Good 20 3 µg/m3
12:00 PM AURE O3 8 Good 44 47 PPB
12:00 PM BHWK O3 8 Good 39 42 PPB
12:00 PM BOU PM10 24 Good 14 15 µg/m3
12:00 PM BOU PM2.5 24 Good 20 3 µg/m3
12:00 PM BOUR O3 8 Good 37 40 PPB
12:00 PM CAMP NO2 1 Good 12 13 PPB
12:00 PM CAMP NO2 1 Good 12 13 PPB
12:00 PM CAMP O3 8 Good 31 34 PPB
12:00 PM CAMP PM10 24 Good 13 14 µg/m3
12:00 PM CAMP PM2.5 24 Good 24 4 µg/m3
12:00 PM CAN PM10 24 Good 31 34 µg/m3
12:00 PM CAN PM2.5 24 Good 24 4 µg/m3
12:00 PM CASA CO 8 Good 1 0.1 PPM
12:00 PM CASA NO2 1 Good 8 9 PPB
12:00 PM CASA O3 8 Good 33 36 PPB
12:00 PM CASA PM10 24 Good 19 20 µg/m3
12:00 PM CASA PM2.5 24 Good 23 4 µg/m3
12:00 PM CASA SO2 1 Good 1 1 PPB
12:00 PM CCOL CO 8 Good 1 0.1 PPM
12:00 PM CCOL PM10 24 Good 17 18 µg/m3
12:00 PM CCOL PM2.5 24 Good 24 4 µg/m3
12:00 PM CHAT O3 8 Good 39 42 PPB
12:00 PM CHAT PM10 24 Good 22 24 µg/m3
12:00 PM CHAT PM2.5 24 Good 22 4 µg/m3
12:00 PM CTZ O3 8 Good 38 41 PPB
12:00 PM EVG O3 8 Good 38 41 PPB
12:00 PM FOS NO2 1 Good 2 2 PPB
12:00 PM FOS O3 8 Good 32 35 PPB
12:00 PM FTC CO 8 Good 1 0.1 PPM
12:00 PM FTC O3 8 Good 33 36 PPB
12:00 PM FTCF PM10 24 Good 10 11 µg/m3
12:00 PM FTCF PM2.5 24 Good 20 3 µg/m3
12:00 PM FTCW O3 8 Good 40 43 PPB
12:00 PM GJPB PM10 24 Good 11 12 µg/m3
12:00 PM GJPB PM2.5 24 Good 22 4 µg/m3
12:00 PM GREH PM10 24 Good 8 9 µg/m3
12:00 PM GREH PM2.5 24 Good 17 3 µg/m3
12:00 PM GRET CO 8 Good 1 0.1 PPM
12:00 PM GRET O3 8 Good 34 37 PPB
12:00 PM HLD O3 8 Good 31 33 PPB
12:00 PM I25DEN CO 8 Good 5 0.4 PPM
12:00 PM I25DEN NO2 1 Good 26 28 PPB
12:00 PM I25DEN PM10 24 Good 12 13 µg/m3
12:00 PM I25DEN PM2.5 24 Good 26 4 µg/m3
12:00 PM I25GLO NO2 1 Good 25 27 PPB
12:00 PM I25GLO PM10 24 Good 23 25 µg/m3
12:00 PM I25GLO PM2.5 24 Good 29 5 µg/m3
12:00 PM LAST NO2 1 Good 1 1 PPB
12:00 PM LAST O3 8 Good 40 43 PPB
12:00 PM LMB PM10 24 Good 19 20 µg/m3
12:00 PM LMB PM2.5 24 Good 22 4 µg/m3
12:00 PM LNGM PM10 24 Good 35 38 µg/m3
12:00 PM LNGM PM2.5 24 Good 26 4 µg/m3
12:00 PM MAN O3 8 Good 43 46 PPB
12:00 PM NJH PM10 24 Good 19 21 µg/m3
12:00 PM NJH PM2.5 24 Good 23 4 µg/m3
12:00 PM NREL O3 8 Good 42 45 PPB
12:00 PM PAG PM10 24 Good 17 18 µg/m3
12:00 PM PAG PM2.5 24 Good 23 4 µg/m3
12:00 PM PAL O3 8 Good 43 46 PPB
12:00 PM PFS PM10 24 Good 15 16 µg/m3
12:00 PM PFS PM2.5 24 Good 21 3 µg/m3
12:00 PM PMS PM2.5 24 Good 29 5 µg/m3
12:00 PM PWES O3 8 Good 41 44 PPB
12:00 PM RFN NO2 1 Good 3 3 PPB
12:00 PM RFN O3 8 Good 44 47 PPB
12:00 PM RIFL PM2.5 24 Good 22 4 µg/m3
12:00 PM SSMB PM10 24 Good 10 11 µg/m3
12:00 PM SSMB PM2.5 24 Good 19 3 µg/m3
12:00 PM TEL PM10 24 Good 21 23 µg/m3
12:00 PM TEL PM2.5 24 Good 24 4 µg/m3
12:00 PM TIM NO2 1 Good 2 2 PPB
12:00 PM TIM O3 8 Good 32 35 PPB
12:00 PM TIM PM10 24 Good 12 13 µg/m3
12:00 PM TIM PM2.5 24 Good 19 3 µg/m3
12:00 PM WBY NO2 1 Good 5 5 PPB
12:00 PM WBY NO2 1 Good 5 5 PPB
12:00 PM WBY O3 8 Good 31 34 PPB
12:00 PM WBY PM10 24 Good 27 29 µg/m3
12:00 PM WBY PM2.5 24 Good 24 4 µg/m3
11:00 AM ACAD O3 8 Good 32 35 PPB
11:00 AM ACC PM10 24 Good 9 10 µg/m3
11:00 AM ACC PM2.5 24 Good 18 3 µg/m3
11:00 AM ADB PM10 24 Good 39 42 µg/m3
11:00 AM ADB PM2.5 24 Good 37 6 µg/m3
11:00 AM ALA PM10 24 Good 19 21 µg/m3
11:00 AM ALA PM2.5 24 Good 23 4 µg/m3
11:00 AM ASPN O3 8 Good 43 46 PPB
11:00 AM ASPN2 PM10 24 Good 13 14 µg/m3
11:00 AM ASPN2 PM2.5 24 Good 20 3 µg/m3
11:00 AM AURE O3 8 Good 40 43 PPB
11:00 AM BHWK O3 8 Good 36 39 PPB
11:00 AM BOU PM10 24 Good 14 15 µg/m3
11:00 AM BOU PM2.5 24 Good 19 3 µg/m3
11:00 AM BOUR O3 8 Good 35 38 PPB
11:00 AM CAMP NO2 1 Good 9 10 PPB
11:00 AM CAMP NO2 1 Good 9 10 PPB
11:00 AM CAMP O3 8 Good 30 32 PPB
11:00 AM CAMP PM10 24 Good 12 13 µg/m3
11:00 AM CAMP PM2.5 24 Good 23 4 µg/m3
11:00 AM CAN PM10 24 Good 31 33 µg/m3
11:00 AM CAN PM2.5 24 Good 24 4 µg/m3
11:00 AM CASA CO 8 Good 1 0.1 PPM
11:00 AM CASA NO2 1 Good 8 8 PPB
11:00 AM CASA O3 8 Good 30 32 PPB
11:00 AM CASA PM10 24 Good 18 19 µg/m3
11:00 AM CASA PM2.5 24 Good 22 4 µg/m3
11:00 AM CCOL CO 8 Good 1 0.1 PPM
11:00 AM CCOL PM10 24 Good 16 17 µg/m3
11:00 AM CCOL PM2.5 24 Good 23 4 µg/m3
11:00 AM CHAT O3 8 Good 35 38 PPB
11:00 AM CHAT PM10 24 Good 22 24 µg/m3
11:00 AM CHAT PM2.5 24 Good 22 3 µg/m3
11:00 AM CTZ O3 8 Good 34 37 PPB
11:00 AM EVG O3 8 Good 34 37 PPB
11:00 AM FOS NO2 1 Good 2 2 PPB
11:00 AM FOS O3 8 Good 28 30 PPB
11:00 AM FTC CO 8 Good 1 0.1 PPM
11:00 AM FTC O3 8 Good 30 32 PPB
11:00 AM FTCF PM10 24 Good 9 10 µg/m3
11:00 AM FTCF PM2.5 24 Good 19 3 µg/m3
11:00 AM FTCW O3 8 Good 37 40 PPB
11:00 AM GJPB PM10 24 Good 10 11 µg/m3
11:00 AM GJPB PM2.5 24 Good 21 3 µg/m3
11:00 AM GREH PM10 24 Good 7 8 µg/m3
11:00 AM GREH PM2.5 24 Good 17 3 µg/m3
11:00 AM GRET CO 8 Good 1 0.1 PPM
11:00 AM GRET O3 8 Good 30 32 PPB
11:00 AM HLD O3 8 Good 28 30 PPB
11:00 AM I25DEN CO 8 Good 3 0.3 PPM
11:00 AM I25DEN NO2 1 Good 24 25 PPB
11:00 AM I25DEN PM10 24 Good 11 12 µg/m3
11:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
11:00 AM I25GLO NO2 1 Good 21 22 PPB
11:00 AM I25GLO PM10 24 Good 21 23 µg/m3
11:00 AM I25GLO PM2.5 24 Good 28 5 µg/m3
11:00 AM LAST NO2 1 Good 1 1 PPB
11:00 AM LAST O3 8 Good 36 39 PPB
11:00 AM LMB PM10 24 Good 19 20 µg/m3
11:00 AM LMB PM2.5 24 Good 22 4 µg/m3
11:00 AM LNGM PM10 24 Good 34 37 µg/m3
11:00 AM LNGM PM2.5 24 Good 25 4 µg/m3
11:00 AM MAN O3 8 Good 40 43 PPB
11:00 AM NJH PM10 24 Good 19 21 µg/m3
11:00 AM NJH PM2.5 24 Good 23 4 µg/m3
11:00 AM NREL O3 8 Good 39 42 PPB
11:00 AM PAG PM10 24 Good 16 17 µg/m3
11:00 AM PAG PM2.5 24 Good 23 4 µg/m3
11:00 AM PAL O3 8 Good 41 44 PPB
11:00 AM PFS PM10 24 Good 15 16 µg/m3
11:00 AM PFS PM2.5 24 Good 20 3 µg/m3
11:00 AM PMS PM2.5 24 Good 28 5 µg/m3
11:00 AM PWES O3 8 Good 39 42 PPB
11:00 AM RFN NO2 1 Good 2 2 PPB
11:00 AM RFN O3 8 Good 42 45 PPB
11:00 AM RIFL PM2.5 24 Good 23 4 µg/m3
11:00 AM SSMB PM10 24 Good 11 12 µg/m3
11:00 AM SSMB PM2.5 24 Good 19 3 µg/m3
11:00 AM TEL PM10 24 Good 21 23 µg/m3
11:00 AM TEL PM2.5 24 Good 24 4 µg/m3
11:00 AM TIM NO2 1 Good 2 2 PPB
11:00 AM TIM O3 8 Good 28 30 PPB
11:00 AM TIM PM10 24 Good 11 12 µg/m3
11:00 AM TIM PM2.5 24 Good 18 3 µg/m3
11:00 AM WBY NO2 1 Good 7 7 PPB
11:00 AM WBY NO2 1 Good 7 7 PPB
11:00 AM WBY O3 8 Good 29 31 PPB
11:00 AM WBY PM10 24 Good 26 28 µg/m3
11:00 AM WBY PM2.5 24 Good 23 4 µg/m3
10:00 AM ACAD O3 8 Good 31 33 PPB
10:00 AM ACC PM10 24 Good 9 10 µg/m3
10:00 AM ACC PM2.5 24 Good 18 3 µg/m3
10:00 AM ADB PM10 24 Good 39 42 µg/m3
10:00 AM ADB PM2.5 24 Good 37 6 µg/m3
10:00 AM ALA PM10 24 Good 19 21 µg/m3
10:00 AM ALA PM2.5 24 Good 23 4 µg/m3
10:00 AM ASPN O3 8 Good 42 45 PPB
10:00 AM ASPN2 PM10 24 Good 13 14 µg/m3
10:00 AM ASPN2 PM2.5 24 Good 20 3 µg/m3
10:00 AM AURE O3 8 Good 38 41 PPB
10:00 AM BHWK O3 8 Good 36 39 PPB
10:00 AM BOU PM10 24 Good 13 14 µg/m3
10:00 AM BOU PM2.5 24 Good 19 3 µg/m3
10:00 AM BOUR O3 8 Good 32 35 PPB
10:00 AM CAMP NO2 1 Good 8 8 PPB
10:00 AM CAMP NO2 1 Good 8 8 PPB
10:00 AM CAMP O3 8 Good 30 32 PPB
10:00 AM CAMP PM10 24 Good 12 13 µg/m3
10:00 AM CAMP PM2.5 24 Good 23 4 µg/m3
10:00 AM CAN PM10 24 Good 30 32 µg/m3
10:00 AM CAN PM2.5 24 Good 24 4 µg/m3
10:00 AM CASA CO 8 Good 1 0.1 PPM
10:00 AM CASA NO2 1 Good 9 10 PPB
10:00 AM CASA O3 8 Good 28 30 PPB
10:00 AM CASA PM10 24 Good 18 19 µg/m3
10:00 AM CASA PM2.5 24 Good 22 3 µg/m3
10:00 AM CCOL CO 8 Good 1 0.1 PPM
10:00 AM CCOL PM10 24 Good 16 17 µg/m3
10:00 AM CCOL PM2.5 24 Good 23 4 µg/m3
10:00 AM CHAT O3 8 Good 32 35 PPB
10:00 AM CHAT PM10 24 Good 22 24 µg/m3
10:00 AM CHAT PM2.5 24 Good 21 3 µg/m3
10:00 AM CTZ O3 8 Good 31 34 PPB
10:00 AM EVG O3 8 Good 31 34 PPB
10:00 AM FOS NO2 1 Good 3 3 PPB
10:00 AM FOS O3 8 Good 25 27 PPB
10:00 AM FTC CO 8 Good 1 0.1 PPM
10:00 AM FTC O3 8 Good 27 29 PPB
10:00 AM FTCF PM10 24 Good 10 11 µg/m3
10:00 AM FTCF PM2.5 24 Good 18 3 µg/m3
10:00 AM FTCW O3 8 Good 34 37 PPB
10:00 AM GJPB PM10 24 Good 10 11 µg/m3
10:00 AM GJPB PM2.5 24 Good 21 3 µg/m3
10:00 AM GREH PM10 24 Good 7 8 µg/m3
10:00 AM GREH PM2.5 24 Good 17 3 µg/m3
10:00 AM GRET CO 8 Good 1 0.1 PPM
10:00 AM GRET O3 8 Good 27 29 PPB
10:00 AM HLD O3 8 Good 26 28 PPB
10:00 AM I25DEN CO 8 Good 3 0.3 PPM
10:00 AM I25DEN NO2 1 Good 14 15 PPB
10:00 AM I25DEN PM10 24 Good 11 12 µg/m3
10:00 AM I25DEN PM2.5 24 Good 24 4 µg/m3
10:00 AM I25GLO NO2 1 Good 20 21 PPB
10:00 AM I25GLO PM10 24 Good 21 23 µg/m3
10:00 AM I25GLO PM2.5 24 Good 28 5 µg/m3
10:00 AM LAST NO2 1 Good 1 1 PPB
10:00 AM LAST O3 8 Good 34 37 PPB
10:00 AM LMB PM10 24 Good 18 19 µg/m3
10:00 AM LMB PM2.5 24 Good 22 4 µg/m3
10:00 AM LNGM PM10 24 Good 33 36 µg/m3
10:00 AM LNGM PM2.5 24 Good 24 4 µg/m3
10:00 AM MAN O3 8 Good 38 41 PPB
10:00 AM NJH PM10 24 Good 19 21 µg/m3
10:00 AM NJH PM2.5 24 Good 23 4 µg/m3
10:00 AM NREL O3 8 Good 38 41 PPB
10:00 AM PAG PM10 24 Good 16 17 µg/m3
10:00 AM PAG PM2.5 24 Good 23 4 µg/m3
10:00 AM PAL O3 8 Good 40 43 PPB
10:00 AM PFS PM10 24 Good 15 16 µg/m3
10:00 AM PFS PM2.5 24 Good 20 3 µg/m3
10:00 AM PMS PM2.5 24 Good 28 5 µg/m3
10:00 AM PWES O3 8 Good 38 41 PPB
10:00 AM RFN NO2 1 Good 2 2 PPB
10:00 AM RFN O3 8 Good 42 45 PPB
10:00 AM RIFL PM2.5 24 Good 23 4 µg/m3
10:00 AM SSMB PM10 24 Good 10 11 µg/m3
10:00 AM SSMB PM2.5 24 Good 19 3 µg/m3
10:00 AM TEL PM10 24 Good 22 24 µg/m3
10:00 AM TEL PM2.5 24 Good 24 4 µg/m3
10:00 AM TIM NO2 1 Good 2 2 PPB
10:00 AM TIM O3 8 Good 24 26 PPB
10:00 AM TIM PM10 24 Good 11 12 µg/m3
10:00 AM TIM PM2.5 24 Good 18 3 µg/m3
10:00 AM WBY NO2 1 Good 13 14 PPB
10:00 AM WBY NO2 1 Good 13 14 PPB
10:00 AM WBY O3 8 Good 28 30 PPB
10:00 AM WBY PM10 24 Good 26 28 µg/m3
10:00 AM WBY PM2.5 24 Good 23 4 µg/m3
10:00 AM WBY SO2 1 Good 1 1 PPB
10:00 AM WBY SO2 1 Good 1 1 PPB
9:00 AM ACAD O3 8 Good 29 31 PPB
9:00 AM ACC PM10 24 Good 8 9 µg/m3
9:00 AM ACC PM2.5 24 Good 17 3 µg/m3
9:00 AM ADB PM10 24 Good 39 42 µg/m3
9:00 AM ADB PM2.5 24 Good 37 6 µg/m3
9:00 AM ALA PM10 24 Good 19 21 µg/m3
9:00 AM ALA PM2.5 24 Good 23 4 µg/m3
9:00 AM ASPN O3 8 Good 40 43 PPB
9:00 AM ASPN2 PM10 24 Good 13 14 µg/m3
9:00 AM ASPN2 PM2.5 24 Good 19 3 µg/m3
9:00 AM AURE O3 8 Good 36 39 PPB
9:00 AM BHWK O3 8 Good 36 39 PPB
9:00 AM BOU PM10 24 Good 13 14 µg/m3
9:00 AM BOU PM2.5 24 Good 19 3 µg/m3
9:00 AM BOUR O3 8 Good 31 34 PPB
9:00 AM CAMP NO2 1 Good 16 17 PPB
9:00 AM CAMP NO2 1 Good 16 17 PPB
9:00 AM CAMP O3 8 Good 30 32 PPB
9:00 AM CAMP PM10 24 Good 12 13 µg/m3
9:00 AM CAMP PM2.5 24 Good 23 4 µg/m3
9:00 AM CAN PM10 24 Good 30 32 µg/m3
9:00 AM CAN PM2.5 24 Good 24 4 µg/m3
9:00 AM CASA CO 8 Good 1 0.1 PPM
9:00 AM CASA NO2 1 Good 12 13 PPB
9:00 AM CASA O3 8 Good 28 30 PPB
9:00 AM CASA PM10 24 Good 18 19 µg/m3
9:00 AM CASA PM2.5 24 Good 21 3 µg/m3
9:00 AM CCOL CO 8 Good 1 0.1 PPM
9:00 AM CCOL PM10 24 Good 15 16 µg/m3
9:00 AM CCOL PM2.5 24 Good 23 4 µg/m3
9:00 AM CHAT O3 8 Good 31 34 PPB
9:00 AM CHAT PM10 24 Good 21 23 µg/m3
9:00 AM CHAT PM2.5 24 Good 21 3 µg/m3
9:00 AM CTZ O3 8 Good 29 31 PPB
9:00 AM EVG O3 8 Good 31 33 PPB
9:00 AM FOS NO2 1 Good 4 4 PPB
9:00 AM FOS O3 8 Good 22 24 PPB
9:00 AM FTC CO 8 Good 1 0.1 PPM
9:00 AM FTC O3 8 Good 24 26 PPB
9:00 AM FTCF PM10 24 Good 9 10 µg/m3
9:00 AM FTCF PM2.5 24 Good 18 3 µg/m3
9:00 AM FTCW O3 8 Good 31 34 PPB
9:00 AM GJPB PM10 24 Good 10 11 µg/m3
9:00 AM GJPB PM2.5 24 Good 20 3 µg/m3
9:00 AM GREH PM10 24 Good 6 7 µg/m3
9:00 AM GREH PM2.5 24 Good 16 2 µg/m3
9:00 AM GRET CO 8 Good 1 0.1 PPM
9:00 AM GRET O3 8 Good 26 28 PPB
9:00 AM HLD O3 8 Good 25 27 PPB
9:00 AM I25DEN CO 8 Good 3 0.3 PPM
9:00 AM I25DEN NO2 1 Good 15 16 PPB
9:00 AM I25DEN PM10 24 Good 11 12 µg/m3
9:00 AM I25DEN PM2.5 24 Good 24 4 µg/m3
9:00 AM I25GLO NO2 1 Good 21 22 PPB
9:00 AM I25GLO PM10 24 Good 20 22 µg/m3
9:00 AM I25GLO PM2.5 24 Good 26 4 µg/m3
9:00 AM LAST NO2 1 Good 2 2 PPB
9:00 AM LAST O3 8 Good 32 35 PPB
9:00 AM LMB PM10 24 Good 18 19 µg/m3
9:00 AM LMB PM2.5 24 Good 22 4 µg/m3
9:00 AM LNGM PM10 24 Good 33 36 µg/m3
9:00 AM LNGM PM2.5 24 Good 23 4 µg/m3
9:00 AM MAN O3 8 Good 37 40 PPB
9:00 AM NJH PM10 24 Good 19 21 µg/m3
9:00 AM NJH PM2.5 24 Good 22 4 µg/m3
9:00 AM NREL O3 8 Good 37 40 PPB
9:00 AM PAG PM10 24 Good 16 17 µg/m3
9:00 AM PAG PM2.5 24 Good 23 4 µg/m3
9:00 AM PAL O3 8 Good 39 42 PPB
9:00 AM PFS PM10 24 Good 14 15 µg/m3
9:00 AM PFS PM2.5 24 Good 20 3 µg/m3
9:00 AM PMS PM2.5 24 Good 28 5 µg/m3
9:00 AM PWES O3 8 Good 37 40 PPB
9:00 AM RFN NO2 1 Good 3 3 PPB
9:00 AM RFN O3 8 Good 42 45 PPB
9:00 AM RIFL PM2.5 24 Good 24 4 µg/m3
9:00 AM RIFLO3 O3 8 Good 14 15 PPB
9:00 AM SSMB PM10 24 Good 10 11 µg/m3
9:00 AM SSMB PM2.5 24 Good 19 3 µg/m3
9:00 AM TEL PM10 24 Good 21 23 µg/m3
9:00 AM TEL PM2.5 24 Good 24 4 µg/m3
9:00 AM TIM NO2 1 Good 5 5 PPB
9:00 AM TIM O3 8 Good 22 24 PPB
9:00 AM TIM PM10 24 Good 10 11 µg/m3
9:00 AM TIM PM2.5 24 Good 17 3 µg/m3
9:00 AM WBY NO2 1 Good 18 19 PPB
9:00 AM WBY NO2 1 Good 18 19 PPB
9:00 AM WBY O3 8 Good 29 31 PPB
9:00 AM WBY PM10 24 Good 26 28 µg/m3
9:00 AM WBY PM2.5 24 Good 23 4 µg/m3
9:00 AM WBY SO2 1 Good 1 1 PPB
9:00 AM WBY SO2 1 Good 1 1 PPB
8:00 AM ACAD O3 8 Good 28 30 PPB
8:00 AM ACC PM10 24 Good 8 9 µg/m3
8:00 AM ACC PM2.5 24 Good 17 3 µg/m3
8:00 AM ADB PM10 24 Good 37 40 µg/m3
8:00 AM ADB PM2.5 24 Good 36 6 µg/m3
8:00 AM ALA PM10 24 Good 19 21 µg/m3
8:00 AM ALA PM2.5 24 Good 23 4 µg/m3
8:00 AM ASPN O3 8 Good 40 43 PPB
8:00 AM ASPN2 PM10 24 Good 13 14 µg/m3
8:00 AM ASPN2 PM2.5 24 Good 19 3 µg/m3
8:00 AM AURE O3 8 Good 34 37 PPB
8:00 AM BHWK O3 8 Good 35 38 PPB
8:00 AM BOU PM10 24 Good 13 14 µg/m3
8:00 AM BOU PM2.5 24 Good 18 3 µg/m3
8:00 AM BOUR O3 8 Good 30 32 PPB
8:00 AM CAMP NO2 1 Good 21 22 PPB
8:00 AM CAMP NO2 1 Good 21 22 PPB
8:00 AM CAMP O3 8 Good 31 34 PPB
8:00 AM CAMP PM10 24 Good 12 13 µg/m3
8:00 AM CAMP PM2.5 24 Good 22 4 µg/m3
8:00 AM CAN PM10 24 Good 29 31 µg/m3
8:00 AM CAN PM2.5 24 Good 23 4 µg/m3
8:00 AM CASA CO 8 Good 1 0.1 PPM
8:00 AM CASA NO2 1 Good 8 8 PPB
8:00 AM CASA O3 8 Good 29 31 PPB
8:00 AM CASA PM10 24 Good 19 20 µg/m3
8:00 AM CASA PM2.5 24 Good 21 3 µg/m3
8:00 AM CASA SO2 1 Good 1 1 PPB
8:00 AM CCOL CO 8 Good 1 0.1 PPM
8:00 AM CCOL PM10 24 Good 15 16 µg/m3
8:00 AM CCOL PM2.5 24 Good 23 4 µg/m3
8:00 AM CHAT O3 8 Good 31 34 PPB
8:00 AM CHAT PM10 24 Good 21 23 µg/m3
8:00 AM CHAT PM2.5 24 Good 21 3 µg/m3
8:00 AM CTZ O3 8 Good 29 31 PPB
8:00 AM EVG O3 8 Good 30 32 PPB
8:00 AM FOS NO2 1 Good 9 10 PPB
8:00 AM FOS O3 8 Good 22 24 PPB
8:00 AM FTC CO 8 Good 1 0.1 PPM
8:00 AM FTC O3 8 Good 23 25 PPB
8:00 AM FTCF PM10 24 Good 9 10 µg/m3
8:00 AM FTCF PM2.5 24 Good 17 3 µg/m3
8:00 AM FTCW O3 8 Good 31 33 PPB
8:00 AM GJPB PM10 24 Good 10 11 µg/m3
8:00 AM GJPB PM2.5 24 Good 20 3 µg/m3
8:00 AM GREH PM10 24 Good 6 7 µg/m3
8:00 AM GREH PM2.5 24 Good 15 2 µg/m3
8:00 AM GRET CO 8 Good 1 0.1 PPM
8:00 AM GRET O3 8 Good 25 27 PPB
8:00 AM HLD O3 8 Good 25 27 PPB
8:00 AM I25DEN CO 8 Good 3 0.3 PPM
8:00 AM I25DEN NO2 1 Good 21 22 PPB
8:00 AM I25DEN PM10 24 Good 12 13 µg/m3
8:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
8:00 AM I25GLO NO2 1 Good 26 28 PPB
8:00 AM I25GLO PM10 24 Good 21 23 µg/m3
8:00 AM I25GLO PM2.5 24 Good 27 4 µg/m3
8:00 AM LAST NO2 1 Good 2 2 PPB
8:00 AM LAST O3 8 Good 31 34 PPB
8:00 AM LMB PM10 24 Good 18 19 µg/m3
8:00 AM LMB PM2.5 24 Good 22 4 µg/m3
8:00 AM LNGM PM10 24 Good 33 36 µg/m3
8:00 AM LNGM PM2.5 24 Good 23 4 µg/m3
8:00 AM MAN O3 8 Good 36 39 PPB
8:00 AM NJH PM10 24 Good 19 20 µg/m3
8:00 AM NJH PM2.5 24 Good 22 4 µg/m3
8:00 AM NREL O3 8 Good 37 40 PPB
8:00 AM PAG PM10 24 Good 16 17 µg/m3
8:00 AM PAG PM2.5 24 Good 22 4 µg/m3
8:00 AM PAL O3 8 Good 40 43 PPB
8:00 AM PFS PM10 24 Good 14 15 µg/m3
8:00 AM PFS PM2.5 24 Good 19 3 µg/m3
8:00 AM PMS PM2.5 24 Good 27 4 µg/m3
8:00 AM PWES O3 8 Good 37 40 PPB
8:00 AM RFN NO2 1 Good 3 3 PPB
8:00 AM RFN O3 8 Good 42 45 PPB
8:00 AM RIFL PM2.5 24 Good 26 4 µg/m3
8:00 AM RIFLO3 O3 8 Good 15 16 PPB
8:00 AM SSMB PM10 24 Good 10 11 µg/m3
8:00 AM SSMB PM2.5 24 Good 19 3 µg/m3
8:00 AM TEL PM10 24 Good 21 23 µg/m3
8:00 AM TEL PM2.5 24 Good 24 4 µg/m3
8:00 AM TIM NO2 1 Good 7 7 PPB
8:00 AM TIM O3 8 Good 21 23 PPB
8:00 AM TIM PM10 24 Good 10 11 µg/m3
8:00 AM TIM PM2.5 24 Good 17 3 µg/m3
8:00 AM WBY NO2 1 Good 17 18 PPB
8:00 AM WBY NO2 1 Good 17 18 PPB
8:00 AM WBY O3 8 Good 30 32 PPB
8:00 AM WBY PM10 24 Good 25 27 µg/m3
8:00 AM WBY PM2.5 24 Good 22 3 µg/m3
7:00 AM ACAD O3 8 Good 27 29 PPB
7:00 AM ACC PM10 24 Good 8 9 µg/m3
7:00 AM ACC PM2.5 24 Good 17 3 µg/m3
7:00 AM ADB PM10 24 Good 36 39 µg/m3
7:00 AM ADB PM2.5 24 Good 35 6 µg/m3
7:00 AM ALA PM10 24 Good 19 21 µg/m3
7:00 AM ALA PM2.5 24 Good 23 4 µg/m3
7:00 AM ASPN O3 8 Good 41 44 PPB
7:00 AM ASPN2 PM10 24 Good 13 14 µg/m3
7:00 AM ASPN2 PM2.5 24 Good 19 3 µg/m3
7:00 AM AURE O3 8 Good 33 36 PPB
7:00 AM BHWK O3 8 Good 35 38 PPB
7:00 AM BOU PM10 24 Good 13 14 µg/m3
7:00 AM BOU PM2.5 24 Good 18 3 µg/m3
7:00 AM BOUR O3 8 Good 31 33 PPB
7:00 AM CAMP NO2 1 Good 27 29 PPB
7:00 AM CAMP NO2 1 Good 27 29 PPB
7:00 AM CAMP O3 8 Good 34 37 PPB
7:00 AM CAMP PM10 24 Good 12 13 µg/m3
7:00 AM CAMP PM2.5 24 Good 22 4 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 29 31 µg/m3
7:00 AM CAN PM2.5 24 Good 23 4 µg/m3
7:00 AM CASA CO 8 Good 1 0.1 PPM
7:00 AM CASA NO2 1 Good 12 13 PPB
7:00 AM CASA O3 8 Good 30 32 PPB
7:00 AM CASA PM10 24 Good 19 20 µg/m3
7:00 AM CASA PM2.5 24 Good 21 3 µg/m3
7:00 AM CASA SO2 1 Good 1 1 PPB
7:00 AM CCOL CO 8 Good 1 0.1 PPM
7:00 AM CCOL PM10 24 Good 14 15 µg/m3
7:00 AM CCOL PM2.5 24 Good 22 4 µg/m3
7:00 AM CHAT O3 8 Good 32 35 PPB
7:00 AM CHAT PM10 24 Good 21 23 µg/m3
7:00 AM CHAT PM2.5 24 Good 21 3 µg/m3
7:00 AM CTZ O3 8 Good 30 32 PPB
7:00 AM EVG O3 8 Good 30 32 PPB
7:00 AM FOS NO2 1 Good 7 7 PPB
7:00 AM FOS O3 8 Good 24 26 PPB
7:00 AM FTC CO 8 Good 1 0.1 PPM
7:00 AM FTC O3 8 Good 23 25 PPB
7:00 AM FTCF PM10 24 Good 8 9 µg/m3
7:00 AM FTCF PM2.5 24 Good 16 2 µg/m3
7:00 AM FTCW O3 8 Good 31 33 PPB
7:00 AM GJPB PM10 24 Good 10 11 µg/m3
7:00 AM GJPB PM2.5 24 Good 20 3 µg/m3
7:00 AM GREH PM10 24 Good 6 6 µg/m3
7:00 AM GREH PM2.5 24 Good 14 2 µg/m3
7:00 AM GRET CO 8 Good 1 0.1 PPM
7:00 AM GRET O3 8 Good 26 28 PPB
7:00 AM HLD O3 8 Good 26 28 PPB
7:00 AM I25DEN CO 8 Good 2 0.2 PPM
7:00 AM I25DEN NO2 1 Good 24 25 PPB
7:00 AM I25DEN PM10 24 Good 12 13 µg/m3
7:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
7:00 AM I25GLO NO2 1 Good 30 32 PPB
7:00 AM I25GLO PM10 24 Good 23 25 µg/m3
7:00 AM I25GLO PM2.5 24 Good 27 4 µg/m3
7:00 AM LAST NO2 1 Good 4 4 PPB
7:00 AM LAST O3 8 Good 31 33 PPB
7:00 AM LMB PM10 24 Good 18 19 µg/m3
7:00 AM LMB PM2.5 24 Good 22 4 µg/m3
7:00 AM LNGM PM10 24 Good 32 35 µg/m3
7:00 AM LNGM PM2.5 24 Good 23 4 µg/m3
7:00 AM MAN O3 8 Good 37 40 PPB
7:00 AM NJH PM10 24 Good 19 20 µg/m3
7:00 AM NJH PM2.5 24 Good 22 4 µg/m3
7:00 AM NREL O3 8 Good 37 40 PPB
7:00 AM PAG PM10 24 Good 15 16 µg/m3
7:00 AM PAG PM2.5 24 Good 22 4 µg/m3
7:00 AM PAL O3 8 Good 41 44 PPB
7:00 AM PFS PM10 24 Good 14 15 µg/m3
7:00 AM PFS PM2.5 24 Good 19 3 µg/m3
7:00 AM PMS PM2.5 24 Good 27 4 µg/m3
7:00 AM PWES O3 8 Good 36 39 PPB
7:00 AM RFN NO2 1 Good 2 2 PPB
7:00 AM RFN O3 8 Good 42 45 PPB
7:00 AM RIFL PM2.5 24 Good 27 4 µg/m3
7:00 AM RIFLO3 O3 8 Good 15 16 PPB
7:00 AM SSMB PM10 24 Good 10 11 µg/m3
7:00 AM SSMB PM2.5 24 Good 19 3 µg/m3
7:00 AM TEL PM10 24 Good 20 22 µg/m3
7:00 AM TEL PM2.5 24 Good 24 4 µg/m3
7:00 AM TIM NO2 1 Good 8 8 PPB
7:00 AM TIM O3 8 Good 21 23 PPB
7:00 AM TIM PM10 24 Good 12 13 µg/m3
7:00 AM TIM PM2.5 24 Good 17 3 µg/m3
7:00 AM WBY NO2 1 Good 21 22 PPB
7:00 AM WBY NO2 1 Good 21 22 PPB
7:00 AM WBY O3 8 Good 31 34 PPB
7:00 AM WBY PM10 24 Good 25 27 µg/m3
7:00 AM WBY PM2.5 24 Good 22 3 µg/m3
6:00 AM ACAD O3 8 Good 26 28 PPB
6:00 AM ACC PM10 24 Good 12 13 µg/m3
6:00 AM ACC PM2.5 24 Good 18 3 µg/m3
6:00 AM ADB PM10 24 Good 35 38 µg/m3
6:00 AM ADB PM2.5 24 Good 35 6 µg/m3
6:00 AM ALA PM10 24 Good 20 22 µg/m3
6:00 AM ALA PM2.5 24 Good 24 4 µg/m3
6:00 AM ASPN O3 8 Good 41 44 PPB
6:00 AM ASPN2 PM10 24 Good 13 14 µg/m3
6:00 AM ASPN2 PM2.5 24 Good 19 3 µg/m3
6:00 AM AURE O3 8 Good 33 36 PPB
6:00 AM BHWK O3 8 Good 36 39 PPB
6:00 AM BOU PM10 24 Good 13 14 µg/m3
6:00 AM BOU PM2.5 24 Good 18 3 µg/m3
6:00 AM BOUR O3 8 Good 31 34 PPB
6:00 AM CAMP NO2 1 Good 24 25 PPB
6:00 AM CAMP NO2 1 Good 24 25 PPB
6:00 AM CAMP O3 8 Good 38 41 PPB
6:00 AM CAMP PM10 24 Good 13 14 µg/m3
6:00 AM CAMP PM2.5 24 Good 23 4 µg/m3
6:00 AM CAN PM10 24 Good 29 31 µg/m3
6:00 AM CAN PM2.5 24 Good 23 4 µg/m3
6:00 AM CASA CO 8 Good 1 0.1 PPM
6:00 AM CASA NO2 1 Good 22 23 PPB
6:00 AM CASA O3 8 Good 31 34 PPB
6:00 AM CASA PM10 24 Good 19 21 µg/m3
6:00 AM CASA PM2.5 24 Good 22 3 µg/m3
6:00 AM CASA SO2 1 Good 1 1 PPB
6:00 AM CCOL CO 8 Good 1 0.1 PPM
6:00 AM CCOL PM10 24 Good 14 15 µg/m3
6:00 AM CCOL PM2.5 24 Good 22 4 µg/m3
6:00 AM CHAT O3 8 Good 34 37 PPB
6:00 AM CHAT PM10 24 Good 21 23 µg/m3
6:00 AM CHAT PM2.5 24 Good 21 3 µg/m3
6:00 AM CTZ O3 8 Good 32 35 PPB
6:00 AM EVG O3 8 Good 32 35 PPB
6:00 AM FOS NO2 1 Good 8 9 PPB
6:00 AM FOS O3 8 Good 27 29 PPB
6:00 AM FTC CO 8 Good 1 0.1 PPM
6:00 AM FTC O3 8 Good 26 28 PPB
6:00 AM FTCF PM10 24 Good 8 9 µg/m3
6:00 AM FTCF PM2.5 24 Good 16 2 µg/m3
6:00 AM FTCW O3 8 Good 31 34 PPB
6:00 AM GJPB PM10 24 Good 11 12 µg/m3
6:00 AM GJPB PM2.5 24 Good 21 3 µg/m3
6:00 AM GREH PM10 24 Good 6 6 µg/m3
6:00 AM GREH PM2.5 24 Good 13 2 µg/m3
6:00 AM GRET CO 8 Good 1 0.1 PPM
6:00 AM GRET O3 8 Good 28 30 PPB
6:00 AM HLD O3 8 Good 27 29 PPB
6:00 AM I25DEN CO 8 Good 2 0.2 PPM
6:00 AM I25DEN NO2 1 Good 27 29 PPB
6:00 AM I25DEN PM10 24 Good 12 13 µg/m3
6:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
6:00 AM I25GLO NO2 1 Good 37 39 PPB
6:00 AM I25GLO PM10 24 Good 24 26 µg/m3
6:00 AM I25GLO PM2.5 24 Good 27 4 µg/m3
6:00 AM LAST NO2 1 Good 4 4 PPB
6:00 AM LAST O3 8 Good 31 33 PPB
6:00 AM LMB PM10 24 Good 18 19 µg/m3
6:00 AM LMB PM2.5 24 Good 22 3 µg/m3
6:00 AM LNGM PM10 24 Good 32 35 µg/m3
6:00 AM LNGM PM2.5 24 Good 23 4 µg/m3
6:00 AM MAN O3 8 Good 38 41 PPB
6:00 AM NJH PM10 24 Good 19 20 µg/m3
6:00 AM NJH PM2.5 24 Good 22 4 µg/m3
6:00 AM NREL O3 8 Good 38 41 PPB
6:00 AM PAG PM10 24 Good 15 16 µg/m3
6:00 AM PAG PM2.5 24 Good 22 4 µg/m3
6:00 AM PAL O3 8 Good 41 44 PPB
6:00 AM PFS PM10 24 Good 14 15 µg/m3
6:00 AM PFS PM2.5 24 Good 19 3 µg/m3
6:00 AM PMS PM2.5 24 Good 27 4 µg/m3
6:00 AM PWES O3 8 Good 37 40 PPB
6:00 AM RFN NO2 1 Good 1 1 PPB
6:00 AM RFN O3 8 Good 43 46 PPB
6:00 AM RIFL PM2.5 24 Good 27 4 µg/m3
6:00 AM RIFLO3 O3 8 Good 15 16 PPB
6:00 AM SSMB PM10 24 Good 9 10 µg/m3
6:00 AM SSMB PM2.5 24 Good 18 3 µg/m3
6:00 AM TEL PM10 24 Good 19 20 µg/m3
6:00 AM TEL PM2.5 24 Good 23 4 µg/m3
6:00 AM TIM NO2 1 Good 10 11 PPB
6:00 AM TIM O3 8 Good 24 26 PPB
6:00 AM TIM PM10 24 Good 11 12 µg/m3
6:00 AM TIM PM2.5 24 Good 16 2 µg/m3
6:00 AM WBY NO2 1 Good 23 24 PPB
6:00 AM WBY NO2 1 Good 23 24 PPB
6:00 AM WBY O3 8 Good 34 37 PPB
6:00 AM WBY PM10 24 Good 24 26 µg/m3
6:00 AM WBY PM2.5 24 Good 21 3 µg/m3
5:00 AM ACAD O3 8 Good 27 29 PPB
5:00 AM ACC PM10 24 Good 12 13 µg/m3
5:00 AM ACC PM2.5 24 Good 17 3 µg/m3
5:00 AM ADB PM10 24 Good 37 40 µg/m3
5:00 AM ADB PM2.5 24 Good 36 6 µg/m3
5:00 AM ALA PM10 24 Good 20 22 µg/m3
5:00 AM ALA PM2.5 24 Good 23 4 µg/m3
5:00 AM ASPN O3 8 Good 41 44 PPB
5:00 AM ASPN2 PM10 24 Good 12 13 µg/m3
5:00 AM ASPN2 PM2.5 24 Good 19 3 µg/m3
5:00 AM AURE O3 8 Good 36 39 PPB
5:00 AM BHWK O3 8 Good 39 42 PPB
5:00 AM BOU PM10 24 Good 13 14 µg/m3
5:00 AM BOU PM2.5 24 Good 18 3 µg/m3
5:00 AM BOUR O3 8 Good 33 36 PPB
5:00 AM CAMP NO2 1 Good 10 11 PPB
5:00 AM CAMP NO2 1 Good 10 11 PPB
5:00 AM CAMP O3 8 Good 41 44 PPB
5:00 AM CAMP PM10 24 Good 14 15 µg/m3
5:00 AM CAMP PM2.5 24 Good 23 4 µg/m3
5:00 AM CAN PM10 24 Good 29 31 µg/m3
5:00 AM CAN PM2.5 24 Good 23 4 µg/m3
5:00 AM CASA CO 8 Good 1 0.1 PPM
5:00 AM CASA NO2 1 Good 22 23 PPB
5:00 AM CASA O3 8 Good 35 38 PPB
5:00 AM CASA PM10 24 Good 19 21 µg/m3
5:00 AM CASA PM2.5 24 Good 22 3 µg/m3
5:00 AM CCOL CO 8 Good 1 0.1 PPM
5:00 AM CCOL PM10 24 Good 14 15 µg/m3
5:00 AM CCOL PM2.5 24 Good 22 3 µg/m3
5:00 AM CHAT O3 8 Good 37 40 PPB
5:00 AM CHAT PM10 24 Good 21 23 µg/m3
5:00 AM CHAT PM2.5 24 Good 20 3 µg/m3
5:00 AM CTZ O3 8 Good 33 36 PPB
5:00 AM EVG O3 8 Good 35 38 PPB
5:00 AM FOS NO2 1 Good 8 9 PPB
5:00 AM FOS O3 8 Good 29 31 PPB
5:00 AM FTC CO 8 Good 1 0.1 PPM
5:00 AM FTC O3 8 Good 29 31 PPB
5:00 AM FTCF PM10 24 Good 8 9 µg/m3
5:00 AM FTCF PM2.5 24 Good 15 2 µg/m3
5:00 AM FTCW O3 8 Good 34 37 PPB
5:00 AM GJPB PM10 24 Good 10 11 µg/m3
5:00 AM GJPB PM2.5 24 Good 21 3 µg/m3
5:00 AM GREH PM10 24 Good 6 6 µg/m3
5:00 AM GREH PM2.5 24 Good 13 2 µg/m3
5:00 AM GRET CO 8 Good 1 0.1 PPM
5:00 AM GRET O3 8 Good 31 34 PPB
5:00 AM HLD O3 8 Good 29 31 PPB
5:00 AM I25DEN CO 8 Good 1 0.1 PPM
5:00 AM I25DEN NO2 1 Good 25 26 PPB
5:00 AM I25DEN PM10 24 Good 12 13 µg/m3
5:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
5:00 AM I25GLO NO2 1 Good 25 27 PPB
5:00 AM I25GLO PM10 24 Good 24 26 µg/m3
5:00 AM I25GLO PM2.5 24 Good 27 4 µg/m3
5:00 AM LAST NO2 1 Good 6 6 PPB
5:00 AM LAST O3 8 Good 32 35 PPB
5:00 AM LMB PM10 24 Good 18 19 µg/m3
5:00 AM LMB PM2.5 24 Good 22 3 µg/m3
5:00 AM LNGM PM10 24 Good 32 35 µg/m3
5:00 AM LNGM PM2.5 24 Good 23 4 µg/m3
5:00 AM MAN O3 8 Good 40 43 PPB
5:00 AM NJH PM10 24 Good 19 20 µg/m3
5:00 AM NJH PM2.5 24 Good 22 4 µg/m3
5:00 AM NREL O3 8 Good 40 43 PPB
5:00 AM PAG PM10 24 Good 15 16 µg/m3
5:00 AM PAG PM2.5 24 Good 22 3 µg/m3
5:00 AM PAL O3 8 Good 43 46 PPB
5:00 AM PFS PM10 24 Good 14 15 µg/m3
5:00 AM PFS PM2.5 24 Good 19 3 µg/m3
5:00 AM PMS PM2.5 24 Good 27 4 µg/m3
5:00 AM PWES O3 8 Good 39 42 PPB
5:00 AM RFN NO2 1 Good 1 1 PPB
5:00 AM RFN O3 8 Good 43 46 PPB
5:00 AM RIFL PM2.5 24 Good 28 5 µg/m3
5:00 AM RIFLO3 O3 8 Good 18 19 PPB
5:00 AM SSMB PM10 24 Good 9 10 µg/m3
5:00 AM SSMB PM2.5 24 Good 18 3 µg/m3
5:00 AM TEL PM10 24 Good 19 20 µg/m3
5:00 AM TEL PM2.5 24 Good 23 4 µg/m3
5:00 AM TIM NO2 1 Good 8 8 PPB
5:00 AM TIM O3 8 Good 28 30 PPB
5:00 AM TIM PM10 24 Good 11 12 µg/m3
5:00 AM TIM PM2.5 24 Good 16 2 µg/m3
5:00 AM WBY NO2 1 Good 12 13 PPB
5:00 AM WBY NO2 1 Good 12 13 PPB
5:00 AM WBY O3 8 Good 38 41 PPB
5:00 AM WBY PM10 24 Good 23 25 µg/m3
5:00 AM WBY PM2.5 24 Good 21 3 µg/m3
4:00 AM ACAD O3 8 Good 29 31 PPB
4:00 AM ACC PM10 24 Good 12 13 µg/m3
4:00 AM ACC PM2.5 24 Good 17 3 µg/m3
4:00 AM ADB PM10 24 Good 37 40 µg/m3
4:00 AM ADB PM2.5 24 Good 37 6 µg/m3
4:00 AM ALA PM10 24 Good 20 22 µg/m3
4:00 AM ALA PM2.5 24 Good 23 4 µg/m3
4:00 AM ASPN O3 8 Good 41 44 PPB
4:00 AM ASPN2 PM10 24 Good 12 13 µg/m3
4:00 AM ASPN2 PM2.5 24 Good 19 3 µg/m3
4:00 AM AURE O3 8 Good 38 41 PPB
4:00 AM BHWK O3 8 Good 41 44 PPB
4:00 AM BOU PM10 24 Good 13 14 µg/m3
4:00 AM BOU PM2.5 24 Good 18 3 µg/m3
4:00 AM BOUR O3 8 Good 36 39 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 43 46 PPB
4:00 AM CAMP PM10 24 Good 14 15 µg/m3
4:00 AM CAMP PM2.5 24 Good 24 4 µg/m3
4:00 AM CAN PM10 24 Good 28 30 µg/m3
4:00 AM CAN PM2.5 24 Good 23 4 µg/m3
4:00 AM CASA CO 8 Good 1 0.1 PPM
4:00 AM CASA NO2 1 Good 13 14 PPB
4:00 AM CASA O3 8 Good 40 43 PPB
4:00 AM CASA PM10 24 Good 19 21 µg/m3
4:00 AM CASA PM2.5 24 Good 22 3 µg/m3
4:00 AM CCOL CO 8 Good 1 0.1 PPM
4:00 AM CCOL PM10 24 Good 14 15 µg/m3
4:00 AM CCOL PM2.5 24 Good 22 3 µg/m3
4:00 AM CHAT O3 8 Good 40 43 PPB
4:00 AM CHAT PM10 24 Good 21 23 µg/m3
4:00 AM CHAT PM2.5 24 Good 20 3 µg/m3
4:00 AM CTZ O3 8 Good 35 38 PPB
4:00 AM EVG O3 8 Good 38 41 PPB
4:00 AM FOS NO2 1 Good 5 5 PPB
4:00 AM FOS O3 8 Good 33 36 PPB
4:00 AM FTC CO 8 Good 1 0.1 PPM
4:00 AM FTC O3 8 Good 31 34 PPB
4:00 AM FTCF PM10 24 Good 8 9 µg/m3
4:00 AM FTCF PM2.5 24 Good 15 2 µg/m3
4:00 AM FTCW O3 8 Good 36 39 PPB
4:00 AM GJPB PM10 24 Good 11 12 µg/m3
4:00 AM GJPB PM2.5 24 Good 21 3 µg/m3
4:00 AM GREH PM10 24 Good 6 6 µg/m3
4:00 AM GREH PM2.5 24 Good 13 2 µg/m3
4:00 AM GRET CO 8 Good 1 0.1 PPM
4:00 AM GRET O3 8 Good 35 38 PPB
4:00 AM HLD O3 8 Good 31 33 PPB
4:00 AM I25DEN CO 8 Good 1 0.1 PPM
4:00 AM I25DEN NO2 1 Good 16 17 PPB
4:00 AM I25DEN PM10 24 Good 12 13 µg/m3
4:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
4:00 AM I25GLO NO2 1 Good 11 12 PPB
4:00 AM I25GLO PM10 24 Good 23 25 µg/m3
4:00 AM I25GLO PM2.5 24 Good 27 4 µg/m3
4:00 AM LAST NO2 1 Good 6 6 PPB
4:00 AM LAST O3 8 Good 36 39 PPB
4:00 AM LMB PM10 24 Good 19 20 µg/m3
4:00 AM LMB PM2.5 24 Good 21 3 µg/m3
4:00 AM LNGM PM10 24 Good 31 34 µg/m3
4:00 AM LNGM PM2.5 24 Good 22 4 µg/m3
4:00 AM MAN O3 8 Good 41 44 PPB
4:00 AM NJH PM10 24 Good 19 20 µg/m3
4:00 AM NJH PM2.5 24 Good 22 4 µg/m3
4:00 AM NREL O3 8 Good 42 45 PPB
4:00 AM PAG PM10 24 Good 15 16 µg/m3
4:00 AM PAG PM2.5 24 Good 22 3 µg/m3
4:00 AM PAL O3 8 Good 44 47 PPB
4:00 AM PFS PM10 24 Good 14 15 µg/m3
4:00 AM PFS PM2.5 24 Good 19 3 µg/m3
4:00 AM PMS PM2.5 24 Good 26 4 µg/m3
4:00 AM PWES O3 8 Good 41 44 PPB
4:00 AM RFN NO2 1 Good 1 1 PPB
4:00 AM RFN O3 8 Good 44 47 PPB
4:00 AM RIFL PM2.5 24 Good 28 5 µg/m3
4:00 AM RIFLO3 O3 8 Good 19 20 PPB
4:00 AM SSMB PM10 24 Good 9 10 µg/m3
4:00 AM SSMB PM2.5 24 Good 18 3 µg/m3
4:00 AM TEL PM10 24 Good 19 20 µg/m3
4:00 AM TEL PM2.5 24 Good 23 4 µg/m3
4:00 AM TIM NO2 1 Good 6 6 PPB
4:00 AM TIM O3 8 Good 32 35 PPB
4:00 AM TIM PM10 24 Good 11 12 µg/m3
4:00 AM TIM PM2.5 24 Good 16 2 µg/m3
4:00 AM WBY NO2 1 Good 6 6 PPB
4:00 AM WBY NO2 1 Good 6 6 PPB
4:00 AM WBY O3 8 Good 41 44 PPB
4:00 AM WBY PM10 24 Good 24 26 µg/m3
4:00 AM WBY PM2.5 24 Good 22 3 µg/m3
3:00 AM ACAD O3 8 Good 31 33 PPB
3:00 AM ACC PM10 24 Good 12 13 µg/m3
3:00 AM ACC PM2.5 24 Good 17 3 µg/m3
3:00 AM ADB PM10 24 Good 38 41 µg/m3
3:00 AM ADB PM2.5 24 Good 37 6 µg/m3
3:00 AM ALA PM10 24 Good 19 21 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 12 13 µg/m3
3:00 AM ASPN2 PM2.5 24 Good 19 3 µg/m3
3:00 AM AURE O3 8 Good 40 43 PPB
3:00 AM BHWK O3 8 Good 43 46 PPB
3:00 AM BOU PM10 24 Good 13 14 µg/m3
3:00 AM BOU PM2.5 24 Good 18 3 µg/m3
3:00 AM BOUR O3 8 Good 37 40 PPB
3:00 AM CAMP NO2 1 Good 5 5 PPB
3:00 AM CAMP NO2 1 Good 5 5 PPB
3:00 AM CAMP O3 8 Good 45 49 PPB
3:00 AM CAMP PM10 24 Good 14 15 µg/m3
3:00 AM CAMP PM2.5 24 Good 24 4 µg/m3
3:00 AM CAN PM10 24 Good 28 30 µg/m3
3:00 AM CAN PM2.5 24 Good 23 4 µg/m3
3:00 AM CASA CO 8 Good 1 0.1 PPM
3:00 AM CASA NO2 1 Good 6 6 PPB
3:00 AM CASA O3 8 Good 44 47 PPB
3:00 AM CASA PM10 24 Good 19 21 µg/m3
3:00 AM CASA PM2.5 24 Good 22 3 µg/m3
3:00 AM CCOL CO 8 Good 1 0.1 PPM
3:00 AM CCOL PM10 24 Good 14 15 µg/m3
3:00 AM CCOL PM2.5 24 Good 22 3 µg/m3
3:00 AM CHAT O3 8 Good 44 48 PPB
3:00 AM CHAT PM10 24 Good 21 23 µg/m3
3:00 AM CHAT PM2.5 24 Good 20 3 µg/m3
3:00 AM CTZ O3 8 Good 38 41 PPB
3:00 AM EVG O3 8 Good 40 43 PPB
3:00 AM FOS NO2 1 Good 6 6 PPB
3:00 AM FOS O3 8 Good 37 40 PPB
3:00 AM FTC CO 8 Good 1 0.1 PPM
3:00 AM FTC O3 8 Good 34 37 PPB
3:00 AM FTCF PM10 24 Good 8 9 µg/m3
3:00 AM FTCF PM2.5 24 Good 15 2 µg/m3
3:00 AM FTCW O3 8 Good 39 42 PPB
3:00 AM GJPB PM10 24 Good 10 11 µg/m3
3:00 AM GJPB PM2.5 24 Good 21 3 µg/m3
3:00 AM GREH PM10 24 Good 6 6 µg/m3
3:00 AM GREH PM2.5 24 Good 12 2 µg/m3
3:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM GRET O3 8 Good 40 43 PPB
3:00 AM HLD O3 8 Good 33 36 PPB
3:00 AM I25DEN CO 8 Good 1 0.1 PPM
3:00 AM I25DEN NO2 1 Good 11 12 PPB
3:00 AM I25DEN PM10 24 Good 12 13 µg/m3
3:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
3:00 AM I25GLO NO2 1 Good 5 5 PPB
3:00 AM I25GLO PM10 24 Good 24 26 µg/m3
3:00 AM I25GLO PM2.5 24 Good 27 4 µg/m3
3:00 AM LAST NO2 1 Good 4 4 PPB
3:00 AM LAST O3 8 Good 38 41 PPB
3:00 AM LMB PM10 24 Good 18 19 µg/m3
3:00 AM LMB PM2.5 24 Good 21 3 µg/m3
3:00 AM LNGM PM10 24 Good 31 34 µg/m3
3:00 AM LNGM PM2.5 24 Good 22 4 µg/m3
3:00 AM MAN O3 8 Good 43 46 PPB
3:00 AM NJH PM10 24 Good 19 20 µg/m3
3:00 AM NJH PM2.5 24 Good 22 4 µg/m3
3:00 AM NREL O3 8 Good 44 48 PPB
3:00 AM PAG PM10 24 Good 15 16 µg/m3
3:00 AM PAG PM2.5 24 Good 21 3 µg/m3
3:00 AM PAL O3 8 Good 45 49 PPB
3:00 AM PFS PM10 24 Good 14 15 µg/m3
3:00 AM PFS PM2.5 24 Good 19 3 µg/m3
3:00 AM PMS PM2.5 24 Good 26 4 µg/m3
3:00 AM PWES O3 8 Good 43 46 PPB
3:00 AM RFN NO2 1 Good 1 1 PPB
3:00 AM RFN O3 8 Good 44 48 PPB
3:00 AM RIFL PM2.5 24 Good 27 4 µg/m3
3:00 AM RIFLO3 O3 8 Good 20 22 PPB
3:00 AM SSMB PM10 24 Good 9 10 µg/m3
3:00 AM SSMB PM2.5 24 Good 18 3 µg/m3
3:00 AM TEL PM10 24 Good 19 20 µg/m3
3:00 AM TEL PM2.5 24 Good 23 4 µg/m3
3:00 AM TIM NO2 1 Good 5 5 PPB
3:00 AM TIM O3 8 Good 36 39 PPB
3:00 AM TIM PM10 24 Good 11 12 µg/m3
3:00 AM TIM PM2.5 24 Good 16 2 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 44 47 PPB
3:00 AM WBY PM10 24 Good 25 27 µg/m3
3:00 AM WBY PM2.5 24 Good 22 3 µg/m3
2:00 AM ACAD O3 8 Good 32 35 PPB
2:00 AM ACC PM10 24 Good 12 13 µg/m3
2:00 AM ACC PM2.5 24 Good 17 3 µg/m3
2:00 AM ADB PM10 24 Good 38 41 µg/m3
2:00 AM ADB PM2.5 24 Good 37 6 µg/m3
2:00 AM ALA PM10 24 Good 19 21 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 12 13 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 18 3 µg/m3
2:00 AM AURE O3 8 Good 43 46 PPB
2:00 AM BHWK O3 8 Good 45 49 PPB
2:00 AM BOU PM10 24 Good 12 13 µg/m3
2:00 AM BOU PM2.5 24 Good 18 3 µg/m3
2:00 AM BOUR O3 8 Good 41 44 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 47 51 PPB
2:00 AM CAMP PM10 24 Good 14 15 µg/m3
2:00 AM CAMP PM2.5 24 Good 24 4 µg/m3
2:00 AM CAN PM10 24 Good 27 29 µg/m3
2:00 AM CAN PM2.5 24 Good 23 4 µg/m3
2:00 AM CASA CO 8 Good 1 0.1 PPM
2:00 AM CASA NO2 1 Good 6 6 PPB
2:00 AM CASA O3 8 Good 46 50 PPB
2:00 AM CASA PM10 24 Good 19 21 µg/m3
2:00 AM CASA PM2.5 24 Good 22 3 µg/m3
2:00 AM CCOL CO 8 Good 1 0.1 PPM
2:00 AM CCOL PM10 24 Good 13 14 µg/m3
2:00 AM CCOL PM2.5 24 Good 22 4 µg/m3
2:00 AM CHAT O3 8 Good 48 52 PPB
2:00 AM CHAT PM10 24 Good 20 22 µg/m3
2:00 AM CHAT PM2.5 24 Good 20 3 µg/m3
2:00 AM CTZ O3 8 Good 42 45 PPB
2:00 AM EVG O3 8 Good 42 45 PPB
2:00 AM FOS NO2 1 Good 5 5 PPB
2:00 AM FOS O3 8 Good 42 45 PPB
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM FTC O3 8 Good 38 41 PPB
2:00 AM FTCF PM10 24 Good 8 9 µg/m3
2:00 AM FTCF PM2.5 24 Good 14 2 µg/m3
2:00 AM FTCW O3 8 Good 42 45 PPB
2:00 AM GJPB PM10 24 Good 10 11 µg/m3
2:00 AM GJPB PM2.5 24 Good 21 3 µg/m3
2:00 AM GREH PM10 24 Good 5 5 µg/m3
2:00 AM GREH PM2.5 24 Good 12 2 µg/m3
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM GRET O3 8 Good 44 47 PPB
2:00 AM HLD O3 8 Good 37 40 PPB
2:00 AM I25DEN CO 8 Good 1 0.1 PPM
2:00 AM I25DEN NO2 1 Good 7 7 PPB
2:00 AM I25DEN PM10 24 Good 12 13 µg/m3
2:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
2:00 AM I25GLO NO2 1 Good 7 7 PPB
2:00 AM I25GLO PM10 24 Good 24 26 µg/m3
2:00 AM I25GLO PM2.5 24 Good 28 5 µg/m3
2:00 AM LAST NO2 1 Good 4 4 PPB
2:00 AM LAST O3 8 Good 41 44 PPB
2:00 AM LMB PM10 24 Good 18 19 µg/m3
2:00 AM LMB PM2.5 24 Good 21 3 µg/m3
2:00 AM LNGM PM10 24 Good 31 33 µg/m3
2:00 AM LNGM PM2.5 24 Good 22 4 µg/m3
2:00 AM MAN O3 8 Good 44 48 PPB
2:00 AM NJH PM10 24 Good 19 20 µg/m3
2:00 AM NJH PM2.5 24 Good 22 4 µg/m3
2:00 AM NREL O3 8 Good 46 50 PPB
2:00 AM PAG PM10 24 Good 14 15 µg/m3
2:00 AM PAG PM2.5 24 Good 21 3 µg/m3
2:00 AM PAL O3 8 Good 47 51 PPB
2:00 AM PFS PM10 24 Good 14 15 µg/m3
2:00 AM PFS PM2.5 24 Good 19 3 µg/m3
2:00 AM PMS PM2.5 24 Good 26 4 µg/m3
2:00 AM PWES O3 8 Good 44 47 PPB
2:00 AM RFN O3 8 Good 45 49 PPB
2:00 AM RIFL PM2.5 24 Good 28 5 µg/m3
2:00 AM RIFLO3 O3 8 Good 22 24 PPB
2:00 AM SSMB PM10 24 Good 9 10 µg/m3
2:00 AM SSMB PM2.5 24 Good 18 3 µg/m3
2:00 AM TEL PM10 24 Good 19 20 µg/m3
2:00 AM TEL PM2.5 24 Good 23 4 µg/m3
2:00 AM TIM NO2 1 Good 4 4 PPB
2:00 AM TIM O3 8 Good 41 44 PPB
2:00 AM TIM PM10 24 Good 11 12 µg/m3
2:00 AM TIM PM2.5 24 Good 16 2 µg/m3
2:00 AM WBY NO2 1 Good 2 2 PPB
2:00 AM WBY NO2 1 Good 2 2 PPB
2:00 AM WBY O3 8 Good 45 49 PPB
2:00 AM WBY PM10 24 Good 25 27 µg/m3
2:00 AM WBY PM2.5 24 Good 22 3 µg/m3
1:00 AM ACAD O3 8 Good 34 37 PPB
1:00 AM ACC PM10 24 Good 12 13 µg/m3
1:00 AM ACC PM2.5 24 Good 18 3 µg/m3
1:00 AM ADB PM10 24 Good 39 42 µg/m3
1:00 AM ADB PM2.5 24 Good 38 6 µg/m3
1:00 AM ALA PM10 24 Good 19 21 µg/m3
1:00 AM ALA PM2.5 24 Good 22 4 µg/m3
1:00 AM ASPN O3 8 Good 44 48 PPB
1:00 AM ASPN2 PM10 24 Good 12 13 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 18 3 µg/m3
1:00 AM AURE O3 8 Good 45 49 PPB
1:00 AM BHWK O3 8 Good 48 52 PPB
1:00 AM BOU PM10 24 Good 13 14 µg/m3
1:00 AM BOU PM2.5 24 Good 18 3 µg/m3
1:00 AM BOUR O3 8 Good 44 47 PPB
1:00 AM CAMP NO2 1 Good 4 4 PPB
1:00 AM CAMP NO2 1 Good 4 4 PPB
1:00 AM CAMP O3 8 Good 49 53 PPB
1:00 AM CAMP PM10 24 Good 14 15 µg/m3
1:00 AM CAMP PM2.5 24 Good 24 4 µg/m3
1:00 AM CAN PM10 24 Good 27 29 µg/m3
1:00 AM CAN PM2.5 24 Good 22 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 49 53 PPB
1:00 AM CASA PM10 24 Good 19 21 µg/m3
1:00 AM CASA PM2.5 24 Good 22 3 µg/m3
1:00 AM CCOL CO 8 Good 1 0.1 PPM
1:00 AM CCOL PM10 24 Good 13 14 µg/m3
1:00 AM CCOL PM2.5 24 Good 22 4 µg/m3
1:00 AM CHAT O3 8 Moderate 51 55 PPB
1:00 AM CHAT PM10 24 Good 20 22 µg/m3
1:00 AM CHAT PM2.5 24 Good 20 3 µg/m3
1:00 AM CTZ O3 8 Good 44 48 PPB
1:00 AM EVG O3 8 Good 45 49 PPB
1:00 AM FOS NO2 1 Good 3 3 PPB
1:00 AM FOS O3 8 Good 45 49 PPB
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM FTC O3 8 Good 43 46 PPB
1:00 AM FTCF PM10 24 Good 8 9 µg/m3
1:00 AM FTCF PM2.5 24 Good 14 2 µg/m3
1:00 AM FTCW O3 8 Good 45 49 PPB
1:00 AM GJPB PM10 24 Good 10 11 µg/m3
1:00 AM GJPB PM2.5 24 Good 21 3 µg/m3
1:00 AM GREH PM10 24 Good 5 5 µg/m3
1:00 AM GREH PM2.5 24 Good 12 2 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 45 49 PPB
1:00 AM HLD O3 8 Good 40 43 PPB
1:00 AM I25DEN CO 8 Good 1 0.1 PPM
1:00 AM I25DEN NO2 1 Good 6 6 PPB
1:00 AM I25DEN PM10 24 Good 12 13 µg/m3
1:00 AM I25DEN PM2.5 24 Good 25 4 µg/m3
1:00 AM I25GLO NO2 1 Good 3 3 PPB
1:00 AM I25GLO PM10 24 Good 24 26 µg/m3
1:00 AM I25GLO PM2.5 24 Good 28 5 µg/m3
1:00 AM LAST NO2 1 Good 3 3 PPB
1:00 AM LAST O3 8 Good 44 47 PPB
1:00 AM LMB PM10 24 Good 18 19 µg/m3
1:00 AM LMB PM2.5 24 Good 21 3 µg/m3
1:00 AM LNGM PM10 24 Good 31 33 µg/m3
1:00 AM LNGM PM2.5 24 Good 22 4 µg/m3
1:00 AM MAN O3 8 Good 46 50 PPB
1:00 AM NJH PM10 24 Good 19 20 µg/m3
1:00 AM NJH PM2.5 24 Good 22 4 µg/m3
1:00 AM NREL O3 8 Good 48 52 PPB
1:00 AM PAG PM10 24 Good 14 15 µg/m3
1:00 AM PAG PM2.5 24 Good 21 3 µg/m3
1:00 AM PAL O3 8 Good 49 53 PPB
1:00 AM PFS PM10 24 Good 13 14 µg/m3
1:00 AM PFS PM2.5 24 Good 20 3 µg/m3
1:00 AM PMS PM2.5 24 Good 25 4 µg/m3
1:00 AM PWES O3 8 Good 45 49 PPB
1:00 AM RFN O3 8 Good 47 51 PPB
1:00 AM RIFL PM2.5 24 Good 27 4 µg/m3
1:00 AM RIFLO3 O3 8 Good 25 27 PPB
1:00 AM SSMB PM10 24 Good 9 10 µg/m3
1:00 AM SSMB PM2.5 24 Good 18 3 µg/m3
1:00 AM TEL PM10 24 Good 18 19 µg/m3
1:00 AM TEL PM2.5 24 Good 22 4 µg/m3
1:00 AM TIM NO2 1 Good 3 3 PPB
1:00 AM TIM O3 8 Good 44 47 PPB
1:00 AM TIM PM10 24 Good 11 12 µg/m3
1:00 AM TIM PM2.5 24 Good 16 2 µg/m3
1:00 AM WBY NO2 1 Good 3 3 PPB
1:00 AM WBY NO2 1 Good 3 3 PPB
1:00 AM WBY O3 8 Good 48 52 PPB
1:00 AM WBY PM10 24 Good 25 27 µg/m3
1:00 AM WBY PM2.5 24 Good 22 4 µg/m3

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