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AQI Calculations on 01/18/2018 1:00AM - 6:00AM

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.
2:00 AM CHAT PM10 24 Moderate 76 105 µg/m3
3:00 AM CHAT PM10 24 Moderate 75 103 µg/m3
4:00 AM CHAT PM10 24 Moderate 74 102 µg/m3
1:00 AM CHAT PM10 24 Moderate 74 102 µg/m3
5:00 AM CHAT PM10 24 Moderate 72 97 µg/m3
6:00 AM CHAT PM10 24 Moderate 70 93 µg/m3
6:00 AM GREH PM2.5 24 Moderate 67 20 µg/m3
5:00 AM GREH PM2.5 24 Moderate 67 20 µg/m3
4:00 AM GREH PM2.5 24 Moderate 66 19 µg/m3
3:00 AM GREH PM2.5 24 Moderate 66 19 µg/m3
2:00 AM GREH PM2.5 24 Moderate 65 19 µg/m3
1:00 AM GREH PM2.5 24 Moderate 64 19 µg/m3
2:00 AM ADM PM2.5 24 Moderate 62 17 µg/m3
1:00 AM ADM PM2.5 24 Moderate 62 17 µg/m3
3:00 AM ADM PM2.5 24 Moderate 61 17 µg/m3
4:00 AM ADM PM2.5 24 Moderate 60 16 µg/m3
1:00 AM I25GLO PM2.5 24 Moderate 60 17 µg/m3
6:00 AM ADM PM2.5 24 Moderate 59 16 µg/m3
5:00 AM ADM PM2.5 24 Moderate 59 16 µg/m3
2:00 AM I25GLO PM2.5 24 Moderate 59 16 µg/m3
3:00 AM I25GLO PM2.5 24 Moderate 58 15 µg/m3
4:00 AM I25GLO PM2.5 24 Moderate 57 15 µg/m3
5:00 AM I25GLO PM2.5 24 Moderate 56 15 µg/m3
1:00 AM CAMP PM2.5 24 Moderate 56 15 µg/m3
6:00 AM I25GLO PM2.5 24 Moderate 55 14 µg/m3
2:00 AM CAMP PM2.5 24 Moderate 55 14 µg/m3
2:00 AM ASPN2 PM10 24 Moderate 54 62 µg/m3
1:00 AM ASPN2 PM10 24 Moderate 54 62 µg/m3
3:00 AM ASPN2 PM10 24 Moderate 53 59 µg/m3
3:00 AM CAMP PM2.5 24 Moderate 53 13 µg/m3
4:00 AM ASPN2 PM10 24 Moderate 52 57 µg/m3
6:00 AM ASPN2 PM10 24 Moderate 51 56 µg/m3
5:00 AM ASPN2 PM10 24 Moderate 51 56 µg/m3
4:00 AM CAMP PM2.5 24 Moderate 51 12 µg/m3
1:00 AM SWAN PM2.5 24 Moderate 51 12 µg/m3
3:00 AM LNGM PM2.5 24 Good 50 12 µg/m3
2:00 AM DELT PM2.5 24 Good 50 12 µg/m3
2:00 AM I25GLO PM10 24 Good 50 54 µg/m3
2:00 AM LNGM PM2.5 24 Good 50 12 µg/m3
2:00 AM SWAN PM2.5 24 Good 50 12 µg/m3
1:00 AM DELT PM2.5 24 Good 50 12 µg/m3
1:00 AM I25DEN PM2.5 24 Good 50 12 µg/m3
1:00 AM I25GLO PM10 24 Good 50 54 µg/m3
1:00 AM LNGM PM2.5 24 Good 50 12 µg/m3
6:00 AM DELT PM2.5 24 Good 49 12 µg/m3
6:00 AM I25GLO PM10 24 Good 49 53 µg/m3
5:00 AM DELT PM2.5 24 Good 49 12 µg/m3
5:00 AM I25GLO PM10 24 Good 49 53 µg/m3
5:00 AM LNGM PM2.5 24 Good 49 12 µg/m3
4:00 AM DELT PM2.5 24 Good 49 12 µg/m3
4:00 AM I25GLO PM10 24 Good 49 53 µg/m3
3:00 AM DELT PM2.5 24 Good 49 12 µg/m3
3:00 AM I25GLO PM10 24 Good 49 53 µg/m3
6:00 AM LNGM PM2.5 24 Good 48 12 µg/m3
5:00 AM CAMP PM2.5 24 Good 48 12 µg/m3
4:00 AM LNGM PM2.5 24 Good 48 12 µg/m3
3:00 AM SWAN PM2.5 24 Good 48 12 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 48 12 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 48 12 µg/m3
6:00 AM ADM PM10 24 Good 47 51 µg/m3
6:00 AM ASPN2 PM2.5 24 Good 47 11 µg/m3
6:00 AM I25DEN PM2.5 24 Good 47 11 µg/m3
5:00 AM ADM PM10 24 Good 47 51 µg/m3
5:00 AM ASPN2 PM2.5 24 Good 47 11 µg/m3
4:00 AM ADM PM10 24 Good 47 51 µg/m3
3:00 AM ADM PM10 24 Good 47 51 µg/m3
3:00 AM ASPN2 PM2.5 24 Good 47 11 µg/m3
2:00 AM ADM PM10 24 Good 47 51 µg/m3
2:00 AM I25DEN PM2.5 24 Good 47 11 µg/m3
1:00 AM ADM PM10 24 Good 47 51 µg/m3
1:00 AM CASA PM2.5 24 Good 47 11 µg/m3
4:00 AM ASPN2 PM2.5 24 Good 46 11 µg/m3
4:00 AM SWAN PM2.5 24 Good 46 11 µg/m3
6:00 AM CAMP PM2.5 24 Good 45 11 µg/m3
3:00 AM I25DEN PM2.5 24 Good 45 11 µg/m3
2:00 AM CASA PM2.5 24 Good 45 11 µg/m3
5:00 AM I25DEN PM2.5 24 Good 44 11 µg/m3
4:00 AM I25DEN PM2.5 24 Good 44 11 µg/m3
5:00 AM SWAN PM2.5 24 Good 43 10 µg/m3
3:00 AM CASA PM2.5 24 Good 43 10 µg/m3
2:00 AM CHAT PM2.5 24 Good 43 10 µg/m3
1:00 AM CHAT PM2.5 24 Good 43 10 µg/m3
6:00 AM I25DEN NO2 1 Good 42 44 PPB
6:00 AM I25GLO NO2 1 Good 42 44 PPB
4:00 AM CASA PM2.5 24 Good 42 10 µg/m3
4:00 AM CHAT PM2.5 24 Good 42 10 µg/m3
3:00 AM CHAT PM2.5 24 Good 42 10 µg/m3
6:00 AM SWAN PM2.5 24 Good 40 10 µg/m3
5:00 AM CASA PM2.5 24 Good 40 10 µg/m3
5:00 AM CHAT PM2.5 24 Good 40 10 µg/m3
4:00 AM I25GLO NO2 1 Good 40 42 PPB
3:00 AM I25GLO NO2 1 Good 40 42 PPB
1:00 AM CAMP PM10 24 Good 40 43 µg/m3
6:00 AM CASA PM2.5 24 Good 39 9 µg/m3
6:00 AM GREH PM10 24 Good 39 42 µg/m3
6:00 AM NREL O3 8 Good 39 42 PPB
5:00 AM GREH PM10 24 Good 39 42 µg/m3
5:00 AM I25GLO NO2 1 Good 39 41 PPB
1:00 AM NJH PM2.5 24 Good 39 9 µg/m3
6:00 AM CASA NO2 1 Good 38 40 PPB
6:00 AM CHAT PM2.5 24 Good 38 9 µg/m3
4:00 AM GREH PM10 24 Good 38 41 µg/m3
3:00 AM GREH PM10 24 Good 38 41 µg/m3
2:00 AM CAMP PM10 24 Good 38 41 µg/m3
1:00 AM FTCF PM2.5 24 Good 38 9 µg/m3
6:00 AM RFN O3 8 Good 37 40 PPB
6:00 AM WBY NO2 1 Good 37 39 PPB
6:00 AM WBY NO2 1 Good 37 39 PPB
5:00 AM I25DEN NO2 1 Good 37 39 PPB
5:00 AM NREL O3 8 Good 37 40 PPB
5:00 AM SWAN NO2 1 Good 37 39 PPB
3:00 AM CAMP PM10 24 Good 37 40 µg/m3
3:00 AM NJH PM2.5 24 Good 37 9 µg/m3
2:00 AM GREH PM10 24 Good 37 40 µg/m3
2:00 AM NJH PM2.5 24 Good 37 9 µg/m3
1:00 AM SWAN NO2 1 Good 37 39 PPB
5:00 AM CASA NO2 1 Good 36 38 PPB
5:00 AM RFN O3 8 Good 36 39 PPB
4:00 AM CAMP PM10 24 Good 36 39 µg/m3
4:00 AM CASA NO2 1 Good 36 38 PPB
4:00 AM NJH PM2.5 24 Good 36 9 µg/m3
4:00 AM SWAN NO2 1 Good 36 38 PPB
3:00 AM CASA NO2 1 Good 36 38 PPB
3:00 AM SWAN NO2 1 Good 36 38 PPB
2:00 AM FTCF PM2.5 24 Good 36 9 µg/m3
1:00 AM GREH PM10 24 Good 36 39 µg/m3
6:00 AM ASP O3 8 Good 35 38 PPB
6:00 AM MAN O3 8 Good 35 38 PPB
6:00 AM SWAN NO2 1 Good 35 37 PPB
4:00 AM I25DEN NO2 1 Good 35 37 PPB
4:00 AM NREL O3 8 Good 35 38 PPB
4:00 AM RFN O3 8 Good 35 38 PPB
3:00 AM FTCF PM2.5 24 Good 35 8 µg/m3
3:00 AM I25DEN NO2 1 Good 35 37 PPB
2:00 AM WBY NO2 1 Good 35 37 PPB
2:00 AM WBY NO2 1 Good 35 37 PPB
1:00 AM I25GLO NO2 1 Good 35 37 PPB
1:00 AM WBY NO2 1 Good 35 37 PPB
1:00 AM WBY NO2 1 Good 35 37 PPB
6:00 AM NJH PM2.5 24 Good 34 8 µg/m3
5:00 AM ASP O3 8 Good 34 37 PPB
5:00 AM CAMP PM10 24 Good 34 37 µg/m3
5:00 AM NJH PM2.5 24 Good 34 8 µg/m3
5:00 AM WBY NO2 1 Good 34 36 PPB
5:00 AM WBY NO2 1 Good 34 36 PPB
4:00 AM ASP O3 8 Good 34 37 PPB
4:00 AM FTCF PM2.5 24 Good 34 8 µg/m3
4:00 AM WBY NO2 1 Good 34 36 PPB
4:00 AM WBY NO2 1 Good 34 36 PPB
3:00 AM WBY NO2 1 Good 34 36 PPB
3:00 AM WBY NO2 1 Good 34 36 PPB
2:00 AM I25DEN NO2 1 Good 34 36 PPB
2:00 AM SWAN NO2 1 Good 34 36 PPB
1:00 AM I25DEN NO2 1 Good 34 36 PPB
6:00 AM CAMP PM10 24 Good 33 36 µg/m3
6:00 AM HLD O3 8 Good 33 36 PPB
6:00 AM I25DEN PM10 24 Good 33 36 µg/m3
6:00 AM WCH O3 8 Good 33 36 PPB
5:00 AM FTCF PM2.5 24 Good 33 8 µg/m3
5:00 AM HLD O3 8 Good 33 36 PPB
5:00 AM MAN O3 8 Good 33 36 PPB
3:00 AM ASP O3 8 Good 33 36 PPB
3:00 AM NREL O3 8 Good 33 36 PPB
2:00 AM CASA NO2 1 Good 33 35 PPB
1:00 AM CASA NO2 1 Good 33 35 PPB
1:00 AM I25DEN PM10 24 Good 33 36 µg/m3
6:00 AM ASPN O3 8 Good 32 35 PPB
6:00 AM FTCF PM2.5 24 Good 32 8 µg/m3
5:00 AM I25DEN PM10 24 Good 32 35 µg/m3
4:00 AM HLD O3 8 Good 32 35 PPB
4:00 AM I25DEN PM10 24 Good 32 35 µg/m3
4:00 AM MAN O3 8 Good 32 35 PPB
3:00 AM I25DEN PM10 24 Good 32 35 µg/m3
3:00 AM MAN O3 8 Good 32 35 PPB
3:00 AM RFN O3 8 Good 32 35 PPB
2:00 AM I25DEN PM10 24 Good 32 35 µg/m3
1:00 AM RFN O3 8 Good 32 35 PPB
6:00 AM AURE O3 8 Good 31 34 PPB
6:00 AM GJPB PM2.5 24 Good 31 7 µg/m3
5:00 AM ASPN O3 8 Good 31 34 PPB
5:00 AM AURE O3 8 Good 31 33 PPB
5:00 AM GJPB PM2.5 24 Good 31 7 µg/m3
5:00 AM WCH O3 8 Good 31 34 PPB
4:00 AM ASPN O3 8 Good 31 33 PPB
3:00 AM CASA PM10 24 Good 31 33 µg/m3
3:00 AM HLD O3 8 Good 31 33 PPB
2:00 AM ASP O3 8 Good 31 34 PPB
2:00 AM CASA PM10 24 Good 31 33 µg/m3
2:00 AM I25GLO NO2 1 Good 31 33 PPB
2:00 AM MAN O3 8 Good 31 34 PPB
2:00 AM NREL O3 8 Good 31 34 PPB
2:00 AM RFN O3 8 Good 31 34 PPB
1:00 AM CASA PM10 24 Good 31 33 µg/m3
1:00 AM MAN O3 8 Good 31 34 PPB
6:00 AM CASA PM10 24 Good 30 32 µg/m3
5:00 AM CASA PM10 24 Good 30 32 µg/m3
4:00 AM CASA PM10 24 Good 30 32 µg/m3
4:00 AM GJPB PM2.5 24 Good 30 7 µg/m3
4:00 AM WCH O3 8 Good 30 32 PPB
3:00 AM GJPB PM2.5 24 Good 30 7 µg/m3
2:00 AM ELK O3 8 Good 30 32 PPB
2:00 AM GJPB PM2.5 24 Good 30 7 µg/m3
1:00 AM ELK O3 8 Good 30 32 PPB
1:00 AM NREL O3 8 Good 30 32 PPB
4:00 AM AURE O3 8 Good 29 31 PPB
4:00 AM ELK O3 8 Good 29 31 PPB
3:00 AM ASPN O3 8 Good 29 31 PPB
3:00 AM AURE O3 8 Good 29 31 PPB
3:00 AM ELK O3 8 Good 29 31 PPB
2:00 AM AURE O3 8 Good 29 31 PPB
2:00 AM HLD O3 8 Good 29 31 PPB
1:00 AM ASP O3 8 Good 29 31 PPB
1:00 AM AURE O3 8 Good 29 31 PPB
1:00 AM GJPB PM2.5 24 Good 29 7 µg/m3
5:00 AM ELK O3 8 Good 28 30 PPB
3:00 AM WCH O3 8 Good 28 30 PPB
2:00 AM ASPN O3 8 Good 28 30 PPB
1:00 AM ASPN O3 8 Good 28 30 PPB
6:00 AM ELK O3 8 Good 27 29 PPB
5:00 AM WBY PM10 24 Good 27 29 µg/m3
4:00 AM WBY PM10 24 Good 27 29 µg/m3
3:00 AM WBY PM10 24 Good 27 29 µg/m3
2:00 AM FTCW O3 8 Good 27 29 PPB
2:00 AM WBY PM10 24 Good 27 29 µg/m3
1:00 AM FTCW O3 8 Good 27 29 PPB
1:00 AM WBY PM10 24 Good 27 29 µg/m3
6:00 AM WBY PM10 24 Good 26 28 µg/m3
3:00 AM FTCW O3 8 Good 26 28 PPB
1:00 AM HLD O3 8 Good 26 28 PPB
4:00 AM FTCW O3 8 Good 25 27 PPB
2:00 AM WCH O3 8 Good 25 27 PPB
5:00 AM FTCW O3 8 Good 24 26 PPB
6:00 AM FTCW O3 8 Good 23 25 PPB
1:00 AM CHAT O3 8 Good 23 25 PPB
1:00 AM PAL O3 8 Good 23 25 PPB
6:00 AM RIFL PM2.5 24 Good 22 5 µg/m3
5:00 AM RIFL PM2.5 24 Good 21 5 µg/m3
4:00 AM RIFL PM2.5 24 Good 21 5 µg/m3
2:00 AM CHAT O3 8 Good 21 23 PPB
2:00 AM PAL O3 8 Good 21 23 PPB
2:00 AM RIFL PM2.5 24 Good 21 5 µg/m3
1:00 AM RIFL PM2.5 24 Good 21 5 µg/m3
1:00 AM WCH O3 8 Good 21 23 PPB
3:00 AM CHAT O3 8 Good 20 22 PPB
3:00 AM PAL O3 8 Good 20 22 PPB
3:00 AM RIFL PM2.5 24 Good 20 5 µg/m3
6:00 AM CAMP O3 8 Good 19 21 PPB
5:00 AM PAL O3 8 Good 19 20 PPB
4:00 AM PAL O3 8 Good 19 21 PPB
3:00 AM PDX O3 8 Good 19 20 PPB
2:00 AM PDX O3 8 Good 19 21 PPB
1:00 AM PDX O3 8 Good 19 21 PPB
6:00 AM CHAT O3 8 Good 18 19 PPB
6:00 AM PAL O3 8 Good 18 19 PPB
5:00 AM CAMP O3 8 Good 18 19 PPB
5:00 AM CHAT O3 8 Good 18 19 PPB
4:00 AM CHAT O3 8 Good 18 19 PPB
4:00 AM PDX O3 8 Good 18 19 PPB
1:00 AM FTCF PM10 24 Good 18 19 µg/m3
5:00 AM PDX O3 8 Good 17 18 PPB
4:00 AM FTCF PM10 24 Good 17 18 µg/m3
3:00 AM FTCF PM10 24 Good 17 18 µg/m3
2:00 AM FTCF PM10 24 Good 17 18 µg/m3
1:00 AM CCOL PM2.5 24 Good 17 4 µg/m3
6:00 AM ACAD O3 8 Good 16 17 PPB
6:00 AM CCOL PM2.5 24 Good 16 4 µg/m3
6:00 AM FTCF PM10 24 Good 16 17 µg/m3
6:00 AM PDX O3 8 Good 16 17 PPB
5:00 AM CCOL PM2.5 24 Good 16 4 µg/m3
5:00 AM FTCF PM10 24 Good 16 17 µg/m3
4:00 AM CAMP O3 8 Good 16 17 PPB
4:00 AM CCOL PM2.5 24 Good 16 4 µg/m3
3:00 AM CCOL PM2.5 24 Good 16 4 µg/m3
2:00 AM CCOL PM2.5 24 Good 16 4 µg/m3
1:00 AM CAMP NO2 1 Good 16 17 PPB
1:00 AM CAMP NO2 1 Good 16 17 PPB
6:00 AM BOU PM2.5 24 Good 15 4 µg/m3
6:00 AM BOUR O3 8 Good 15 16 PPB
5:00 AM BOU PM2.5 24 Good 15 4 µg/m3
4:00 AM BOU PM2.5 24 Good 15 4 µg/m3
4:00 AM CAMP NO2 1 Good 15 16 PPB
4:00 AM CAMP NO2 1 Good 15 16 PPB
3:00 AM BOU PM2.5 24 Good 15 4 µg/m3
5:00 AM ACAD O3 8 Good 14 15 PPB
5:00 AM BOUR O3 8 Good 14 15 PPB
4:00 AM BOUR O3 8 Good 14 15 PPB
3:00 AM CAMP NO2 1 Good 14 15 PPB
3:00 AM CAMP NO2 1 Good 14 15 PPB
3:00 AM CAMP O3 8 Good 14 15 PPB
2:00 AM BOU PM2.5 24 Good 14 3 µg/m3
1:00 AM BOU PM2.5 24 Good 14 3 µg/m3
1:00 AM BOUR O3 8 Good 14 15 PPB
6:00 AM CCOL PM10 24 Good 13 14 µg/m3
6:00 AM GJPB PM10 24 Good 13 14 µg/m3
5:00 AM CAMP NO2 1 Good 13 14 PPB
5:00 AM CAMP NO2 1 Good 13 14 PPB
5:00 AM CCOL PM10 24 Good 13 14 µg/m3
5:00 AM GJPB PM10 24 Good 13 14 µg/m3
4:00 AM CCOL PM10 24 Good 13 14 µg/m3
4:00 AM GJPB PM10 24 Good 13 14 µg/m3
3:00 AM BOUR O3 8 Good 13 14 PPB
3:00 AM CCOL PM10 24 Good 13 14 µg/m3
2:00 AM BOUR O3 8 Good 13 14 PPB
2:00 AM CCOL PM10 24 Good 13 14 µg/m3
1:00 AM CCOL PM10 24 Good 13 14 µg/m3
6:00 AM CTZ O3 8 Good 12 13 PPB
4:00 AM ACAD O3 8 Good 12 13 PPB
3:00 AM GJPB PM10 24 Good 12 13 µg/m3
2:00 AM CAMP NO2 1 Good 12 13 PPB
2:00 AM CAMP NO2 1 Good 12 13 PPB
2:00 AM CAMP O3 8 Good 12 13 PPB
2:00 AM GJPB PM10 24 Good 12 13 µg/m3
1:00 AM GJPB PM10 24 Good 12 13 µg/m3
1:00 AM H24 CO 8 Good 12 1.1 PPM
6:00 AM CAMP NO2 1 Good 11 12 PPB
6:00 AM CAMP NO2 1 Good 11 12 PPB
5:00 AM CTZ O3 8 Good 11 12 PPB
4:00 AM CTZ O3 8 Good 11 12 PPB
2:00 AM H24 CO 8 Good 11 1.0 PPM
1:00 AM CTZ O3 8 Good 11 12 PPB
3:00 AM CTZ O3 8 Good 10 11 PPB
3:00 AM H24 CO 8 Good 10 0.9 PPM
2:00 AM CTZ O3 8 Good 10 11 PPB
1:00 AM ACAD O3 8 Good 10 11 PPB
1:00 AM FTC CO 8 Good 10 0.9 PPM
6:00 AM I25DEN CO 8 Good 9 0.8 PPM
4:00 AM H24 CO 8 Good 9 0.8 PPM
3:00 AM ACAD O3 8 Good 9 10 PPB
3:00 AM FTC CO 8 Good 9 0.8 PPM
2:00 AM FTC CO 8 Good 9 0.8 PPM
1:00 AM CAMP O3 8 Good 9 10 PPB
5:00 AM H24 CO 8 Good 8 0.7 PPM
4:00 AM WBY CO 8 Good 8 0.7 PPM
3:00 AM WBY CO 8 Good 8 0.7 PPM
2:00 AM ACAD O3 8 Good 8 9 PPB
2:00 AM I25DEN CO 8 Good 8 0.7 PPM
2:00 AM WBY CO 8 Good 8 0.7 PPM
1:00 AM I25DEN CO 8 Good 8 0.7 PPM
1:00 AM WBY CO 8 Good 8 0.7 PPM
6:00 AM H24 CO 8 Good 7 0.6 PPM
5:00 AM FTC CO 8 Good 7 0.6 PPM
5:00 AM I25DEN CO 8 Good 7 0.6 PPM
5:00 AM WBY CO 8 Good 7 0.6 PPM
4:00 AM FTC CO 8 Good 7 0.6 PPM
4:00 AM I25DEN CO 8 Good 7 0.6 PPM
3:00 AM I25DEN CO 8 Good 7 0.6 PPM
2:00 AM CASA CO 8 Good 7 0.6 PPM
1:00 AM CAMP CO 8 Good 7 0.6 PPM
1:00 AM CASA CO 8 Good 7 0.6 PPM
6:00 AM FTC CO 8 Good 6 0.5 PPM
6:00 AM WBY CO 8 Good 6 0.5 PPM
3:00 AM CASA CO 8 Good 6 0.5 PPM
3:00 AM GJCT CO 8 Good 6 0.5 PPM
3:00 AM GRET O3 8 Good 6 6 PPB
2:00 AM CAMP CO 8 Good 6 0.5 PPM
2:00 AM GJCT CO 8 Good 6 0.5 PPM
2:00 AM GRET O3 8 Good 6 7 PPB
1:00 AM GJCT CO 8 Good 6 0.5 PPM
1:00 AM GRET O3 8 Good 6 7 PPB
6:00 AM GRET CO 8 Good 5 0.4 PPM
4:00 AM CASA CO 8 Good 5 0.4 PPM
4:00 AM GJCT CO 8 Good 5 0.4 PPM
4:00 AM GRET O3 8 Good 5 5 PPB
6:00 AM CASA CO 8 Good 3 0.3 PPM
6:00 AM FTC O3 8 Good 3 3 PPB
6:00 AM GJCT CO 8 Good 3 0.3 PPM
6:00 AM H24 SO2 1 Good 3 2 PPB
5:00 AM CASA CO 8 Good 3 0.3 PPM
5:00 AM FTC O3 8 Good 3 3 PPB
5:00 AM GJCT CO 8 Good 3 0.3 PPM
5:00 AM GRET CO 8 Good 3 0.3 PPM
5:00 AM GRET O3 8 Good 3 3 PPB
4:00 AM FTC O3 8 Good 3 3 PPB
4:00 AM GRET CO 8 Good 3 0.3 PPM
3:00 AM CAMP CO 8 Good 3 0.3 PPM
3:00 AM FTC O3 8 Good 3 3 PPB
3:00 AM GRET CO 8 Good 3 0.3 PPM
2:00 AM GRET CO 8 Good 3 0.3 PPM
1:00 AM GRET CO 8 Good 3 0.3 PPM
6:00 AM CAMP CO 8 Good 2 0.2 PPM
6:00 AM GRET O3 8 Good 2 2 PPB
5:00 AM CAMP CO 8 Good 2 0.2 PPM
4:00 AM CAMP CO 8 Good 2 0.2 PPM
2:00 AM FTC O3 8 Good 2 2 PPB
1:00 AM FTC O3 8 Good 2 2 PPB
6:00 AM CASA SO2 1 Good 1 1 PPB
6:00 AM WBY SO2 1 Good 1 1 PPB
6:00 AM WBY SO2 1 Good 1 1 PPB
5:00 AM CASA SO2 1 Good 1 1 PPB
5:00 AM H24 SO2 1 Good 1 1 PPB
5:00 AM WBY SO2 1 Good 1 1 PPB
5:00 AM WBY SO2 1 Good 1 1 PPB
4:00 AM CASA SO2 1 Good 1 1 PPB
4:00 AM H24 SO2 1 Good 1 1 PPB
4:00 AM WBY SO2 1 Good 1 1 PPB
4:00 AM WBY SO2 1 Good 1 1 PPB
3:00 AM CASA SO2 1 Good 1 1 PPB
3:00 AM H24 SO2 1 Good 1 1 PPB
3:00 AM WBY SO2 1 Good 1 1 PPB
3:00 AM WBY SO2 1 Good 1 1 PPB
2:00 AM CASA SO2 1 Good 1 1 PPB
2:00 AM H24 SO2 1 Good 1 1 PPB
2:00 AM WBY SO2 1 Good 1 1 PPB
2:00 AM WBY SO2 1 Good 1 1 PPB
1:00 AM WBY SO2 1 Good 1 1 PPB
1:00 AM WBY SO2 1 Good 1 1 PPB
6:00 AM CASA O3 8 Good 0 0 PPB
6:00 AM WBY O3 8 Good 0 0 PPB
5:00 AM CASA O3 8 Good 0 0 PPB
5:00 AM WBY O3 8 Good 0 0 PPB
4:00 AM CASA O3 8 Good 0 0 PPB
4:00 AM WBY O3 8 Good 0 0 PPB
3:00 AM CASA O3 8 Good 0 0 PPB
3:00 AM WBY O3 8 Good 0 0 PPB
2:00 AM CASA O3 8 Good 0 0 PPB
2:00 AM WBY O3 8 Good 0 0 PPB
1:00 AM CASA O3 8 Good 0 0 PPB
1:00 AM WBY O3 8 Good 0 0 PPB

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