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AQI Calculations on 09/25/2017 1:00AM - 10:00AM

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 PAL O3 8 Good 31 33 PPB
1:00 AM PDX O3 8 Good 31 33 PPB
2:00 AM PAL O3 8 Good 29 31 PPB
2:00 AM PDX O3 8 Good 29 31 PPB
1:00 AM ELK O3 8 Good 29 31 PPB
3:00 AM PAL O3 8 Good 27 29 PPB
3:00 AM PDX O3 8 Good 27 29 PPB
2:00 AM ELK O3 8 Good 27 29 PPB
1:00 AM CTZ O3 8 Good 27 29 PPB
4:00 AM PAL O3 8 Good 25 27 PPB
4:00 AM PDX O3 8 Good 25 27 PPB
3:00 AM ELK O3 8 Good 25 27 PPB
2:00 AM CTZ O3 8 Good 24 26 PPB
5:00 AM PAL O3 8 Good 23 25 PPB
5:00 AM PDX O3 8 Good 23 25 PPB
4:00 AM ELK O3 8 Good 23 25 PPB
3:00 AM CTZ O3 8 Good 23 25 PPB
6:00 AM PAL O3 8 Good 22 24 PPB
5:00 AM ELK O3 8 Good 22 24 PPB
1:00 AM RIFLO3 O3 8 Good 22 24 PPB
10:00 AM CTZ O3 8 Good 21 23 PPB
6:00 AM PDX O3 8 Good 21 23 PPB
4:00 AM CTZ O3 8 Good 21 23 PPB
7:00 AM PAL O3 8 Good 20 22 PPB
6:00 AM ELK O3 8 Good 20 22 PPB
5:00 AM CTZ O3 8 Good 20 22 PPB
10:00 AM PDX O3 8 Good 19 21 PPB
9:00 AM CTZ O3 8 Good 19 21 PPB
8:00 AM PDX O3 8 Good 19 21 PPB
7:00 AM PDX O3 8 Good 19 21 PPB
6:00 AM CTZ O3 8 Good 19 21 PPB
4:00 AM FTCW O3 8 Good 19 21 PPB
3:00 AM FTCW O3 8 Good 19 21 PPB
2:00 AM RIFLO3 O3 8 Good 19 21 PPB
10:00 AM PAL O3 8 Good 19 20 PPB
9:00 AM PAL O3 8 Good 19 20 PPB
9:00 AM PDX O3 8 Good 19 20 PPB
8:00 AM CTZ O3 8 Good 19 20 PPB
8:00 AM PAL O3 8 Good 19 20 PPB
7:00 AM CTZ O3 8 Good 19 20 PPB
7:00 AM ELK O3 8 Good 19 20 PPB
5:00 AM FTCW O3 8 Good 19 20 PPB
2:00 AM FTCW O3 8 Good 19 20 PPB
9:00 AM ASP O3 8 Good 18 19 PPB
3:00 AM RIFLO3 O3 8 Good 18 19 PPB
1:00 AM FTCW O3 8 Good 18 19 PPB
10:00 AM ASP O3 8 Good 17 18 PPB
10:00 AM ELK O3 8 Good 17 18 PPB
9:00 AM ELK O3 8 Good 17 18 PPB
8:00 AM ASP O3 8 Good 17 18 PPB
8:00 AM ELK O3 8 Good 17 18 PPB
6:00 AM FTCW O3 8 Good 17 18 PPB
10:00 AM AURE O3 8 Good 16 17 PPB
9:00 AM AURE O3 8 Good 16 17 PPB
9:00 AM NREL O3 8 Good 16 17 PPB
8:00 AM CHAT O3 8 Good 16 17 PPB
8:00 AM NREL O3 8 Good 16 17 PPB
7:00 AM ASP O3 8 Good 16 17 PPB
7:00 AM CHAT O3 8 Good 16 17 PPB
7:00 AM NREL O3 8 Good 16 17 PPB
7:00 AM WCH O3 8 Good 16 17 PPB
6:00 AM ASP O3 8 Good 16 17 PPB
6:00 AM NREL O3 8 Good 16 17 PPB
5:00 AM ASP O3 8 Good 16 17 PPB
4:00 AM RIFLO3 O3 8 Good 16 17 PPB
3:00 AM GRET O3 8 Good 16 17 PPB
1:00 AM ACAD O3 8 Good 16 17 PPB
1:00 AM MAN O3 8 Good 16 17 PPB
10:00 AM CHAT O3 8 Good 15 16 PPB
10:00 AM NREL O3 8 Good 15 16 PPB
10:00 AM WCH O3 8 Good 15 16 PPB
9:00 AM CHAT O3 8 Good 15 16 PPB
9:00 AM WCH O3 8 Good 15 16 PPB
8:00 AM AURE O3 8 Good 15 16 PPB
8:00 AM WCH O3 8 Good 15 16 PPB
7:00 AM AURE O3 8 Good 15 16 PPB
7:00 AM FTCW O3 8 Good 15 16 PPB
6:00 AM WCH O3 8 Good 15 16 PPB
4:00 AM ASP O3 8 Good 15 16 PPB
4:00 AM GRET O3 8 Good 15 16 PPB
2:00 AM FTC O3 8 Good 15 16 PPB
2:00 AM GRET O3 8 Good 15 16 PPB
2:00 AM MAN O3 8 Good 15 16 PPB
1:00 AM FTC O3 8 Good 15 16 PPB
9:00 AM RFN O3 8 Good 14 15 PPB
8:00 AM FTCW O3 8 Good 14 15 PPB
8:00 AM RFN O3 8 Good 14 15 PPB
7:00 AM RFN O3 8 Good 14 15 PPB
6:00 AM AURE O3 8 Good 14 15 PPB
6:00 AM CHAT O3 8 Good 14 15 PPB
6:00 AM GRET O3 8 Good 14 15 PPB
6:00 AM MAN O3 8 Good 14 15 PPB
6:00 AM RFN O3 8 Good 14 15 PPB
5:00 AM GRET O3 8 Good 14 15 PPB
5:00 AM MAN O3 8 Good 14 15 PPB
5:00 AM NREL O3 8 Good 14 15 PPB
5:00 AM RFN O3 8 Good 14 15 PPB
5:00 AM RIFLO3 O3 8 Good 14 15 PPB
4:00 AM FTC O3 8 Good 14 15 PPB
4:00 AM MAN O3 8 Good 14 15 PPB
3:00 AM ASP O3 8 Good 14 15 PPB
3:00 AM FTC O3 8 Good 14 15 PPB
3:00 AM MAN O3 8 Good 14 15 PPB
2:00 AM ACAD O3 8 Good 14 15 PPB
1:00 AM GRET O3 8 Good 14 15 PPB
10:00 AM ACAD O3 8 Good 13 14 PPB
10:00 AM MAN O3 8 Good 13 14 PPB
10:00 AM RFN O3 8 Good 13 14 PPB
8:00 AM MAN O3 8 Good 13 14 PPB
7:00 AM MAN O3 8 Good 13 14 PPB
6:00 AM WBY O3 8 Good 13 14 PPB
5:00 AM AURE O3 8 Good 13 14 PPB
5:00 AM CHAT O3 8 Good 13 14 PPB
5:00 AM FTC O3 8 Good 13 14 PPB
5:00 AM WBY O3 8 Good 13 14 PPB
5:00 AM WCH O3 8 Good 13 14 PPB
4:00 AM RFN O3 8 Good 13 14 PPB
4:00 AM WCH O3 8 Good 13 14 PPB
2:00 AM ASP O3 8 Good 13 14 PPB
2:00 AM RFN O3 8 Good 13 14 PPB
1:00 AM RFN O3 8 Good 13 14 PPB
10:00 AM FTCW O3 8 Good 12 13 PPB
10:00 AM HLD O3 8 Good 12 13 PPB
9:00 AM ACAD O3 8 Good 12 13 PPB
9:00 AM FTCW O3 8 Good 12 13 PPB
9:00 AM MAN O3 8 Good 12 13 PPB
8:00 AM HLD O3 8 Good 12 13 PPB
8:00 AM WBY O3 8 Good 12 13 PPB
7:00 AM GRET O3 8 Good 12 13 PPB
7:00 AM HLD O3 8 Good 12 13 PPB
7:00 AM WBY O3 8 Good 12 13 PPB
4:00 AM AURE O3 8 Good 12 13 PPB
4:00 AM CHAT O3 8 Good 12 13 PPB
4:00 AM NREL O3 8 Good 12 13 PPB
3:00 AM ACAD O3 8 Good 12 13 PPB
3:00 AM AURE O3 8 Good 12 13 PPB
3:00 AM CHAT O3 8 Good 12 13 PPB
3:00 AM NREL O3 8 Good 12 13 PPB
3:00 AM RFN O3 8 Good 12 13 PPB
3:00 AM WCH O3 8 Good 12 13 PPB
2:00 AM NREL O3 8 Good 12 13 PPB
1:00 AM ASP O3 8 Good 12 13 PPB
1:00 AM NREL O3 8 Good 12 13 PPB
1:00 AM WCH O3 8 Good 12 13 PPB
10:00 AM WBY O3 8 Good 11 12 PPB
9:00 AM HLD O3 8 Good 11 12 PPB
9:00 AM WBY O3 8 Good 11 12 PPB
8:00 AM ACAD O3 8 Good 11 12 PPB
8:00 AM CASA O3 8 Good 11 12 PPB
7:00 AM CASA O3 8 Good 11 12 PPB
6:00 AM CASA O3 8 Good 11 12 PPB
6:00 AM FTC O3 8 Good 11 12 PPB
6:00 AM HLD O3 8 Good 11 12 PPB
6:00 AM RIFLO3 O3 8 Good 11 12 PPB
5:00 AM CASA O3 8 Good 11 12 PPB
5:00 AM HLD O3 8 Good 11 12 PPB
4:00 AM ACAD O3 8 Good 11 12 PPB
4:00 AM WBY O3 8 Good 11 12 PPB
2:00 AM AURE O3 8 Good 11 12 PPB
2:00 AM BOUR O3 8 Good 11 12 PPB
2:00 AM CHAT O3 8 Good 11 12 PPB
2:00 AM WCH O3 8 Good 11 12 PPB
1:00 AM BOUR O3 8 Good 11 12 PPB
1:00 AM CHAT O3 8 Good 11 12 PPB
10:00 AM CASA O3 8 Good 10 11 PPB
9:00 AM CASA O3 8 Good 10 11 PPB
8:00 AM GRET O3 8 Good 10 11 PPB
7:00 AM ACAD O3 8 Good 10 11 PPB
7:00 AM BOUR O3 8 Good 10 11 PPB
6:00 AM ACAD O3 8 Good 10 11 PPB
6:00 AM BOUR O3 8 Good 10 11 PPB
5:00 AM ACAD O3 8 Good 10 11 PPB
5:00 AM BOUR O3 8 Good 10 11 PPB
4:00 AM BOUR O3 8 Good 10 11 PPB
4:00 AM HLD O3 8 Good 10 11 PPB
3:00 AM BOUR O3 8 Good 10 11 PPB
3:00 AM WBY O3 8 Good 10 11 PPB
1:00 AM AURE O3 8 Good 10 11 PPB
10:00 AM BOUR O3 8 Good 9 10 PPB
9:00 AM BOUR O3 8 Good 9 10 PPB
8:00 AM BOUR O3 8 Good 9 10 PPB
4:00 AM CASA O3 8 Good 9 10 PPB
3:00 AM HLD O3 8 Good 9 10 PPB
2:00 AM WBY O3 8 Good 9 10 PPB
1:00 AM WBY O3 8 Good 9 10 PPB
10:00 AM RIFLO3 O3 8 Good 8 9 PPB
9:00 AM GRET O3 8 Good 8 9 PPB
7:00 AM FTC O3 8 Good 8 9 PPB
7:00 AM RIFLO3 O3 8 Good 8 9 PPB
6:00 AM CAMP O3 8 Good 8 9 PPB
3:00 AM CASA O3 8 Good 8 9 PPB
2:00 AM HLD O3 8 Good 8 9 PPB
1:00 AM HLD O3 8 Good 8 9 PPB
10:00 AM CAMP O3 8 Good 7 8 PPB
10:00 AM GRET O3 8 Good 7 8 PPB
9:00 AM CAMP O3 8 Good 7 8 PPB
9:00 AM RIFLO3 O3 8 Good 7 8 PPB
8:00 AM CAMP O3 8 Good 7 8 PPB
8:00 AM RIFLO3 O3 8 Good 7 8 PPB
7:00 AM CAMP O3 8 Good 7 8 PPB
5:00 AM CAMP O3 8 Good 7 8 PPB
2:00 AM CASA O3 8 Good 7 8 PPB
1:00 AM CASA O3 8 Good 7 8 PPB
8:00 AM FTC O3 8 Good 6 7 PPB
4:00 AM CAMP O3 8 Good 6 7 PPB
3:00 AM CAMP O3 8 Good 6 7 PPB
10:00 AM FTC O3 8 Good 6 6 PPB
9:00 AM FTC O3 8 Good 6 6 PPB
2:00 AM CAMP O3 8 Good 5 5 PPB
1:00 AM CAMP O3 8 Good 5 5 PPB
1:00 AM ASPN O3 8 Good 33 36 PPB
5:00 AM ASPN O3 8 Good 31 34 PPB
2:00 AM ASPN O3 8 Good 31 34 PPB
6:00 AM ASPN O3 8 Good 31 33 PPB
4:00 AM ASPN O3 8 Good 31 33 PPB
3:00 AM ASPN O3 8 Good 31 33 PPB
7:00 AM ASPN O3 8 Good 30 32 PPB
10:00 AM ASPN O3 8 Good 29 31 PPB
9:00 AM ASPN O3 8 Good 29 31 PPB
8:00 AM ASPN O3 8 Good 29 31 PPB
1:00 AM DELT PM2.5 24 Good 35 8 µg/m3
2:00 AM DELT PM2.5 24 Good 33 8 µg/m3
10:00 AM DELT PM2.5 24 Good 32 8 µg/m3
8:00 AM DELT PM2.5 24 Good 32 8 µg/m3
4:00 AM DELT PM2.5 24 Good 32 8 µg/m3
5:00 AM DELT PM2.5 24 Good 32 8 µg/m3
3:00 AM DELT PM2.5 24 Good 32 8 µg/m3
9:00 AM DELT PM2.5 24 Good 32 8 µg/m3
7:00 AM DELT PM2.5 24 Good 32 8 µg/m3
6:00 AM DELT PM2.5 24 Good 32 8 µg/m3
10:00 AM CHAT PM10 24 Good 6 6 µg/m3
10:00 AM I25DEN PM10 24 Good 6 6 µg/m3
10:00 AM ASPN2 PM10 24 Good 5 5 µg/m3
10:00 AM GJPB PM10 24 Good 5 5 µg/m3
10:00 AM I25GLO PM10 24 Good 5 5 µg/m3
9:00 AM CHAT PM10 24 Good 5 5 µg/m3
9:00 AM GJPB PM10 24 Good 5 5 µg/m3
9:00 AM I25DEN PM10 24 Good 5 5 µg/m3
9:00 AM WBY PM10 24 Good 5 5 µg/m3
8:00 AM CHAT PM10 24 Good 5 5 µg/m3
8:00 AM GJPB PM10 24 Good 5 5 µg/m3
8:00 AM I25DEN PM10 24 Good 5 5 µg/m3
7:00 AM CHAT PM10 24 Good 5 5 µg/m3
7:00 AM I25DEN PM10 24 Good 5 5 µg/m3
6:00 AM I25DEN PM10 24 Good 5 5 µg/m3
5:00 AM I25DEN PM10 24 Good 5 5 µg/m3
5:00 AM WBY PM10 24 Good 5 5 µg/m3
4:00 AM WBY PM10 24 Good 5 5 µg/m3
3:00 AM WBY PM10 24 Good 5 5 µg/m3
2:00 AM WBY PM10 24 Good 5 5 µg/m3
1:00 AM WBY PM10 24 Good 5 5 µg/m3
10:00 AM I25DEN PM2.5 24 Good 18 4 µg/m3
9:00 AM I25DEN PM2.5 24 Good 17 4 µg/m3
10:00 AM WBY PM10 24 Good 4 4 µg/m3
9:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
9:00 AM I25GLO PM10 24 Good 4 4 µg/m3
8:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
8:00 AM I25GLO PM10 24 Good 4 4 µg/m3
8:00 AM WBY PM10 24 Good 4 4 µg/m3
7:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
7:00 AM GJPB PM10 24 Good 4 4 µg/m3
7:00 AM I25GLO PM10 24 Good 4 4 µg/m3
7:00 AM WBY PM10 24 Good 4 4 µg/m3
6:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
6:00 AM CHAT PM10 24 Good 4 4 µg/m3
6:00 AM GJPB PM10 24 Good 4 4 µg/m3
6:00 AM I25GLO PM10 24 Good 4 4 µg/m3
6:00 AM WBY PM10 24 Good 4 4 µg/m3
5:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
5:00 AM CHAT PM10 24 Good 4 4 µg/m3
5:00 AM GJPB PM10 24 Good 4 4 µg/m3
5:00 AM I25GLO PM10 24 Good 4 4 µg/m3
4:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
4:00 AM CHAT PM10 24 Good 4 4 µg/m3
4:00 AM GJPB PM10 24 Good 4 4 µg/m3
4:00 AM I25DEN PM10 24 Good 4 4 µg/m3
4:00 AM I25GLO PM10 24 Good 4 4 µg/m3
3:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
3:00 AM CHAT PM10 24 Good 4 4 µg/m3
3:00 AM I25DEN PM10 24 Good 4 4 µg/m3
3:00 AM I25GLO PM10 24 Good 4 4 µg/m3
2:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
2:00 AM CHAT PM10 24 Good 4 4 µg/m3
2:00 AM I25DEN PM10 24 Good 4 4 µg/m3
2:00 AM I25GLO PM10 24 Good 4 4 µg/m3
1:00 AM ASPN2 PM10 24 Good 4 4 µg/m3
1:00 AM CHAT PM10 24 Good 4 4 µg/m3
1:00 AM I25DEN PM10 24 Good 4 4 µg/m3
1:00 AM I25GLO PM10 24 Good 4 4 µg/m3
10:00 AM I25GLO PM2.5 24 Good 16 4 µg/m3
8:00 AM I25DEN PM2.5 24 Good 16 4 µg/m3
7:00 AM I25DEN PM2.5 24 Good 16 4 µg/m3
6:00 AM I25DEN PM2.5 24 Good 16 4 µg/m3
5:00 AM I25DEN PM2.5 24 Good 16 4 µg/m3
10:00 AM CHAT PM2.5 24 Good 15 4 µg/m3
9:00 AM I25GLO PM2.5 24 Good 15 4 µg/m3
6:00 AM I25GLO PM2.5 24 Good 15 4 µg/m3
5:00 AM I25GLO PM2.5 24 Good 15 4 µg/m3
1:00 AM LNGM PM2.5 24 Good 15 4 µg/m3
8:00 AM I25GLO PM2.5 24 Good 15 4 µg/m3
7:00 AM I25GLO PM2.5 24 Good 15 4 µg/m3
4:00 AM I25DEN PM2.5 24 Good 15 4 µg/m3
4:00 AM I25GLO PM2.5 24 Good 15 4 µg/m3
3:00 AM I25DEN PM2.5 24 Good 15 4 µg/m3
3:00 AM LNGM PM2.5 24 Good 15 4 µg/m3
2:00 AM LNGM PM2.5 24 Good 15 4 µg/m3
10:00 AM CAMP PM2.5 24 Good 15 4 µg/m3
4:00 AM LNGM PM2.5 24 Good 15 4 µg/m3
3:00 AM I25GLO PM2.5 24 Good 15 4 µg/m3
2:00 AM I25DEN PM2.5 24 Good 15 4 µg/m3
1:00 AM I25DEN PM2.5 24 Good 15 4 µg/m3
9:00 AM CHAT PM2.5 24 Good 14 3 µg/m3
5:00 AM LNGM PM2.5 24 Good 14 3 µg/m3
2:00 AM I25GLO PM2.5 24 Good 14 3 µg/m3
1:00 AM I25GLO PM2.5 24 Good 14 3 µg/m3
7:00 AM LNGM PM2.5 24 Good 14 3 µg/m3
6:00 AM LNGM PM2.5 24 Good 14 3 µg/m3
2:00 AM CAMP PM2.5 24 Good 14 3 µg/m3
1:00 AM CAMP PM2.5 24 Good 14 3 µg/m3
9:00 AM CAMP PM2.5 24 Good 13 3 µg/m3
9:00 AM LNGM PM2.5 24 Good 13 3 µg/m3
8:00 AM CHAT PM2.5 24 Good 13 3 µg/m3
8:00 AM LNGM PM2.5 24 Good 13 3 µg/m3
7:00 AM CHAT PM2.5 24 Good 13 3 µg/m3
4:00 AM CAMP PM2.5 24 Good 13 3 µg/m3
3:00 AM CAMP PM2.5 24 Good 13 3 µg/m3
10:00 AM LNGM PM2.5 24 Good 13 3 µg/m3
8:00 AM CAMP PM2.5 24 Good 13 3 µg/m3
6:00 AM CHAT PM2.5 24 Good 13 3 µg/m3
5:00 AM CAMP PM2.5 24 Good 13 3 µg/m3
5:00 AM CHAT PM2.5 24 Good 13 3 µg/m3
4:00 AM CHAT PM2.5 24 Good 13 3 µg/m3
3:00 AM GREH PM2.5 24 Good 13 3 µg/m3
2:00 AM GREH PM2.5 24 Good 13 3 µg/m3
1:00 AM CASA PM2.5 24 Good 13 3 µg/m3
1:00 AM GREH PM2.5 24 Good 13 3 µg/m3
10:00 AM CAMP PM10 24 Good 3 3 µg/m3
10:00 AM CASA PM10 24 Good 3 3 µg/m3
9:00 AM CAMP PM10 24 Good 3 3 µg/m3
9:00 AM CASA PM10 24 Good 3 3 µg/m3
8:00 AM CAMP PM10 24 Good 3 3 µg/m3
8:00 AM CASA PM10 24 Good 3 3 µg/m3
7:00 AM CAMP PM2.5 24 Good 12 3 µg/m3
7:00 AM CASA PM10 24 Good 3 3 µg/m3
6:00 AM CAMP PM2.5 24 Good 12 3 µg/m3
6:00 AM CASA PM10 24 Good 3 3 µg/m3
6:00 AM GREH PM10 24 Good 3 3 µg/m3
5:00 AM CAMP PM10 24 Good 3 3 µg/m3
5:00 AM CASA PM10 24 Good 3 3 µg/m3
5:00 AM GREH PM10 24 Good 3 3 µg/m3
4:00 AM CAMP PM10 24 Good 3 3 µg/m3
4:00 AM CASA PM10 24 Good 3 3 µg/m3
4:00 AM GREH PM10 24 Good 3 3 µg/m3
4:00 AM GREH PM2.5 24 Good 12 3 µg/m3
3:00 AM CAMP PM10 24 Good 3 3 µg/m3
3:00 AM CASA PM10 24 Good 3 3 µg/m3
3:00 AM CHAT PM2.5 24 Good 12 3 µg/m3
3:00 AM GJPB PM10 24 Good 3 3 µg/m3
3:00 AM GREH PM10 24 Good 3 3 µg/m3
2:00 AM CAMP PM10 24 Good 3 3 µg/m3
2:00 AM CASA PM10 24 Good 3 3 µg/m3
2:00 AM CASA PM2.5 24 Good 12 3 µg/m3
2:00 AM GJPB PM10 24 Good 3 3 µg/m3
2:00 AM GREH PM10 24 Good 3 3 µg/m3
1:00 AM CAMP PM10 24 Good 3 3 µg/m3
1:00 AM CASA PM10 24 Good 3 3 µg/m3
1:00 AM CHAT PM2.5 24 Good 12 3 µg/m3
1:00 AM GJPB PM10 24 Good 3 3 µg/m3
1:00 AM GREH PM10 24 Good 3 3 µg/m3
3:00 AM CASA PM2.5 24 Good 12 3 µg/m3
2:00 AM CHAT PM2.5 24 Good 12 3 µg/m3
10:00 AM ASPN2 PM2.5 24 Good 12 3 µg/m3
9:00 AM ASPN2 PM2.5 24 Good 12 3 µg/m3
9:00 AM GJPB PM2.5 24 Good 12 3 µg/m3
8:00 AM ASPN2 PM2.5 24 Good 12 3 µg/m3
8:00 AM GJPB PM2.5 24 Good 12 3 µg/m3
7:00 AM GJPB PM2.5 24 Good 12 3 µg/m3
6:00 AM GJPB PM2.5 24 Good 12 3 µg/m3
5:00 AM CASA PM2.5 24 Good 12 3 µg/m3
5:00 AM GREH PM2.5 24 Good 12 3 µg/m3
4:00 AM CASA PM2.5 24 Good 12 3 µg/m3
10:00 AM ADM PM2.5 24 Good 11 3 µg/m3
10:00 AM CASA PM2.5 24 Good 11 3 µg/m3
10:00 AM GJPB PM2.5 24 Good 11 3 µg/m3
9:00 AM CASA PM2.5 24 Good 11 3 µg/m3
7:00 AM ASPN2 PM2.5 24 Good 11 3 µg/m3
6:00 AM ASPN2 PM2.5 24 Good 11 3 µg/m3
6:00 AM CASA PM2.5 24 Good 11 3 µg/m3
5:00 AM ASPN2 PM2.5 24 Good 11 3 µg/m3
4:00 AM ASPN2 PM2.5 24 Good 11 3 µg/m3
9:00 AM ADM PM2.5 24 Good 11 3 µg/m3
8:00 AM ADM PM2.5 24 Good 11 3 µg/m3
8:00 AM CASA PM2.5 24 Good 11 3 µg/m3
7:00 AM CASA PM2.5 24 Good 11 3 µg/m3
6:00 AM GREH PM2.5 24 Good 11 3 µg/m3
5:00 AM GJPB PM2.5 24 Good 11 3 µg/m3
3:00 AM ASPN2 PM2.5 24 Good 11 3 µg/m3
2:00 AM ASPN2 PM2.5 24 Good 11 3 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 11 3 µg/m3
7:00 AM ADM PM2.5 24 Good 10 3 µg/m3
6:00 AM ADM PM2.5 24 Good 10 3 µg/m3
5:00 AM ADM PM2.5 24 Good 10 3 µg/m3
4:00 AM ADM PM2.5 24 Good 10 3 µg/m3
4:00 AM GJPB PM2.5 24 Good 10 3 µg/m3
3:00 AM ADM PM2.5 24 Good 10 3 µg/m3
2:00 AM ADM PM2.5 24 Good 10 3 µg/m3
1:00 AM ADM PM2.5 24 Good 10 3 µg/m3
7:00 AM GREH PM2.5 24 Good 10 2 µg/m3
3:00 AM GJPB PM2.5 24 Good 10 2 µg/m3
10:00 AM GREH PM2.5 24 Good 10 2 µg/m3
9:00 AM GREH PM2.5 24 Good 10 2 µg/m3
8:00 AM GREH PM2.5 24 Good 10 2 µg/m3
2:00 AM GJPB PM2.5 24 Good 10 2 µg/m3
1:00 AM GJPB PM2.5 24 Good 9 2 µg/m3
10:00 AM CCOL PM2.5 24 Good 9 2 µg/m3
9:00 AM CCOL PM2.5 24 Good 9 2 µg/m3
10:00 AM ADM PM10 24 Good 2 2 µg/m3
10:00 AM GREH PM10 24 Good 2 2 µg/m3
10:00 AM NJH PM2.5 24 Good 8 2 µg/m3
9:00 AM ADM PM10 24 Good 2 2 µg/m3
9:00 AM GREH PM10 24 Good 2 2 µg/m3
9:00 AM NJH PM2.5 24 Good 8 2 µg/m3
8:00 AM ADM PM10 24 Good 2 2 µg/m3
8:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
8:00 AM GREH PM10 24 Good 2 2 µg/m3
7:00 AM ADM PM10 24 Good 2 2 µg/m3
7:00 AM BOU PM2.5 24 Good 8 2 µg/m3
7:00 AM CAMP PM10 24 Good 2 2 µg/m3
7:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
7:00 AM GREH PM10 24 Good 2 2 µg/m3
6:00 AM ADM PM10 24 Good 2 2 µg/m3
6:00 AM CAMP PM10 24 Good 2 2 µg/m3
6:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
5:00 AM ADM PM10 24 Good 2 2 µg/m3
5:00 AM CCOL PM10 24 Good 2 2 µg/m3
5:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
4:00 AM ADM PM10 24 Good 2 2 µg/m3
4:00 AM BOU PM2.5 24 Good 8 2 µg/m3
4:00 AM CCOL PM10 24 Good 2 2 µg/m3
3:00 AM ADM PM10 24 Good 2 2 µg/m3
3:00 AM CCOL PM10 24 Good 2 2 µg/m3
2:00 AM ADM PM10 24 Good 2 2 µg/m3
2:00 AM CCOL PM10 24 Good 2 2 µg/m3
1:00 AM ADM PM10 24 Good 2 2 µg/m3
10:00 AM BOU PM2.5 24 Good 8 2 µg/m3
8:00 AM BOU PM2.5 24 Good 8 2 µg/m3
7:00 AM NJH PM2.5 24 Good 8 2 µg/m3
6:00 AM BOU PM2.5 24 Good 8 2 µg/m3
6:00 AM NJH PM2.5 24 Good 8 2 µg/m3
5:00 AM BOU PM2.5 24 Good 8 2 µg/m3
5:00 AM NJH PM2.5 24 Good 8 2 µg/m3
4:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
4:00 AM NJH PM2.5 24 Good 8 2 µg/m3
3:00 AM BOU PM2.5 24 Good 8 2 µg/m3
3:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
2:00 AM BOU PM2.5 24 Good 8 2 µg/m3
2:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
1:00 AM BOU PM2.5 24 Good 8 2 µg/m3
1:00 AM NJH PM2.5 24 Good 8 2 µg/m3
9:00 AM BOU PM2.5 24 Good 8 2 µg/m3
8:00 AM NJH PM2.5 24 Good 8 2 µg/m3
3:00 AM NJH PM2.5 24 Good 8 2 µg/m3
2:00 AM NJH PM2.5 24 Good 8 2 µg/m3
1:00 AM CCOL PM2.5 24 Good 8 2 µg/m3
1:00 AM CCOL PM10 24 Good 1 1 µg/m3
10:00 AM I25DEN CO 8 Good 5 0.4 PPM
9:00 AM I25DEN CO 8 Good 3 0.3 PPM
8:00 AM I25DEN CO 8 Good 3 0.3 PPM
10:00 AM CAMP CO 8 Good 2 0.2 PPM
10:00 AM GJCT CO 8 Good 2 0.2 PPM
9:00 AM CAMP CO 8 Good 2 0.2 PPM
9:00 AM GJCT CO 8 Good 2 0.2 PPM
8:00 AM CAMP CO 8 Good 2 0.2 PPM
8:00 AM GJCT CO 8 Good 2 0.2 PPM
7:00 AM CAMP CO 8 Good 2 0.2 PPM
7:00 AM GJCT CO 8 Good 2 0.2 PPM
7:00 AM I25DEN CO 8 Good 2 0.2 PPM
6:00 AM GJCT CO 8 Good 2 0.2 PPM
6:00 AM I25DEN CO 8 Good 2 0.2 PPM
5:00 AM GJCT CO 8 Good 2 0.2 PPM
4:00 AM GJCT CO 8 Good 2 0.2 PPM
3:00 AM FTC CO 8 Good 2 0.2 PPM
3:00 AM GJCT CO 8 Good 2 0.2 PPM
3:00 AM I25DEN CO 8 Good 2 0.2 PPM
2:00 AM CAMP CO 8 Good 2 0.2 PPM
2:00 AM GJCT CO 8 Good 2 0.2 PPM
2:00 AM I25DEN CO 8 Good 2 0.2 PPM
1:00 AM CAMP CO 8 Good 2 0.2 PPM
1:00 AM GJCT CO 8 Good 2 0.2 PPM
1:00 AM I25DEN CO 8 Good 2 0.2 PPM
10:00 AM CASA CO 8 Good 1 0.1 PPM
10:00 AM FTC CO 8 Good 1 0.1 PPM
10:00 AM GRET CO 8 Good 1 0.1 PPM
10:00 AM H24 CO 8 Good 1 0.1 PPM
10:00 AM WBY CO 8 Good 1 0.1 PPM
9:00 AM CASA CO 8 Good 1 0.1 PPM
9:00 AM FTC CO 8 Good 1 0.1 PPM
9:00 AM GRET CO 8 Good 1 0.1 PPM
9:00 AM H24 CO 8 Good 1 0.1 PPM
9:00 AM WBY CO 8 Good 1 0.1 PPM
8:00 AM CASA CO 8 Good 1 0.1 PPM
8:00 AM FTC CO 8 Good 1 0.1 PPM
8:00 AM GRET CO 8 Good 1 0.1 PPM
8:00 AM H24 CO 8 Good 1 0.1 PPM
8:00 AM WBY CO 8 Good 1 0.1 PPM
7:00 AM CASA CO 8 Good 1 0.1 PPM
7:00 AM FTC CO 8 Good 1 0.1 PPM
7:00 AM GRET CO 8 Good 1 0.1 PPM
7:00 AM H24 CO 8 Good 1 0.1 PPM
7:00 AM WBY CO 8 Good 1 0.1 PPM
6:00 AM CAMP CO 8 Good 1 0.1 PPM
6:00 AM CASA CO 8 Good 1 0.1 PPM
6:00 AM FTC CO 8 Good 1 0.1 PPM
6:00 AM GRET CO 8 Good 1 0.1 PPM
6:00 AM H24 CO 8 Good 1 0.1 PPM
6:00 AM WBY CO 8 Good 1 0.1 PPM
5:00 AM CAMP CO 8 Good 1 0.1 PPM
5:00 AM CASA CO 8 Good 1 0.1 PPM
5:00 AM FTC CO 8 Good 1 0.1 PPM
5:00 AM GRET CO 8 Good 1 0.1 PPM
5:00 AM H24 CO 8 Good 1 0.1 PPM
5:00 AM I25DEN CO 8 Good 1 0.1 PPM
5:00 AM WBY CO 8 Good 1 0.1 PPM
4:00 AM CAMP CO 8 Good 1 0.1 PPM
4:00 AM CASA CO 8 Good 1 0.1 PPM
4:00 AM FTC CO 8 Good 1 0.1 PPM
4:00 AM GRET CO 8 Good 1 0.1 PPM
4:00 AM H24 CO 8 Good 1 0.1 PPM
4:00 AM I25DEN CO 8 Good 1 0.1 PPM
4:00 AM WBY CO 8 Good 1 0.1 PPM
3:00 AM CAMP CO 8 Good 1 0.1 PPM
3:00 AM CASA CO 8 Good 1 0.1 PPM
3:00 AM GRET CO 8 Good 1 0.1 PPM
3:00 AM H24 CO 8 Good 1 0.1 PPM
3:00 AM WBY CO 8 Good 1 0.1 PPM
2:00 AM CASA CO 8 Good 1 0.1 PPM
2:00 AM FTC CO 8 Good 1 0.1 PPM
2:00 AM GRET CO 8 Good 1 0.1 PPM
2:00 AM H24 CO 8 Good 1 0.1 PPM
2:00 AM WBY CO 8 Good 1 0.1 PPM
1:00 AM CASA CO 8 Good 1 0.1 PPM
1:00 AM FTC CO 8 Good 1 0.1 PPM
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM H24 CO 8 Good 1 0.1 PPM
1:00 AM WBY CO 8 Good 1 0.1 PPM
5:00 AM I25GLO NO2 1 Good 24 25 PPB
6:00 AM I25DEN NO2 1 Good 20 21 PPB
6:00 AM I25GLO NO2 1 Good 20 21 PPB
10:00 AM I25GLO NO2 1 Good 18 19 PPB
9:00 AM I25DEN NO2 1 Good 17 18 PPB
7:00 AM CAMP NO2 1 Good 17 18 PPB
7:00 AM CAMP NO2 1 Good 17 18 PPB
7:00 AM I25GLO NO2 1 Good 17 18 PPB
5:00 AM CAMP NO2 1 Good 17 18 PPB
5:00 AM CAMP NO2 1 Good 17 18 PPB
5:00 AM I25DEN NO2 1 Good 17 18 PPB
4:00 AM I25GLO NO2 1 Good 17 18 PPB
7:00 AM I25DEN NO2 1 Good 16 17 PPB
6:00 AM CAMP NO2 1 Good 16 17 PPB
6:00 AM CAMP NO2 1 Good 16 17 PPB
9:00 AM I25GLO NO2 1 Good 15 16 PPB
4:00 AM CAMP NO2 1 Good 15 16 PPB
4:00 AM CAMP NO2 1 Good 15 16 PPB
10:00 AM I25DEN NO2 1 Good 14 15 PPB
1:00 AM CAMP NO2 1 Good 14 15 PPB
1:00 AM CAMP NO2 1 Good 14 15 PPB
7:00 AM CASA NO2 1 Good 12 13 PPB
8:00 AM CASA NO2 1 Good 11 12 PPB
6:00 AM CASA NO2 1 Good 11 12 PPB
4:00 AM I25DEN NO2 1 Good 11 12 PPB
3:00 AM I25DEN NO2 1 Good 11 12 PPB
7:00 AM WBY NO2 1 Good 10 11 PPB
7:00 AM WBY NO2 1 Good 10 11 PPB
6:00 AM WBY NO2 1 Good 10 11 PPB
6:00 AM WBY NO2 1 Good 10 11 PPB
9:00 AM CASA NO2 1 Good 9 10 PPB
5:00 AM CASA NO2 1 Good 8 9 PPB
3:00 AM I25GLO NO2 1 Good 8 9 PPB
2:00 AM CAMP NO2 1 Good 8 9 PPB
2:00 AM CAMP NO2 1 Good 8 9 PPB
2:00 AM CASA NO2 1 Good 8 8 PPB
1:00 AM I25GLO NO2 1 Good 8 8 PPB
10:00 AM CASA NO2 1 Good 7 7 PPB
4:00 AM CASA NO2 1 Good 7 7 PPB
3:00 AM CASA NO2 1 Good 7 7 PPB
5:00 AM WBY NO2 1 Good 6 6 PPB
5:00 AM WBY NO2 1 Good 6 6 PPB
2:00 AM I25DEN NO2 1 Good 6 6 PPB
1:00 AM CASA NO2 1 Good 6 6 PPB
1:00 AM I25DEN NO2 1 Good 6 6 PPB
4:00 AM WBY NO2 1 Good 5 5 PPB
4:00 AM WBY NO2 1 Good 5 5 PPB
3:00 AM CAMP NO2 1 Good 5 5 PPB
3:00 AM CAMP NO2 1 Good 5 5 PPB
10:00 AM WBY NO2 1 Good 4 4 PPB
10:00 AM WBY NO2 1 Good 4 4 PPB
9:00 AM WBY NO2 1 Good 4 4 PPB
9:00 AM WBY NO2 1 Good 4 4 PPB
2:00 AM I25GLO NO2 1 Good 4 4 PPB
3:00 AM WBY NO2 1 Good 3 3 PPB
3:00 AM WBY NO2 1 Good 3 3 PPB
2:00 AM WBY NO2 1 Good 3 3 PPB
2:00 AM WBY NO2 1 Good 3 3 PPB
1:00 AM WBY NO2 1 Good 3 3 PPB
1:00 AM WBY NO2 1 Good 3 3 PPB

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