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Colorado Department of Public Health and Environment

AQI Calculations on 10/06/2008 1:00AM - 5:00PM

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.

Click on the column headings to sort data.

All data are collected real-time and have not been corrected nor validated.

Time/Date
(MST)
 Monitoring Location Pollutant Interval
(Hr)
 Air Quality AQI Avg.
5:00 PM ACAD O3 8 Good 34 40 PPB
5:00 PM ARV O3 8 Good 30 35 PPB
5:00 PM CAMP CO 8 Good 6 0.5 PPM
5:00 PM CAMP PM10 24 Good 11 12 µg/m3
5:00 PM CAMP PM2.5 24 Good 18 6 µg/m3
5:00 PM CAMP SO2 24 Good 6 0.004 PPM
5:00 PM CCOL PM2.5 24 Good 24 8 µg/m3
5:00 PM CHAT O3 8 Good 30 35 PPB
5:00 PM CHAT PM2.5 24 Good 28 9 µg/m3
5:00 PM COMM PM2.5 24 Good 10 3 µg/m3
5:00 PM CRG O3 8 Good 27 32 PPB
5:00 PM DMAS CO 8 Good 2 0.2 PPM
5:00 PM DMAS O3 8 Good 21 25 PPB
5:00 PM DMAS PM10 24 Good 10 11 µg/m3
5:00 PM DMAS PM2.5 24 Good 28 9 µg/m3
5:00 PM FTC CO 8 Good 2 0.2 PPM
5:00 PM FTC O3 8 Good 27 32 PPB
5:00 PM FTCW O3 8 Good 34 40 PPB
5:00 PM GJCT CO 8 Good 7 0.6 PPM
5:00 PM GJCT PM10 24 Good 20 22 µg/m3
5:00 PM GREH PM2.5 24 Good 7 2 µg/m3
5:00 PM GRET O3 8 Good 33 39 PPB
5:00 PM LNGM PM2.5 24 Good 15 5 µg/m3
5:00 PM MAN O3 8 Good 31 36 PPB
5:00 PM NJH PM2.5 24 Good 16 5 µg/m3
5:00 PM RFN O3 8 Good 32 38 PPB
5:00 PM RIFL PM2.5 24 Good 23 7 µg/m3
5:00 PM SBC O3 8 Good 34 40 PPB
5:00 PM WBY CO 8 Good 6 0.5 PPM
5:00 PM WBY O3 8 Good 31 36 PPB
5:00 PM WBY PM10 24 Good 11 12 µg/m3
5:00 PM WBY SO2 24 Good 0 0.000 PPM
5:00 PM WCH O3 8 Good 28 33 PPB
4:00 PM ACAD O3 8 Good 32 38 PPB
4:00 PM ARV O3 8 Good 29 34 PPB
4:00 PM CAMP CO 8 Good 6 0.5 PPM
4:00 PM CAMP PM10 24 Good 12 13 µg/m3
4:00 PM CAMP PM2.5 24 Good 19 6 µg/m3
4:00 PM CAMP SO2 24 Good 6 0.004 PPM
4:00 PM CCOL PM2.5 24 Good 24 8 µg/m3
4:00 PM CHAT O3 8 Good 28 33 PPB
4:00 PM CHAT PM2.5 24 Good 28 9 µg/m3
4:00 PM COMM PM2.5 24 Good 10 3 µg/m3
4:00 PM CRG O3 8 Good 24 28 PPB
4:00 PM DMAS CO 8 Good 2 0.2 PPM
4:00 PM DMAS O3 8 Good 18 21 PPB
4:00 PM DMAS PM10 24 Good 11 12 µg/m3
4:00 PM DMAS PM2.5 24 Good 28 9 µg/m3
4:00 PM FTC CO 8 Good 2 0.2 PPM
4:00 PM FTC O3 8 Good 28 33 PPB
4:00 PM FTCW O3 8 Good 33 39 PPB
4:00 PM GJCT CO 8 Good 7 0.6 PPM
4:00 PM GJCT PM10 24 Good 19 21 µg/m3
4:00 PM GREH PM2.5 24 Good 7 2 µg/m3
4:00 PM GRET O3 8 Good 32 38 PPB
4:00 PM LNGM PM2.5 24 Good 15 5 µg/m3
4:00 PM MAN O3 8 Good 30 35 PPB
4:00 PM NJH PM2.5 24 Good 16 5 µg/m3
4:00 PM RFN O3 8 Good 32 38 PPB
4:00 PM RIFL PM2.5 24 Good 23 7 µg/m3
4:00 PM SBC O3 8 Good 33 39 PPB
4:00 PM WBY CO 8 Good 6 0.5 PPM
4:00 PM WBY O3 8 Good 28 33 PPB
4:00 PM WBY PM10 24 Good 12 13 µg/m3
4:00 PM WBY SO2 24 Good 0 0.000 PPM
4:00 PM WCH O3 8 Good 27 32 PPB
3:00 PM ACAD O3 8 Good 29 34 PPB
3:00 PM ARV O3 8 Good 25 30 PPB
3:00 PM CAMP CO 8 Good 7 0.6 PPM
3:00 PM CAMP PM10 24 Good 12 13 µg/m3
3:00 PM CAMP PM2.5 24 Good 19 6 µg/m3
3:00 PM CAMP SO2 24 Good 6 0.004 PPM
3:00 PM CCOL PM2.5 24 Good 23 7 µg/m3
3:00 PM CHAT O3 8 Good 25 30 PPB
3:00 PM CHAT PM2.5 24 Good 28 9 µg/m3
3:00 PM COMM PM2.5 24 Good 10 3 µg/m3
3:00 PM CRG O3 8 Good 22 26 PPB
3:00 PM DMAS CO 8 Good 2 0.2 PPM
3:00 PM DMAS O3 8 Good 17 20 PPB
3:00 PM DMAS PM10 24 Good 12 13 µg/m3
3:00 PM DMAS PM2.5 24 Good 28 9 µg/m3
3:00 PM FTC CO 8 Good 2 0.2 PPM
3:00 PM FTC O3 8 Good 27 32 PPB
3:00 PM FTCW O3 8 Good 33 39 PPB
3:00 PM GJCT CO 8 Good 8 0.7 PPM
3:00 PM GJCT PM10 24 Good 19 21 µg/m3
3:00 PM GREH PM2.5 24 Good 7 2 µg/m3
3:00 PM GRET O3 8 Good 30 35 PPB
3:00 PM LNGM PM2.5 24 Good 15 5 µg/m3
3:00 PM MAN O3 8 Good 29 34 PPB
3:00 PM NJH PM2.5 24 Good 16 5 µg/m3
3:00 PM RFN O3 8 Good 31 37 PPB
3:00 PM RIFL PM2.5 24 Good 23 7 µg/m3
3:00 PM SBC O3 8 Good 31 36 PPB
3:00 PM WBY CO 8 Good 6 0.5 PPM
3:00 PM WBY O3 8 Good 25 29 PPB
3:00 PM WBY PM10 24 Good 16 17 µg/m3
3:00 PM WBY SO2 24 Good 0 0.000 PPM
3:00 PM WCH O3 8 Good 25 30 PPB
2:00 PM ACAD O3 8 Good 24 28 PPB
2:00 PM ARV O3 8 Good 21 25 PPB
2:00 PM CAMP CO 8 Good 7 0.6 PPM
2:00 PM CAMP PM10 24 Good 12 13 µg/m3
2:00 PM CAMP PM2.5 24 Good 19 6 µg/m3
2:00 PM CAMP SO2 24 Good 6 0.004 PPM
2:00 PM CCOL PM2.5 24 Good 23 7 µg/m3
2:00 PM CHAT O3 8 Good 23 27 PPB
2:00 PM CHAT PM2.5 24 Good 27 8 µg/m3
2:00 PM COMM PM2.5 24 Good 10 3 µg/m3
2:00 PM CRG O3 8 Good 19 23 PPB
2:00 PM DMAS CO 8 Good 2 0.2 PPM
2:00 PM DMAS O3 8 Good 14 17 PPB
2:00 PM DMAS PM10 24 Good 12 13 µg/m3
2:00 PM DMAS PM2.5 24 Good 27 8 µg/m3
2:00 PM FTC CO 8 Good 2 0.2 PPM
2:00 PM FTC O3 8 Good 25 29 PPB
2:00 PM FTCW O3 8 Good 32 38 PPB
2:00 PM GJCT CO 8 Good 9 0.8 PPM
2:00 PM GJCT PM10 24 Good 19 20 µg/m3
2:00 PM GREH PM2.5 24 Good 7 2 µg/m3
2:00 PM GRET O3 8 Good 28 33 PPB
2:00 PM LNGM PM2.5 24 Good 15 5 µg/m3
2:00 PM MAN O3 8 Good 27 32 PPB
2:00 PM NJH PM2.5 24 Good 16 5 µg/m3
2:00 PM RFN O3 8 Good 30 35 PPB
2:00 PM RIFL PM2.5 24 Good 23 7 µg/m3
2:00 PM SBC O3 8 Good 27 32 PPB
2:00 PM WBY CO 8 Good 7 0.6 PPM
2:00 PM WBY O3 8 Good 20 24 PPB
2:00 PM WBY PM10 24 Good 15 16 µg/m3
2:00 PM WBY SO2 24 Good 0 0.000 PPM
2:00 PM WCH O3 8 Good 24 28 PPB
1:00 PM ACAD O3 8 Good 19 23 PPB
1:00 PM ARV O3 8 Good 17 20 PPB
1:00 PM CAMP CO 8 Good 8 0.7 PPM
1:00 PM CAMP PM10 24 Good 12 13 µg/m3
1:00 PM CAMP PM2.5 24 Good 18 6 µg/m3
1:00 PM CAMP SO2 24 Good 6 0.004 PPM
1:00 PM CCOL PM2.5 24 Good 23 7 µg/m3
1:00 PM CHAT O3 8 Good 20 24 PPB
1:00 PM CHAT PM2.5 24 Good 26 8 µg/m3
1:00 PM COMM PM2.5 24 Good 10 3 µg/m3
1:00 PM CRG O3 8 Good 16 19 PPB
1:00 PM DMAS CO 8 Good 3 0.3 PPM
1:00 PM DMAS O3 8 Good 12 14 PPB
1:00 PM DMAS PM10 24 Good 12 13 µg/m3
1:00 PM DMAS PM2.5 24 Good 27 8 µg/m3
1:00 PM FTC CO 8 Good 2 0.2 PPM
1:00 PM FTC O3 8 Good 24 28 PPB
1:00 PM FTCW O3 8 Good 31 37 PPB
1:00 PM GJCT CO 8 Good 10 0.9 PPM
1:00 PM GJCT PM10 24 Good 19 20 µg/m3
1:00 PM GREH PM2.5 24 Good 7 2 µg/m3
1:00 PM GRET O3 8 Good 26 31 PPB
1:00 PM LNGM PM2.5 24 Good 15 5 µg/m3
1:00 PM MAN O3 8 Good 26 31 PPB
1:00 PM NJH PM2.5 24 Good 16 5 µg/m3
1:00 PM RFN O3 8 Good 29 34 PPB
1:00 PM RIFL PM2.5 24 Good 24 7 µg/m3
1:00 PM SBC O3 8 Good 25 30 PPB
1:00 PM WBY CO 8 Good 8 0.7 PPM
1:00 PM WBY O3 8 Good 18 21 PPB
1:00 PM WBY PM10 24 Good 16 17 µg/m3
1:00 PM WBY SO2 24 Good 0 0.000 PPM
1:00 PM WCH O3 8 Good 22 26 PPB
12:00 PM ACAD O3 8 Good 16 19 PPB
12:00 PM ARV O3 8 Good 13 15 PPB
12:00 PM CAMP CO 8 Good 8 0.7 PPM
12:00 PM CAMP PM10 24 Good 11 12 µg/m3
12:00 PM CAMP PM2.5 24 Good 18 5 µg/m3
12:00 PM CAMP SO2 24 Good 6 0.004 PPM
12:00 PM CCOL PM2.5 24 Good 23 7 µg/m3
12:00 PM CHAT O3 8 Good 19 22 PPB
12:00 PM CHAT PM2.5 24 Good 26 8 µg/m3
12:00 PM COMM PM2.5 24 Good 10 3 µg/m3
12:00 PM CRG O3 8 Good 13 15 PPB
12:00 PM DMAS CO 8 Good 3 0.3 PPM
12:00 PM DMAS O3 8 Good 9 11 PPB
12:00 PM DMAS PM10 24 Good 12 13 µg/m3
12:00 PM DMAS PM2.5 24 Good 26 8 µg/m3
12:00 PM FTC CO 8 Good 2 0.2 PPM
12:00 PM FTC O3 8 Good 23 27 PPB
12:00 PM FTCW O3 8 Good 31 36 PPB
12:00 PM GJCT CO 8 Good 10 0.9 PPM
12:00 PM GJCT PM10 24 Good 19 20 µg/m3
12:00 PM GJPB PM2.5 24 Good 20 6 µg/m3
12:00 PM GREH PM2.5 24 Good 7 2 µg/m3
12:00 PM GRET O3 8 Good 24 28 PPB
12:00 PM LNGM PM2.5 24 Good 15 5 µg/m3
12:00 PM MAN O3 8 Good 25 30 PPB
12:00 PM NJH PM2.5 24 Good 15 5 µg/m3
12:00 PM RFN O3 8 Good 27 32 PPB
12:00 PM RIFL PM2.5 24 Good 24 8 µg/m3
12:00 PM SBC O3 8 Good 23 27 PPB
12:00 PM WBY CO 8 Good 8 0.7 PPM
12:00 PM WBY O3 8 Good 15 18 PPB
12:00 PM WBY PM10 24 Good 17 18 µg/m3
12:00 PM WBY SO2 24 Good 0 0.000 PPM
12:00 PM WCH O3 8 Good 20 24 PPB
11:00 AM ACAD O3 8 Good 14 17 PPB
11:00 AM ARV O3 8 Good 9 11 PPB
11:00 AM CAMP CO 8 Good 7 0.6 PPM
11:00 AM CAMP PM10 24 Good 11 12 µg/m3
11:00 AM CAMP PM2.5 24 Good 17 5 µg/m3
11:00 AM CAMP SO2 24 Good 6 0.004 PPM
11:00 AM CCOL PM2.5 24 Good 23 7 µg/m3
11:00 AM CHAT O3 8 Good 18 21 PPB
11:00 AM CHAT PM2.5 24 Good 25 8 µg/m3
11:00 AM COMM PM2.5 24 Good 10 3 µg/m3
11:00 AM CRG O3 8 Good 11 13 PPB
11:00 AM DMAS CO 8 Good 2 0.2 PPM
11:00 AM DMAS O3 8 Good 8 10 PPB
11:00 AM DMAS PM10 24 Good 11 12 µg/m3
11:00 AM DMAS PM2.5 24 Good 25 8 µg/m3
11:00 AM FTC CO 8 Good 2 0.2 PPM
11:00 AM FTC O3 8 Good 21 25 PPB
11:00 AM FTCW O3 8 Good 30 35 PPB
11:00 AM GJCT CO 8 Good 11 1.0 PPM
11:00 AM GJCT PM10 24 Good 19 20 µg/m3
11:00 AM GJPB PM2.5 24 Good 20 6 µg/m3
11:00 AM GREH PM2.5 24 Good 8 2 µg/m3
11:00 AM GRET O3 8 Good 22 26 PPB
11:00 AM LNGM PM2.5 24 Good 15 5 µg/m3
11:00 AM MAN O3 8 Good 25 30 PPB
11:00 AM NJH PM2.5 24 Good 14 4 µg/m3
11:00 AM RFN O3 8 Good 27 32 PPB
11:00 AM RIFL PM2.5 24 Good 23 7 µg/m3
11:00 AM SBC O3 8 Good 20 24 PPB
11:00 AM WBY CO 8 Good 8 0.7 PPM
11:00 AM WBY O3 8 Good 10 12 PPB
11:00 AM WBY PM10 24 Good 16 17 µg/m3
11:00 AM WBY SO2 24 Good 0 0.000 PPM
11:00 AM WCH O3 8 Good 20 24 PPB
10:00 AM ACAD O3 8 Good 15 18 PPB
10:00 AM ARV O3 8 Good 7 8 PPB
10:00 AM CAMP CO 8 Good 7 0.6 PPM
10:00 AM CAMP PM10 24 Good 10 11 µg/m3
10:00 AM CAMP PM2.5 24 Good 16 5 µg/m3
10:00 AM CAMP SO2 24 Good 6 0.004 PPM
10:00 AM CCOL PM2.5 24 Good 22 7 µg/m3
10:00 AM CHAT O3 8 Good 16 19 PPB
10:00 AM CHAT PM2.5 24 Good 25 8 µg/m3
10:00 AM COMM PM2.5 24 Good 10 3 µg/m3
10:00 AM CRG O3 8 Good 9 11 PPB
10:00 AM DMAS CO 8 Good 2 0.2 PPM
10:00 AM DMAS O3 8 Good 8 10 PPB
10:00 AM DMAS PM10 24 Good 11 12 µg/m3
10:00 AM DMAS PM2.5 24 Good 24 7 µg/m3
10:00 AM FTC CO 8 Good 2 0.2 PPM
10:00 AM FTC O3 8 Good 19 22 PPB
10:00 AM FTCW O3 8 Good 28 33 PPB
10:00 AM GJCT CO 8 Good 11 1.0 PPM
10:00 AM GJCT PM10 24 Good 18 19 µg/m3
10:00 AM GJPB PM2.5 24 Good 20 6 µg/m3
10:00 AM GREH PM2.5 24 Good 7 2 µg/m3
10:00 AM GRET O3 8 Good 20 24 PPB
10:00 AM LNGM PM2.5 24 Good 16 5 µg/m3
10:00 AM MAN O3 8 Good 25 29 PPB
10:00 AM NJH PM2.5 24 Good 14 4 µg/m3
10:00 AM RFN O3 8 Good 26 31 PPB
10:00 AM RIFL PM2.5 24 Good 23 7 µg/m3
10:00 AM SBC O3 8 Good 19 23 PPB
10:00 AM WBY CO 8 Good 8 0.7 PPM
10:00 AM WBY O3 8 Good 7 8 PPB
10:00 AM WBY PM10 24 Good 16 17 µg/m3
10:00 AM WBY SO2 24 Good 0 0.000 PPM
10:00 AM WCH O3 8 Good 19 22 PPB
9:00 AM ACAD O3 8 Good 14 17 PPB
9:00 AM ARV O3 8 Good 5 6 PPB
9:00 AM CAMP CO 8 Good 7 0.6 PPM
9:00 AM CAMP PM10 24 Good 10 11 µg/m3
9:00 AM CAMP PM2.5 24 Good 16 5 µg/m3
9:00 AM CAMP SO2 24 Good 6 0.004 PPM
9:00 AM CCOL PM2.5 24 Good 22 7 µg/m3
9:00 AM CHAT O3 8 Good 15 18 PPB
9:00 AM CHAT PM2.5 24 Good 24 8 µg/m3
9:00 AM COMM PM2.5 24 Good 9 3 µg/m3
9:00 AM CRG O3 8 Good 9 11 PPB
9:00 AM DMAS CO 8 Good 2 0.2 PPM
9:00 AM DMAS O3 8 Good 9 11 PPB
9:00 AM DMAS PM10 24 Good 10 11 µg/m3
9:00 AM DMAS PM2.5 24 Good 23 7 µg/m3
9:00 AM FTC CO 8 Good 2 0.2 PPM
9:00 AM FTC O3 8 Good 17 20 PPB
9:00 AM FTCW O3 8 Good 25 30 PPB
9:00 AM GJCT CO 8 Good 10 0.9 PPM
9:00 AM GJCT PM10 24 Good 17 18 µg/m3
9:00 AM GJPB PM2.5 24 Good 20 6 µg/m3
9:00 AM GREH PM2.5 24 Good 8 3 µg/m3
9:00 AM GRET O3 8 Good 19 22 PPB
9:00 AM LNGM PM2.5 24 Good 16 5 µg/m3
9:00 AM MAN O3 8 Good 24 28 PPB
9:00 AM NJH PM2.5 24 Good 13 4 µg/m3
9:00 AM RFN O3 8 Good 25 29 PPB
9:00 AM RIFL PM2.5 24 Good 25 8 µg/m3
9:00 AM SBC O3 8 Good 17 20 PPB
9:00 AM WBY CO 8 Good 8 0.7 PPM
9:00 AM WBY O3 8 Good 4 5 PPB
9:00 AM WBY PM10 24 Good 16 17 µg/m3
9:00 AM WBY SO2 24 Good 0 0.000 PPM
9:00 AM WCH O3 8 Good 17 20 PPB
8:00 AM ACAD O3 8 Good 14 17 PPB
8:00 AM ARV O3 8 Good 3 4 PPB
8:00 AM CAMP CO 8 Good 6 0.5 PPM
8:00 AM CAMP PM10 24 Good 9 10 µg/m3
8:00 AM CAMP PM2.5 24 Good 14 4 µg/m3
8:00 AM CAMP SO2 24 Good 6 0.004 PPM
8:00 AM CCOL PM2.5 24 Good 22 7 µg/m3
8:00 AM CHAT O3 8 Good 15 18 PPB
8:00 AM CHAT PM2.5 24 Good 24 7 µg/m3
8:00 AM COMM PM2.5 24 Good 8 3 µg/m3
8:00 AM CRG O3 8 Good 8 10 PPB
8:00 AM DMAS CO 8 Good 2 0.2 PPM
8:00 AM DMAS O3 8 Good 10 12 PPB
8:00 AM DMAS PM10 24 Good 10 11 µg/m3
8:00 AM DMAS PM2.5 24 Good 23 7 µg/m3
8:00 AM FTC CO 8 Good 2 0.2 PPM
8:00 AM FTC O3 8 Good 14 17 PPB
8:00 AM FTCW O3 8 Good 24 28 PPB
8:00 AM GJCT CO 8 Good 10 0.9 PPM
8:00 AM GJCT PM10 24 Good 16 17 µg/m3
8:00 AM GREH PM2.5 24 Good 8 3 µg/m3
8:00 AM GRET O3 8 Good 18 21 PPB
8:00 AM LNGM PM2.5 24 Good 16 5 µg/m3
8:00 AM