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Air Quality Index Yearly Summary

Reporting for

Daily AQI Results for all Metro Areas
From results published at 7:13 pm MST
Jan 2019
Date PM-10  PM-2.5  PM-2.5  O3  SO2 
01 500 500 30 32 NA
C8000 C8000 C3 C32 C1035
02 500 500 33 33 101
C8000 C8000 C3 C32 C1035
03 500 500 31 32 1
C8000 C8000 C3 C1030 C1035
04 500 500 45 34 NA
C8000 C8000 C3 C1030 C1035
05 500 500 51 29 NA
C8000 C8000 C3 C1030 C1035
06 500 500 38 32 NA
C8000 C8000 C3 C1030 C1035
07 500 500 30 34 NA
C8000 C8000 C3 C32 C1035
08 500 500 43 33 4
C8000 C8000 C3 C32 C1035
09 500 500 53 33 3
C8000 C8000 C3 C32 C1035
10 500 500 47 31 NA
C8000 C8000 C3 C32 C1035
11 500 500 30 31 1
C8000 C8000 C1035 C32 C1035
12 500 500 42 32 NA
C8000 C8000 C3 C32 C1035
13 500 500 45 31 NA
C8000 C8000 C3 C8000 C1035
14 500 500 54 29 1
C8000 C8000 C3 C32 C1035
15 500 500 58 27 NA
C8000 C8000 C3 C32 C1035
16 500 500 53 31 1
C8000 C8000 C3 C32 C1035
17 500 500 66 32 2
C8000 C8000 C3 C32 C1035
18 500 500 52 34 1
C8000 C8000 C3 C32 C1035
19 500 500 35 32 1
C8000 C8000 C1035 C32 C1035
20 500 500 27 33 1
C8000 C8000 C1035 C8000 C1035
21 500 500 36 36 1
C8000 C8000 C3 C8000 C1035
22 500 500 41 34 1
C8000 C8000 C3 C32 C1035
23 500 500 38 34 1
C8000 C8000 C3 C32 C1035
24 500 500 33 35 NA
C8000 C8000 C3 C32 C1035
25 500 500 32 36 NA
C8000 C8000 C1036 C8000 C1035
26 500 500 36 36 NA
C8000 C8000 C3 C1030 C1035
27 500 500 39 38 NA
C8000 C8000 C3 C32 C1035
28 500 500 35 35 1
C8000 C8000 C3 C32 C1035
29 500 500 46 31 NA
C8000 C8000 C3 C32 C1035
30 500 500 35 33 60
C8000 C8000 C1036 C32 C1035
31 500 500 42 31 1
C8000 C8000 C1035 C1030 C1035

Feb 2019
Date PM-10  PM-2.5  PM-2.5  O3  SO2 
01 500 500 53 36 NA
C8000 C8000 C3 C1030 C1035
02 500 500 56 37 NA
C8000 C8000 C3 C8000 C1035
03 500 500 44 36 NA
C8000 C8000 C1035 C8000 C1035
04 500 500 48 36 1
C8000 C8000 C1035 C8000 C1035
05 500 500 28 40 103
C8000 C8000 C1036 C8000 C1035
06 500 500 26 130 91
C8000 C8000 C1036 C8000 C1035
07 500 500 27 32 NA
C8000 C8000 C1035 C1030 C1035
08 500 500 43 36 NA
C8000 C8000 C3 C1030 C1035
09 500 500 44 37 NA
C8000 C8000 C3 C8000 C1035
10 500 500 32 38 NA
C8000 C8000 C3 C8000 C1035
11 500 500 44 38 NA
C8000 C8000 C3 C1030 C1035
12 500 500 28 37 81
C8000 C8000 C3 C1030 C1035
13 500 500 30 34 NA
C8000 C8000 C3 C32 C1035
14 500 500 35 39 NA
C8000 C8000 C3 C8000 C1035
15 500 500 31 39 4
C8000 C8000 C3 C32 C1035
16 500 500 23 38 4
C8000 C8000 C1036 C8000 C1035
17 500 500 31 36 4
C8000 C8000 C3 C1030 C1035
18 500 500 24 36 4
C8000 C8000 C1036 C32 C1035
19 500 500 36 36 4
C8000 C8000 C3 C8000 C1035
20 500 500 47 36 3
C8000 C8000 C3 C1030 C1035
21 500 500 28 34 3
C8000 C8000 C3 C32 C1035
22 500 500 32 37 3
C8000 C8000 C3 C32 C1035
23 500 500 27 37 3
C8000 C8000 C3 C32 C1035
24 500 500 24 36 3
C8000 C8000 C3 C32 C1035
25 500 500 28 35 3
C8000 C8000 C1035 C1030 C1035
26 500 500 33 41 3
C8000 C8000 C3 C8000 C1035
27 500 500 38 42 3
C8000 C8000 C3 C8000 C1035
28 500 500 32 42 3
C8000 C8000 C1035 C1030 C1035

Mar 2019
Date PM-10  PM-2.5  PM-2.5  O3  SO2 
01 500 500 34 39 NA
C8000 C8000 C3 C1030 C1035
02 500 500 42 39 1
C8000 C8000 C1035 C32 C1035
03 500 500 33 40 NA
C8000 C8000 C1036 C8000 C1035
04 500 500 29 39 NA
C8000 C8000 C1036 C1030 C1035
05 500 500 37 39 2
C8000 C8000 C1036 C8000 C1035
06 500 500 47 41 1
C8000 C8000 C3 C1030 C1035
07 500 500 29 42 NA
C8000 C8000 C3 C8000 C1035
08 500 500 23 38 NA
C8000 C8000 C3 C32 C1035
09 500 500 31 42 NA
C8000 C8000 C1035 C1030 C1035
10 500 500 32 42 NA
C8000 C8000 C1036 C8000 C1035
11 500 500 28 42 NA
C8000 C8000 C1036 C32 C1035
12 500 500 41 38 NA
C8000 C8000 C3 C8000 C1035
13 500 500 35 42 NA
C8000 C8000 C3 C1030 C1035
14 500 500 31 42 NA
C8000 C8000 C1035 C32 C1035
15 500 500 36 43 3
C8000 C8000 C1036 C32 C1035
16 500 500 39 43 3
C8000 C8000 C1036 C8000 C1035
17 500 500 45 44 3
C8000 C8000 C1036 C8000 C1035
18 500 500 31 47 3
C8000 C8000 C1036 C8000 C1035
19 500 500 37 42 3
C8000 C8000 C1036 C8000 C1035
20 500 500 35 42 4
C8000 C8000 C3 C32 C1035
21 500 500 37 45 4
C8000 C8000 C1035 C32 C1035
22 500 500 36 46 4
C8000 C8000 C3 C1030 C1035
23 500 500 28 46 4
C8000 C8000 C3 C1030 C1035
24 500 500 30 50 4
C8000 C8000 C1036 C8000 C1035
25 500 500 24 54 4
C8000 C8000 C1035 C8000 C1035
26 500 500 28 61 4
C8000 C8000 C1035 C8000 C1035
27 500 500 26 47 4
C8000 C8000 C3 C8000 C1035
28 500 500 31 58 4
C8000 C8000 C1035 C1030 C1035
29 500 500 32 47 4
C8000 C8000 C1035 C1030 C1035
30 500 500 34 43 3
C8000 C8000 C1035 C1030 C1035
31 500 500 26 44 4
C8000 C8000 C1035 C1030 C1035

Apr 2019
Date PM-10  PM-2.5  PM-2.5  O3  SO2 
01 500 500 29 46 4
C8000 C8000 C1035 C1030 C1035
02 500 500 29 48 4
C8000 C8000 C3 C1030 C1035
03 500 500 31 46 4
C8000 C8000 C1035 C1030 C1035
04 500 500 33 45 4
C8000 C8000 C1035 C8000 C1035
05 500 500 31 42 4
C8000 C8000 C1035 C1030 C1035
06 500 500 36 42 4
C8000 C8000 C1035 C8000 C1035
07 500 500 38 47 4
C8000 C8000 C1035 C8000 C1035
08 500 500 30 47 3
C8000 C8000 C1035 C8000 C1035
09 500 500 31 48 3
C8000 C8000 C1035 C8000 C1035
10 500 500 32 43 4
C8000 C8000 C1035 C8000 C1035
11 500 500 31 43 4
C8000 C8000 C1035 C8000 C1035
12 500 500 35 43 3
C8000 C8000 C1035 C1030 C1035
13 500 500 31 48 3
C8000 C8000 C1035 C8000 C1035
14 500 500 28 61 3
C8000 C8000 C1035 C8000 C1035
15 500 500 33 50 4
C8000 C8000 C1035 C1030 C1035
16 500 500 30 42 3
C8000 C8000 C1035 C1030 C1035
17 500 500 33 45 4
C8000 C8000 C1035 C1030 C1035
18 500 500 37 43 3
C8000 C8000 C1035 C1030 C1035
19 500 500 41 46 5
C8000 C8000 C1035 C8000 C1035
20 500 500 32 58 5
C8000 C8000 C1035 C8000 C1035
21 500 500 39 47 5
C8000 C8000 C1035 C8000 C1035
22 500 500 36 46 4
C8000 C8000 C1035 C1030 C1035
23 500 500 35 43 4
C8000 C8000 C1035 C1030 C1035
24 500 500 34 54 4
C8000 C8000 C1035 C1030 C1035
25 500 500 34 49 4
C8000 C8000 C1035 C1030 C1035
26 500 500 32 61 3
C8000 C8000 C1035 C1030 C1035
27 500 500 34 54 5
C8000 C8000 C1035 C1030 C1035
28 500 500 40 47 5
C8000 C8000 C1035 C1030 C1035
29 500 500 38 39 17
C8000 C8000 C1035 C32 C1035
30 500 500 44 44 102
C8000 C8000 C1035 C8000 C1035

May 2019
Date PM-10  PM-2.5  PM-2.5  O3  SO2 
01 500 500 41 46 1
C8000 C8000 C1035 C1030 C1035
02 500 500 49 58 1
C8000 C8000 C1035 C8000 C1035
03 500 500 47 77 1
C8000 C8000 C1035 C1030 C1035
04 500 500 40 77 1
C8000 C8000 C1035 C8000 C1035
05 500 500 51 74 1
C8000 C8000 C1035 C8000 C1035
06 500 500 46 45 1
C8000 C8000 C1035 C8000 C1035
07 500 500 45 42 95
C8000 C8000 C1035 C8000 C1035
08 500 500 43 42 1
C8000 C8000 C1035 C8000 C1035
09 500 500 47 42 NA
C8000 C8000 C1035 C1030 C1035
10 500 500 41 39 1
C8000 C8000 C1035 C1030 C1035
11 500 500 46 40 1
C8000 C8000 C1035 C8000 C1035
12 500 500 48 49 1
C8000 C8000 C1035 C8000 C1035
13 500 500 49 67 1
C8000 C8000 C1035 C8000 C1035
14 500 500 44 58 13
C8000 C8000 C1035 C1030 C1035
15 500 500 49 49 2
C8000 C8000 C1035 C1030 C1035
16 500 500 46 47 1
C8000 C8000 C1035 C8000 C1035
17 500 500 51 46 1
C8000 C8000 C1035 C1030 C1035
18 500 500 51 48 1
C8000 C8000 C1035 C1030 C1035
19 500 500 53 44 1
C8000 C8000 C1035 C8000 C1035

PLEASE NOTE: This data has not been verified by the TREX and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from TREX ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.