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Air Quality Index Yearly Summary

Reporting for

Daily AQI Results for all Metro Areas
From results published at 10:56 am PDT
Jan 2021
Date PM-10  PM-2.5  O3  CO  SO2  NO2 
01 23 51 37 10 1 34
C561 C561 C44 C561 C540 C1501
02 47 83 32 17 2 37
C561 C561 C44 C561 C540 C1501
03 58 112 34 22 2 40
C561 C561 C44 C561 C540 C1502
04 56 95 38 20 4 50
C561 C561 C1019 C561 C540 C1501
05 40 57 37 11 3 42
C561 C561 C601 C1501 C540 C1501
06 54 73 35 21 3 41
C561 C561 C24 C561 C540 C561
07 67 97 31 23 4 47
C561 C561 C1019 C561 C540 C1501
08 61 99 36 23 4 45
C561 C561 C24 C561 C540 C1502
09 30 33 39 5 4 35
C561 C561 C73 C561 C540 C561
10 32 61 37 16 2 37
C561 C561 C1019 C561 C540 C1501
11 44 70 36 14 3 39
C561 C561 C601 C561 C540 C1501
12 60 93 31 22 5 48
C561 C561 C24 C561 C540 C561
13 62 92 31 12 5 45
C561 C561 C1019 C1501 C540 C1501
14 54 71 36 13 4 44
C561 C561 C601 C561 C540 C540
15 51 67 36 19 4 46
C561 C561 C24 C561 C540 C1502
16 54 70 37 13 3 37
C540 C561 C24 C561 C540 C1502
17 55 92 37 21 4 42
C561 C561 C24 C561 C540 C1501
18 55 57 41 10 4 35
C540 C561 C71 C561 C540 C1501
19 39 21 36 2 0 15
C24 C561 C71 C561 C540 C561
20 31 33 33 12 2 36
C540 C561 C24 C561 C540 C1502
21 51 57 34 13 3 38
C540 C540 C1019 C561 C540 C1502
22 46 48 43 10 3 34
C540 C540 C71 C561 C540 C1502
23 14 21 38 6 1 28
C75 C540 C1019 C1501 C540 C561
24 17 36 39 5 1 30
C540 C540 C71 C561 C540 C1501
25 10 19 33 5 0 26
C561 C1501 C44 C1501 C540 C1501
26 11 32 31 6 0 26
C43 C1501 C24 C1501 C540 C1501
27 15 28 37 6 0 30
C43 C71 C1019 C1501 C540 C1501
28 22 47 39 8 2 37
C540 C540 C1019 C1501 C540 C561
29 11 18 39 6 0 32
C561 C1501 C71 C561 C540 C1502
30 21 43 37 11 1 35
C540 C540 C71 C561 C540 C1501
31 32 63 36 10 2 37
C540 C540 C73 C561 C540 C561

Feb 2021
Date PM-10  PM-2.5  O3  CO  SO2  NO2 
01 26 46 31 11 2 43
C540 C540 C73 C561 C540 C1501
02 39 56 32 12 3 38
C540 C540 C1019 C561 C540 C1501
03 20 16 46 4 1 29
C540 C540 C71 C1501 C540 C561
04 22 14 44 5 1 40
C24 C24 C71 C1501 C540 C540
05 26 33 39 11 2 39
C540 C540 C44 C1501 C540 C1501
06 77 61 41 16 3 41
C24 C24 C71 C561 C540 C561
07 49 71 37 16 3 39
C540 C540 C71 C561 C540 C561
08 49 68 46 14 4 46
C540 C540 C1019 C561 C540 C561
09 49 60 43 9 4 45
C540 C540 C1019 C561 C540 C540
10 41 56 43 12 3 44
C540 C540 C24 C561 C540 C1502
11 32 44 39 8 3 36
C540 C540 C44 C561 C540 C1502
12 23 25 41 7 0 34
C540 C1501 C24 C1501 C540 C1501
13 44 21 44 4 0 30
C540 C540 C71 C561 C540 C561
14 12 12 43 6 0 27
C540 C75 C71 C1501 C540 C1501
15 22 30 40 6 2 34
C540 C540 C73 C1501 C540 C1501
16 16 11 44 2 0 22
C540 C1501 C71 C561 C540 C1501
17 14 10 43 2 0 27
C540 C540 C71 C1501 C540 C1501
18 17 21 41 10 2 39
C540 C540 C71 C561 C540 C1501
19 37 53 42 13 4 44
C540 C540 C1019 C561 C540 C1502
20 48 54 44 10 3 37
C540 C540 C71 C561 C540 C1501
21 18 24 42 10 2 37
C540 C540 C71 C561 C540 C561
22 29 39 39 13 3 40
C540 C540 C24 C561 C540 C540
23 33 42 41 12 3 39
C540 C540 C71 C561 C540 C1501
24 45 29 45 6 1 38
C540 C540 C71 C1501 C540 C1501
25 20 22 45 10 2 40
C540 C540 C24 C561 C540 C540
26 33 40 43 9 4 39
C540 C540 C71 C561 C540 C1501
27 44 28 45 3 0 19
C75 C1501 C71 C1501 C540 C1501
28 15 21 44 10 2 39
C540 C540 C71 C561 C540 C561

Mar 2021
Date PM-10  PM-2.5  O3  CO  SO2  NO2 
01 31 46 42 13 3 45
C540 C540 C43 C561 C540 C561
02 43 58 44 13 3 49
C540 C540 C601 C561 C540 C1502
03 48 52 48 12 4 39
C540 C540 C71 C561 C540 C1501
04 37 43 49 10 2 48
C540 C540 C44 C561 C540 C561
05 47 55 47 16 3 49
C540 C540 C1019 C561 C540 C1502
06 41 53 51 14 3 39
C540 C540 C71 C561 C540 C1502
07 34 44 50 6 1 34
C540 C540 C298 C561 C540 C540
08 47 33 54 6 1 43
C561 C1501 C24 C1501 C540 C1501
09 37 25 45 5 1 35
C601 C1501 C71 C1501 C540 C1502
10 22 23 45 5 1 36
C24 C24 C71 C1501 C540 C1501
11 8 13 44 5 0 33
C75 C1501 C1019 C1501 C540 C1501
12 7 16 43 4 0 32
C540 C1501 C1019 C1501 C540 C1501
13 14 26 43 8 1 36
C540 C540 C71 C1501 C540 C561
14 22 42 44 6 1 33
C540 C540 C71 C1501 C540 C1502
15 36 27 48 5 1 35
C540 C540 C71 C1501 C540 C1502
16 29 29 46 6 1 31
C540 C540 C71 C1501 C540 C1502
17 24 30 46 7 2 39
C540 C540 C75 C561 C540 C561
18 29 39 48 10 2 44
C561 C540 C75 C561 C540 C540
19 29 35 43 10 3 39
C540 C540 C24 C561 C540 C1501
20 27 18 49 3 1 18
C298 C298 C71 C1501 C540 C1502
21 16 14 48 3 0 7
C561 C540 C71 C561 C540 C561
22 17 18 46 4 1 30
C540 C540 C71 C1501 C540 C561
23 26 17 42 2 1 15
C540 C540 C71 C561 C540 C1501
24 16 14 45 3 1 21
C540 C540 C44 C1501 C540 C1502
25 31 25 54 4 1 33
C298 C1501 C71 C1501 C540 C1501
26 10 12 44 4 1 36
C540 C1501 C602 C1501 C540 C1501
27 18 23 44 10 1 36
C540 C540 C71 C561 C540 C561
28 28 45 48 9 2 40
C540 C540 C71 C561 C540 C561
29 46 44 49 6 3 34
C24 C540 C71 C561 C540 C540
30 56 39 49 5 1 20
C540 C540 C71 C561 C540 C1501
31 31 34 54 11 2 46
C540 C540 C602 C561 C540 C561

Apr 2021
Date PM-10  PM-2.5  O3  CO  SO2  NO2 
01 43 47 51 11 3 43
C561 C540 C602 C561 C540 C1502
02 48 53 67 12 3 49
C540 C540 C75 C561 C540 C561
03 38 47 64 8 5 41
C540 C540 C602 C561 C540 C1502
04 25 33 64 7 1 36
C540 C540 C75 C561 C540 C561
05 60 34 47 8 3 42
C602 C602 C75 C561 C540 C1502
06 56 45 67 6 2 43
C540 C540 C24 C1501 C540 C561
07 37 37 51 6 2 37
C540 C540 C73 C561 C540 C1501
08 35 28 51 4 2 36
C540 C540 C602 C1501 C540 C1501
09 45 44 54 11 2 46
C540 C540 C73 C561 C540 C561
10 43 52 64 8 2 39
C540 C540 C71 C561 C540 C561
11 25 32 54 5 2 34
C540 C540 C43 C1501 C540 C540
12 55 46 50 7 2 43
C540 C540 C44 C1501 C540 C561
13 63 51 67 5 1 38
C540 C540 C43 C1501 C540 C1501
14 50 40 71 4 1 33
C75 C75 C602 C1501 C540 C1501
15 24 23 51 4 1 27
C1019 C44 C602 C1501 C540 C1501
16 25 25 49 5 1 35
C561 C1501 C44 C1501 C540 C1502
17 16 15 44 3 2 11
C540 C1501 C602 C1501 C540 C1501
18 22 24 54 9 1 38
C540 C540 C602 C561 C540 C540
19 29 33 54 8 3 38
C540 C540 C71 C561 C540 C1502
20 84 66 77 2 1 38
C540 C75 C602 C561 C540 C1502
21 59 43 74 2 1 27
C561 C1501 C24 C561 C540 C1501
22 29 28 58 3 1 36
C602 C298 C602 C561 C540 C1501
23 37 36 42 4 1 41
C602 C602 C298 C1501 C540 C1501

PLEASE NOTE: This data has not been verified by the Clark County Department of Air Quality 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 Clark County Department of Air Quality 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.