Air Quality Year-to-Date Report

Updated On: July 3, 2020 4:30 AM
This report displays the daily Ozone Air Quality Index (AQI) for 2020. Each daily value represents the highest monitor for Phoenix. The graph below displays the daily value (blue), the 15-year average (black), and the current EPA standard (orange). All data are preliminary.

Good Days
Moderate Days
Exceedance days
Number of Days
96
71
17

Daily Maximum Ozone Air Quality Index (AQI) [Switch to concentration]

Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1
35
40
44
74
77
115
42
2
36
43
41
50
54
84
48
3
38
45
42
58
80
115
4
39
39
44
71
119
129
5
37
40
45
48
143
67
6
40
40
50
48
147
49
7
39
44
47
46
136
58
8
41
47
43
40
112
74
9
39
41
45
58
84
46
10
39
38
36
74
97
87
11
40
39
22
45
80
108
12
43
41
32
47
64
84
13
44
43
34
46
58
54
14
41
44
40
51
97
77
15
41
49
44
77
97
64
16
38
67
48
64
80
74
17
42
74
41
61
61
64
18
45
61
44
50
61
71
19
44
71
49
64
48
90
20
38
49
50
77
90
71
21
31
38
58
64
101
61
22
35
35
54
80
93
80
23
36
43
51
77
64
90
24
37
46
71
90
77
108
25
39
47
64
61
74
74
26
47
42
46
87
101
71
27
41
39
49
74
90
67
28
43
40
49
126
108
44
29
42
47
64
133
140
47
30
41
67
101
71
45
31
44
54
87