AQ Exceedance

This report displays the number of days a monitor exceeded the federal health standard for the given year. Click the monitor to view the dates of each exceedance and the associated concentration.

Previous Day

  2021  


Maricopa County
Monitor
Ozone
PM10
PM2.5
Date
ppb
5/5/2021
72
5/6/2021
76
7/8/2021
71
7/19/2021
71
7/22/2021
75
7/28/2021
71
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
6/11/2021
71
6/29/2021
71
7/30/2021
72
8/3/2021
78
8/4/2021
73
Date
µg/m3
7/12/2021
163
10/11/2021
259
Date
µg/m3
-
Date
ppb
5/13/2021
71
6/11/2021
85
6/15/2021
91
7/21/2021
73
7/22/2021
74
7/28/2021
71
8/4/2021
74
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
6/11/2021
74
6/12/2021
73
6/15/2021
91
6/29/2021
80
7/1/2021
82
7/17/2021
75
7/19/2021
73
7/22/2021
71
7/28/2021
81
7/31/2021
71
8/2/2021
79
8/3/2021
84
8/4/2021
78
8/5/2021
74
8/25/2021
73
8/27/2021
75
8/28/2021
71
9/3/2021
75
9/4/2021
78
9/5/2021
71
Date
µg/m3
10/12/2021
170
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
10/12/2021
163
Date
µg/m3
1/1/2021
53.5
Date
ppb
6/11/2021
77
6/12/2021
71
6/15/2021
93
6/28/2021
75
7/21/2021
78
7/28/2021
72
7/30/2021
73
8/2/2021
73
8/3/2021
76
8/4/2021
82
8/26/2021
73
8/27/2021
74
Date
µg/m3
7/10/2021
170
10/11/2021
155
Date
µg/m3
-
Date
ppb
5/6/2021
75
5/24/2021
76
6/11/2021
78
6/12/2021
80
6/15/2021
89
6/16/2021
76
6/24/2021
72
6/26/2021
73
6/29/2021
72
7/1/2021
78
7/4/2021
72
7/8/2021
77
7/9/2021
71
7/13/2021
71
7/17/2021
77
7/19/2021
78
7/20/2021
71
7/22/2021
82
7/27/2021
73
7/28/2021
87
7/31/2021
80
8/1/2021
73
8/2/2021
73
8/3/2021
76
8/4/2021
77
8/5/2021
77
8/6/2021
73
8/26/2021
76
9/3/2021
74
9/4/2021
77
9/5/2021
72
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
10/12/2021
207
Date
µg/m3
-
Date
ppb
5/24/2021
74
6/11/2021
82
6/15/2021
98
6/16/2021
74
7/1/2021
73
7/8/2021
73
7/19/2021
73
7/21/2021
72
7/22/2021
78
7/28/2021
76
8/5/2021
73
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/24/2021
72
6/11/2021
79
6/12/2021
75
6/15/2021
97
6/28/2021
72
6/29/2021
72
7/1/2021
71
7/19/2021
74
7/21/2021
76
7/28/2021
75
7/30/2021
73
8/2/2021
73
8/3/2021
73
8/4/2021
80
8/26/2021
74
8/27/2021
75
8/29/2021
75
9/4/2021
79
Date
µg/m3
7/10/2021
173
Date
µg/m3
1/1/2021
51.2
Date
ppb
-
Date
µg/m3
3/3/2021
208
10/12/2021
219
Date
µg/m3
-
Date
ppb
6/11/2021
74
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/6/2021
73
5/24/2021
73
6/11/2021
76
6/12/2021
74
6/15/2021
88
6/16/2021
73
7/1/2021
75
7/8/2021
76
7/17/2021
74
7/19/2021
76
7/22/2021
80
7/27/2021
71
7/28/2021
84
7/31/2021
74
8/2/2021
73
8/3/2021
75
8/4/2021
76
8/5/2021
71
8/26/2021
74
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/5/2021
72
5/6/2021
71
5/12/2021
71
5/24/2021
75
6/11/2021
72
6/12/2021
81
6/15/2021
85
6/26/2021
72
6/29/2021
76
7/1/2021
83
7/2/2021
72
7/4/2021
73
7/14/2021
71
7/17/2021
80
7/19/2021
73
7/20/2021
71
7/22/2021
76
7/27/2021
73
7/28/2021
83
7/31/2021
80
8/2/2021
77
8/3/2021
83
8/4/2021
77
8/5/2021
75
8/6/2021
72
8/24/2021
74
8/26/2021
71
8/27/2021
76
8/28/2021
82
9/3/2021
79
9/4/2021
80
9/5/2021
76
Date
µg/m3
7/9/2021
199
10/12/2021
170
Date
µg/m3
1/1/2021
72.3
Date
ppb
5/12/2021
72
5/24/2021
76
5/27/2021
72
5/28/2021
71
6/9/2021
71
6/11/2021
82
6/12/2021
76
6/15/2021
108
6/16/2021
72
6/29/2021
73
7/1/2021
78
7/8/2021
75
7/13/2021
73
7/17/2021
71
7/19/2021
77
7/20/2021
80
7/21/2021
74
7/22/2021
74
7/27/2021
79
7/28/2021
85
7/31/2021
71
8/2/2021
75
8/3/2021
75
8/4/2021
81
8/5/2021
73
8/25/2021
81
8/26/2021
72
8/27/2021
73
8/28/2021
76
9/4/2021
81
9/5/2021
77
Date
µg/m3
-
Date
µg/m3
1/1/2021
61.2
Date
ppb
5/6/2021
73
5/24/2021
73
6/11/2021
77
6/12/2021
74
6/15/2021
90
6/16/2021
72
7/1/2021
77
7/8/2021
77
7/17/2021
73
7/19/2021
76
7/20/2021
73
7/22/2021
78
7/27/2021
72
7/28/2021
83
7/31/2021
72
8/2/2021
72
8/3/2021
73
8/4/2021
75
8/5/2021
74
8/26/2021
73
9/3/2021
71
9/4/2021
74
Date
µg/m3
10/12/2021
174
Date
µg/m3
-
Date
ppb
5/12/2021
72
5/24/2021
79
5/28/2021
71
6/11/2021
82
6/12/2021
78
6/15/2021
100
6/16/2021
75
6/28/2021
74
6/29/2021
82
7/1/2021
83
7/8/2021
76
7/13/2021
71
7/17/2021
74
7/19/2021
77
7/20/2021
78
7/21/2021
72
7/22/2021
72
8/2/2021
78
8/3/2021
79
8/4/2021
79
8/5/2021
71
8/25/2021
78
8/26/2021
76
8/27/2021
81
8/28/2021
72
8/29/2021
72
8/30/2021
72
9/3/2021
71
9/4/2021
80
9/5/2021
72
Date
µg/m3
-
Date
µg/m3
1/1/2021
104.6
Date
ppb
5/5/2021
72
5/6/2021
78
5/12/2021
74
5/13/2021
72
5/24/2021
73
5/26/2021
71
5/27/2021
74
5/28/2021
72
6/11/2021
86
6/12/2021
73
6/15/2021
107
6/18/2021
72
7/1/2021
71
7/19/2021
74
7/20/2021
72
7/21/2021
74
7/22/2021
77
7/27/2021
80
7/28/2021
79
8/2/2021
71
8/4/2021
76
8/5/2021
71
8/17/2021
72
9/4/2021
71
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/6/2021
75
5/24/2021
74
6/11/2021
78
6/12/2021
74
6/15/2021
92
6/16/2021
76
7/1/2021
75
7/8/2021
78
7/17/2021
73
7/19/2021
77
7/28/2021
83
7/31/2021
72
8/3/2021
72
8/4/2021
75
8/5/2021
76
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/6/2021
71
6/11/2021
76
6/12/2021
71
6/15/2021
89
6/16/2021
72
7/1/2021
71
7/8/2021
71
7/20/2021
73
7/22/2021
74
7/28/2021
77
8/5/2021
71
Date
µg/m3
10/12/2021
156
Date
µg/m3
-
Date
ppb
6/11/2021
72
6/15/2021
80
6/29/2021
76
7/1/2021
73
8/2/2021
74
8/3/2021
74
9/3/2021
72
Date
µg/m3
-
Date
µg/m3
1/1/2021
74.5
Date
ppb
5/24/2021
71
6/11/2021
75
6/12/2021
73
6/15/2021
96
6/16/2021
74
6/29/2021
74
7/1/2021
80
7/2/2021
71
7/8/2021
79
7/13/2021
71
7/17/2021
75
7/19/2021
78
7/20/2021
78
7/21/2021
72
7/22/2021
80
7/27/2021
75
7/28/2021
85
7/31/2021
75
8/2/2021
79
8/3/2021
80
8/4/2021
81
8/5/2021
82
8/26/2021
76
8/27/2021
75
8/28/2021
80
9/3/2021
76
9/4/2021
80
9/5/2021
77
Date
µg/m3
7/9/2021
188
10/12/2021
180
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
7/9/2021
182
8/28/2021
207
10/12/2021
162
Date
µg/m3
-
Date
ppb
6/11/2021
73
6/12/2021
77
6/15/2021
83
6/29/2021
78
7/1/2021
86
7/17/2021
78
7/22/2021
74
7/28/2021
79
7/31/2021
75
8/2/2021
73
8/3/2021
79
8/4/2021
76
8/5/2021
73
8/24/2021
73
8/27/2021
74
8/28/2021
78
9/3/2021
80
9/4/2021
79
9/5/2021
74
Date
µg/m3
7/9/2021
208
10/12/2021
158
Date
µg/m3
1/1/2021
47.1
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
1/1/2021
113.4
Date
ppb
-
Date
µg/m3
3/3/2021
177
10/12/2021
166
Date
µg/m3
-
Date
ppb
5/24/2021
71
7/1/2021
81
7/17/2021
73
7/28/2021
76
7/31/2021
73
8/2/2021
74
8/3/2021
72
9/3/2021
72
Date
µg/m3
7/9/2021
166
10/11/2021
160
10/12/2021
181
Date
µg/m3
-
Date
ppb
6/15/2021
76
6/29/2021
78
7/1/2021
74
7/8/2021
72
7/19/2021
72
7/20/2021
73
7/28/2021
76
8/2/2021
77
8/3/2021
81
8/4/2021
78
9/4/2021
78
Date
µg/m3
1/1/2021
250
Date
µg/m3
1/1/2021
222.4
1/2/2021
36.4
Date
ppb
-
Date
µg/m3
7/10/2021
248
Date
µg/m3
-

Pima County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
10/12/2021
182
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
1/19/2021
209
1/20/2021
198
3/2/2021
169
3/3/2021
159
3/6/2021
178
4/1/2021
177
4/21/2021
234
6/28/2021
254
9/5/2021
208
10/12/2021
249
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-

Pinal County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
10/12/2021
179
Date
µg/m3
-
Date
ppb
5/24/2021
72
6/15/2021
76
6/16/2021
74
6/29/2021
71
7/1/2021
71
7/17/2021
73
7/22/2021
76
7/28/2021
72
7/31/2021
76
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
10/11/2021
175
10/12/2021
288
Date
µg/m3
-
Date
ppb
7/1/2021
71
7/8/2021
73
7/28/2021
71
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
3/3/2021
171
10/12/2021
264
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
10/12/2021
242
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
3/3/2021
170
4/21/2021
233
10/12/2021
219
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
4/30/2021
166
5/25/2021
185
5/27/2021
172
6/12/2021
181
6/15/2021
172
6/18/2021
155
6/19/2021
174
6/22/2021
163
6/28/2021
192
7/10/2021
217
8/26/2021
186
8/28/2021
219
9/9/2021
198
9/16/2021
157
10/11/2021
184
10/12/2021
222
10/21/2021
157
10/22/2021
192
10/28/2021
170
11/2/2021
200
11/3/2021
204
11/5/2021
166
11/8/2021
180
Date
µg/m3
5/31/2021
41.3
6/19/2021
37.7
7/1/2021
40.8
8/26/2021
36.7
11/3/2021
39.8
11/7/2021
39.4
11/9/2021
36.2
Date
ppb
-
Date
µg/m3
3/3/2021
184
10/12/2021
217
Date
µg/m3
-
Date
ppb
5/23/2021
72
6/28/2021
71
7/8/2021
77
7/13/2021
77
7/17/2021
71
7/20/2021
73
7/21/2021
71
Date
µg/m3
10/12/2021
180
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
3/3/2021
169
4/21/2021
206
7/10/2021
350
10/12/2021
263
Date
µg/m3
-
Date
ppb
5/24/2021
73
6/15/2021
75
6/29/2021
73
7/13/2021
71
7/17/2021
72
7/19/2021
71
7/22/2021
74
7/28/2021
71
7/31/2021
74
8/1/2021
72
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
10/12/2021
298
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
3/3/2021
225
4/21/2021
202
10/12/2021
235
Date
µg/m3
-

Coconino
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-

Cochise County
Monitor
Ozone
PM10
PM2.5
Date
ppb
7/23/2021
72
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
1/19/2021
161
Date
µg/m3
-

Gila County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
10/12/2021
313
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
10/12/2021
223
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/24/2021
72
6/11/2021
75
6/15/2021
90
6/16/2021
77
6/17/2021
71
6/18/2021
71
7/21/2021
71
7/22/2021
81
7/31/2021
72
8/5/2021
73
Date
µg/m3
-
Date
µg/m3
-

La Paz County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
7/11/2021
328
Date
µg/m3
7/11/2021
48.9

Mohave County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
7/11/2021
265
Date
µg/m3
-

Navajo County
Monitor
Ozone
PM10
PM2.5
Date
ppb
7/21/2021
71
Date
µg/m3
-
Date
µg/m3
-

Santa Cruz County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
1/1/2021
84.5

Yavapai County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-

Yuma County
Monitor
Ozone
PM10
PM2.5
Date
ppb
6/11/2021
74
6/12/2021
82
6/17/2021
73
8/3/2021
72
Date
µg/m3
10/11/2021
294
11/25/2021
199
Date
µg/m3
10/6/2021
45.2
10/11/2021
37.4