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

  2020  


Maricopa County
Monitor
Ozone
PM10
PM2.5
Date
ppb
4/28/2020
74
4/29/2020
74
5/5/2020
72
5/6/2020
82
5/7/2020
81
5/8/2020
74
5/21/2020
71
5/26/2020
71
5/28/2020
73
6/1/2020
71
6/4/2020
71
6/11/2020
71
8/19/2020
94
8/24/2020
87
8/25/2020
87
8/26/2020
82
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
8/24/2020
77
8/26/2020
84
Date
µg/m3
10/26/2020
166
Date
µg/m3
-
Date
ppb
5/5/2020
72
5/6/2020
77
5/7/2020
79
5/21/2020
71
5/26/2020
71
5/29/2020
71
6/4/2020
75
8/18/2020
73
8/19/2020
86
8/24/2020
83
8/25/2020
84
8/26/2020
79
8/27/2020
74
8/28/2020
72
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/5/2020
71
5/7/2020
72
5/29/2020
73
6/4/2020
72
8/24/2020
73
8/25/2020
72
9/15/2020
71
Date
µg/m3
8/16/2020
215
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
1/1/2020
76.3
Date
ppb
4/29/2020
73
5/5/2020
71
5/6/2020
75
5/7/2020
77
7/27/2020
71
8/17/2020
74
8/18/2020
73
8/19/2020
71
8/24/2020
88
8/25/2020
85
8/26/2020
91
8/27/2020
74
9/5/2020
71
9/15/2020
72
9/18/2020
73
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
4/28/2020
78
4/29/2020
80
4/30/2020
71
5/4/2020
76
5/5/2020
83
5/6/2020
84
5/7/2020
78
5/8/2020
73
5/28/2020
71
5/29/2020
75
6/1/2020
75
6/3/2020
75
6/4/2020
72
6/11/2020
72
6/24/2020
73
7/29/2020
72
8/19/2020
89
8/24/2020
85
8/25/2020
88
8/26/2020
74
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/29/2020
73
8/18/2020
72
8/19/2020
92
8/24/2020
87
8/25/2020
84
8/26/2020
80
8/27/2020
72
8/28/2020
74
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/29/2020
76
8/19/2020
72
8/24/2020
83
8/25/2020
86
8/26/2020
77
Date
µg/m3
-
Date
µg/m3
1/1/2020
64.9
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/6/2020
77
5/7/2020
71
8/19/2020
78
8/24/2020
74
8/25/2020
73
8/26/2020
74
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
4/28/2020
72
4/29/2020
74
5/4/2020
72
5/5/2020
78
5/6/2020
80
5/7/2020
79
5/8/2020
71
5/28/2020
71
5/29/2020
77
6/1/2020
72
6/3/2020
71
6/4/2020
73
6/11/2020
71
7/31/2020
75
8/19/2020
90
8/24/2020
79
8/25/2020
81
8/26/2020
73
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
4/29/2020
74
5/4/2020
74
5/5/2020
76
5/6/2020
79
5/7/2020
77
5/29/2020
72
6/1/2020
74
7/28/2020
72
8/19/2020
93
8/23/2020
75
8/24/2020
86
8/25/2020
89
8/26/2020
81
8/27/2020
79
8/28/2020
72
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
4/29/2020
72
5/5/2020
72
5/6/2020
76
5/7/2020
78
5/29/2020
82
6/4/2020
79
7/27/2020
71
8/17/2020
72
8/18/2020
77
8/19/2020
94
8/24/2020
93
8/25/2020
90
8/26/2020
87
8/27/2020
75
8/28/2020
73
Date
µg/m3
-
Date
µg/m3
1/1/2020
51.4
Date
ppb
4/28/2020
72
4/29/2020
73
5/4/2020
71
5/5/2020
78
5/6/2020
80
5/7/2020
78
5/29/2020
77
6/4/2020
74
6/11/2020
71
7/31/2020
73
8/19/2020
96
8/24/2020
83
8/25/2020
86
8/26/2020
75
8/27/2020
72
Date
µg/m3
8/16/2020
168
Date
µg/m3
-
Date
ppb
5/29/2020
73
8/18/2020
72
8/19/2020
83
8/24/2020
87
8/25/2020
88
8/26/2020
79
9/15/2020
75
9/16/2020
75
9/18/2020
72
9/20/2020
71
Date
µg/m3
-
Date
µg/m3
1/1/2020
77.4
2/1/2020
39.2
Date
ppb
5/6/2020
74
5/7/2020
78
5/29/2020
72
6/4/2020
71
6/11/2020
71
7/31/2020
71
8/18/2020
71
8/19/2020
94
8/24/2020
86
8/25/2020
83
8/26/2020
83
8/27/2020
71
8/28/2020
76
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
4/28/2020
72
4/29/2020
73
5/5/2020
73
5/6/2020
80
5/7/2020
79
5/8/2020
71
5/29/2020
76
6/4/2020
73
8/19/2020
94
8/24/2020
84
8/25/2020
86
8/26/2020
79
8/27/2020
72
8/28/2020
72
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/6/2020
78
5/7/2020
75
5/29/2020
74
6/4/2020
75
7/31/2020
74
8/19/2020
92
8/25/2020
88
8/26/2020
79
8/27/2020
72
Date
µg/m3
8/16/2020
191
Date
µg/m3
-
Date
ppb
8/19/2020
75
8/24/2020
86
8/25/2020
85
8/26/2020
77
8/27/2020
71
Date
µg/m3
-
Date
µg/m3
1/1/2020
64.7
Date
ppb
4/29/2020
73
5/4/2020
71
5/5/2020
78
5/6/2020
79
5/7/2020
78
5/29/2020
78
6/4/2020
73
6/11/2020
72
7/31/2020
77
8/17/2020
72
8/18/2020
73
8/19/2020
102
8/24/2020
93
8/25/2020
91
8/26/2020
84
8/27/2020
76
8/28/2020
72
9/16/2020
72
Date
µg/m3
8/16/2020
192
Date
µg/m3
-
Date
ppb
5/7/2020
72
8/19/2020
75
8/24/2020
78
8/25/2020
81
8/26/2020
71
Date
µg/m3
8/16/2020
221
8/17/2020
159
Date
µg/m3
-
Date
ppb
4/29/2020
74
5/4/2020
72
5/5/2020
74
5/6/2020
77
5/7/2020
75
5/29/2020
74
6/1/2020
74
6/4/2020
71
8/19/2020
80
8/24/2020
75
8/25/2020
77
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
8/16/2020
199
8/17/2020
186
10/26/2020
226
Date
µg/m3
-
Date
ppb
5/7/2020
74
8/19/2020
81
8/24/2020
75
8/25/2020
81
8/26/2020
77
Date
µg/m3
8/16/2020
263
Date
µg/m3
-
Date
ppb
5/6/2020
71
5/7/2020
73
5/29/2020
76
8/19/2020
79
8/24/2020
89
8/25/2020
91
8/26/2020
81
8/27/2020
72
8/28/2020
71
9/15/2020
73
Date
µg/m3
1/1/2020
159
Date
µg/m3
1/1/2020
149.1
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-

Pima County
Monitor
Ozone
PM10
PM2.5
Date
ppb
8/19/2020
72
8/21/2020
71
8/23/2020
71
8/25/2020
76
8/27/2020
77
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/5/2020
72
6/11/2020
71
8/24/2020
72
8/25/2020
75
8/27/2020
77
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
8/25/2020
78
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
8/23/2020
72
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
6/29/2020
156
7/11/2020
170
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/5/2020
72
8/21/2020
71
8/23/2020
71
8/25/2020
72
8/27/2020
72
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/5/2020
71
8/25/2020
77
8/27/2020
71
Date
µg/m3
-
Date
µg/m3
-

Pinal County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
4/28/2020
71
5/5/2020
73
5/6/2020
75
5/7/2020
78
5/8/2020
71
5/28/2020
71
6/1/2020
72
6/3/2020
71
6/11/2020
73
7/29/2020
72
8/19/2020
83
8/23/2020
71
8/24/2020
81
8/25/2020
93
8/26/2020
75
8/27/2020
72
8/28/2020
74
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
8/11/2020
166
8/16/2020
200
Date
µg/m3
-
Date
ppb
5/7/2020
71
8/19/2020
79
8/24/2020
77
8/25/2020
81
8/26/2020
76
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
5/6/2020
208
5/26/2020
176
5/30/2020
186
6/3/2020
177
6/10/2020
213
6/13/2020
159
6/25/2020
176
6/26/2020
199
7/2/2020
200
7/15/2020
161
7/16/2020
220
7/22/2020
199
7/23/2020
158
7/25/2020
159
8/4/2020
209
8/14/2020
188
8/17/2020
217
8/25/2020
157
9/4/2020
170
9/12/2020
172
9/17/2020
190
9/18/2020
162
9/19/2020
168
9/24/2020
165
9/28/2020
246
9/29/2020
181
9/30/2020
281
10/1/2020
224
10/2/2020
199
10/4/2020
175
10/5/2020
192
10/6/2020
231
10/7/2020
253
10/8/2020
215
10/9/2020
168
10/12/2020
213
10/13/2020
245
10/14/2020
242
10/15/2020
252
10/16/2020
155
10/18/2020
248
10/19/2020
279
10/20/2020
240
10/21/2020
189
10/22/2020
205
10/28/2020
194
Date
µg/m3
5/6/2020
37.4
6/26/2020
41
7/2/2020
48
7/15/2020
36.7
7/16/2020
48.6
8/4/2020
39.2
8/17/2020
38.2
8/25/2020
39.3
8/26/2020
36.8
9/19/2020
43.7
9/30/2020
67.3
10/1/2020
47.3
10/6/2020
39
10/7/2020
43.6
10/9/2020
40
10/11/2020
47.7
10/12/2020
54.7
10/15/2020
44.2
10/18/2020
37.2
10/19/2020
40.6
Date
ppb
-
Date
µg/m3
8/17/2020
249
8/20/2020
156
10/26/2020
269
Date
µg/m3
-
Date
ppb
8/25/2020
79
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
5/4/2020
74
5/6/2020
75
5/7/2020
80
5/28/2020
72
6/11/2020
71
7/29/2020
71
7/30/2020
72
8/19/2020
85
8/20/2020
72
8/21/2020
77
8/23/2020
73
8/24/2020
80
8/25/2020
85
8/26/2020
77
8/27/2020
75
8/28/2020
79
9/21/2020
76
9/24/2020
71
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
8/19/2020
78
8/24/2020
72
8/25/2020
74
8/26/2020
71
Date
µg/m3
8/16/2020
170
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
8/11/2020
158
10/26/2020
181
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
-

Cochise County
Monitor
Ozone
PM10
PM2.5
Date
ppb
8/21/2020
72
8/23/2020
73
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
-

Gila 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
5/6/2020
77
5/7/2020
81
6/1/2020
72
8/18/2020
72
8/19/2020
87
8/21/2020
74
8/24/2020
87
8/25/2020
95
8/26/2020
74
8/27/2020
72
Date
µg/m3
-
Date
µg/m3
-

La Paz County
Monitor
Ozone
PM10
PM2.5
Date
ppb
5/7/2020
71
Date
µg/m3
8/17/2020
203
Date
µg/m3
-

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

Navajo County
Monitor
Ozone
PM10
PM2.5
Date
ppb
6/17/2020
81
Date
µg/m3
-
Date
µg/m3
-

Santa Cruz County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
-
Date
µg/m3
1/1/2020
83.2
1/5/2020
37

Yavapai County
Monitor
Ozone
PM10
PM2.5
Date
ppb
5/7/2020
76
Date
µg/m3
-
Date
µg/m3
-

Yuma County
Monitor
Ozone
PM10
PM2.5
Date
ppb
-
Date
µg/m3
10/25/2020
179
10/26/2020
441
Date
µg/m3
-