Processed on 2024-02-29 17:11:31 PST.
Disclaimer: Data presented here come from a variety of sources
and do not represent official EPA measurements. Please visit AirNow for official
measurements.
The following tables summarize the cumulative number of days air
quality monitors spent in each AQI category during wildfire season.
The ‘Old’ table and barplot are calculated using the 2023
PM2.5 NAAQS while the ‘New’ table and barplot are calculated
using the 2024 PM2.5 NAAQS.
2012
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
18
|
5
|
6
|
5
|
1
|
1
|
86
|
|
Leavenworth
|
94
|
15
|
4
|
9
|
0
|
0
|
0
|
|
Twisp
|
97
|
12
|
4
|
5
|
0
|
0
|
4
|
|
Winthrop
|
99
|
14
|
7
|
2
|
0
|
0
|
0
|
|
Omak
|
102
|
18
|
1
|
1
|
0
|
0
|
0
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
13
|
10
|
6
|
5
|
1
|
1
|
86
|
|
Leavenworth
|
84
|
25
|
4
|
9
|
0
|
0
|
0
|
|
Twisp
|
81
|
28
|
4
|
5
|
0
|
0
|
4
|
|
Winthrop
|
88
|
25
|
6
|
3
|
0
|
0
|
0
|
|
Omak
|
87
|
33
|
1
|
1
|
0
|
0
|
0
|
2013
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
49
|
6
|
0
|
0
|
0
|
0
|
68
|
|
Leavenworth
|
108
|
11
|
0
|
0
|
0
|
0
|
4
|
|
Twisp
|
112
|
9
|
0
|
0
|
0
|
0
|
2
|
|
Winthrop
|
111
|
7
|
0
|
0
|
0
|
0
|
5
|
|
Omak
|
65
|
17
|
0
|
0
|
0
|
0
|
41
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
45
|
10
|
0
|
0
|
0
|
0
|
68
|
|
Leavenworth
|
94
|
25
|
0
|
0
|
0
|
0
|
4
|
|
Twisp
|
97
|
24
|
0
|
0
|
0
|
0
|
2
|
|
Winthrop
|
96
|
22
|
0
|
0
|
0
|
0
|
5
|
|
Omak
|
56
|
26
|
0
|
0
|
0
|
0
|
41
|
2014
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
90
|
19
|
1
|
2
|
0
|
0
|
10
|
|
Leavenworth
|
74
|
25
|
6
|
0
|
0
|
0
|
17
|
|
Twisp
|
93
|
16
|
2
|
2
|
0
|
0
|
9
|
|
Winthrop
|
78
|
12
|
1
|
0
|
0
|
0
|
31
|
|
Omak
|
49
|
17
|
0
|
0
|
0
|
0
|
56
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
83
|
26
|
1
|
2
|
0
|
0
|
10
|
|
Leavenworth
|
66
|
32
|
7
|
0
|
0
|
0
|
17
|
|
Twisp
|
76
|
33
|
2
|
2
|
0
|
0
|
9
|
|
Winthrop
|
68
|
22
|
1
|
0
|
0
|
0
|
31
|
|
Omak
|
39
|
27
|
0
|
0
|
0
|
0
|
56
|
2015
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
90
|
7
|
1
|
0
|
0
|
0
|
24
|
|
Leavenworth
|
102
|
17
|
3
|
0
|
0
|
0
|
0
|
|
Twisp
|
77
|
26
|
1
|
8
|
0
|
0
|
10
|
|
Winthrop
|
53
|
10
|
0
|
0
|
0
|
0
|
59
|
|
Omak
|
68
|
31
|
5
|
4
|
2
|
5
|
7
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
84
|
13
|
1
|
0
|
0
|
0
|
24
|
|
Leavenworth
|
92
|
27
|
3
|
0
|
0
|
0
|
0
|
|
Twisp
|
63
|
40
|
1
|
5
|
3
|
0
|
10
|
|
Winthrop
|
41
|
22
|
0
|
0
|
0
|
0
|
59
|
|
Omak
|
55
|
44
|
5
|
4
|
1
|
6
|
7
|
2016
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
81
|
5
|
0
|
0
|
0
|
0
|
36
|
|
Leavenworth
|
103
|
3
|
0
|
0
|
0
|
0
|
16
|
|
Twisp
|
121
|
1
|
0
|
0
|
0
|
0
|
0
|
|
Winthrop
|
98
|
1
|
0
|
0
|
0
|
0
|
23
|
|
Omak
|
51
|
6
|
0
|
0
|
0
|
0
|
65
|
|
Chelan
|
55
|
0
|
0
|
0
|
0
|
0
|
67
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
78
|
8
|
0
|
0
|
0
|
0
|
36
|
|
Leavenworth
|
100
|
6
|
0
|
0
|
0
|
0
|
16
|
|
Twisp
|
116
|
6
|
0
|
0
|
0
|
0
|
0
|
|
Winthrop
|
95
|
4
|
0
|
0
|
0
|
0
|
23
|
|
Omak
|
44
|
13
|
0
|
0
|
0
|
0
|
65
|
|
Chelan
|
55
|
0
|
0
|
0
|
0
|
0
|
67
|
2017
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
83
|
18
|
9
|
9
|
3
|
0
|
0
|
|
Leavenworth
|
77
|
14
|
1
|
1
|
0
|
0
|
29
|
|
Twisp
|
79
|
27
|
4
|
12
|
0
|
0
|
0
|
|
Winthrop
|
82
|
25
|
4
|
11
|
0
|
0
|
0
|
|
Omak
|
75
|
26
|
4
|
10
|
0
|
0
|
7
|
|
Chelan
|
85
|
9
|
2
|
1
|
1
|
0
|
24
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
73
|
28
|
9
|
9
|
3
|
0
|
0
|
|
Leavenworth
|
67
|
24
|
1
|
1
|
0
|
0
|
29
|
|
Twisp
|
69
|
37
|
4
|
12
|
0
|
0
|
0
|
|
Winthrop
|
68
|
38
|
5
|
11
|
0
|
0
|
0
|
|
Omak
|
65
|
36
|
3
|
11
|
0
|
0
|
7
|
|
Chelan
|
80
|
14
|
2
|
0
|
2
|
0
|
24
|
2018
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
83
|
25
|
3
|
7
|
3
|
1
|
0
|
|
Leavenworth
|
82
|
27
|
1
|
9
|
0
|
0
|
3
|
|
Twisp
|
55
|
20
|
6
|
23
|
1
|
0
|
17
|
|
Winthrop
|
75
|
28
|
6
|
12
|
1
|
0
|
0
|
|
Omak
|
57
|
20
|
3
|
12
|
1
|
1
|
28
|
|
Chelan
|
77
|
19
|
8
|
10
|
4
|
1
|
3
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
74
|
34
|
3
|
6
|
4
|
1
|
0
|
|
Leavenworth
|
74
|
35
|
1
|
7
|
2
|
0
|
3
|
|
Twisp
|
47
|
27
|
7
|
21
|
3
|
0
|
17
|
|
Winthrop
|
67
|
36
|
6
|
11
|
2
|
0
|
0
|
|
Omak
|
48
|
29
|
3
|
11
|
1
|
2
|
28
|
|
Chelan
|
70
|
26
|
8
|
8
|
5
|
2
|
3
|
2019
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
117
|
5
|
0
|
0
|
0
|
0
|
0
|
|
Leavenworth
|
104
|
8
|
0
|
0
|
0
|
0
|
10
|
|
Twisp
|
107
|
0
|
0
|
0
|
0
|
0
|
15
|
|
Winthrop
|
120
|
0
|
0
|
0
|
0
|
0
|
2
|
|
Omak
|
111
|
10
|
0
|
0
|
0
|
0
|
1
|
|
Chelan
|
117
|
2
|
0
|
0
|
0
|
0
|
3
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
109
|
13
|
0
|
0
|
0
|
0
|
0
|
|
Leavenworth
|
100
|
12
|
0
|
0
|
0
|
0
|
10
|
|
Twisp
|
98
|
9
|
0
|
0
|
0
|
0
|
15
|
|
Winthrop
|
114
|
6
|
0
|
0
|
0
|
0
|
2
|
|
Omak
|
102
|
19
|
0
|
0
|
0
|
0
|
1
|
|
Chelan
|
112
|
7
|
0
|
0
|
0
|
0
|
3
|
2020
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
98
|
6
|
1
|
6
|
2
|
2
|
7
|
|
Leavenworth
|
103
|
9
|
2
|
6
|
2
|
0
|
0
|
|
Twisp
|
104
|
9
|
2
|
5
|
2
|
0
|
0
|
|
Winthrop
|
105
|
7
|
2
|
6
|
2
|
0
|
0
|
|
Omak
|
88
|
19
|
1
|
5
|
4
|
2
|
3
|
|
Chelan
|
105
|
5
|
1
|
7
|
2
|
2
|
0
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
87
|
17
|
1
|
6
|
1
|
3
|
7
|
|
Leavenworth
|
93
|
19
|
2
|
6
|
2
|
0
|
0
|
|
Twisp
|
95
|
18
|
2
|
5
|
2
|
0
|
0
|
|
Winthrop
|
94
|
18
|
2
|
5
|
3
|
0
|
0
|
|
Omak
|
70
|
37
|
1
|
5
|
2
|
4
|
3
|
|
Chelan
|
99
|
11
|
1
|
6
|
2
|
3
|
0
|
2021
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
113
|
5
|
2
|
2
|
0
|
0
|
0
|
|
Leavenworth
|
88
|
7
|
1
|
3
|
0
|
0
|
23
|
|
Twisp
|
79
|
21
|
6
|
14
|
2
|
0
|
0
|
|
Winthrop
|
76
|
23
|
2
|
11
|
8
|
1
|
1
|
|
Omak
|
49
|
54
|
11
|
5
|
3
|
0
|
0
|
|
Chelan
|
109
|
8
|
3
|
2
|
0
|
0
|
0
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
107
|
11
|
2
|
2
|
0
|
0
|
0
|
|
Leavenworth
|
83
|
12
|
1
|
3
|
0
|
0
|
23
|
|
Twisp
|
64
|
36
|
6
|
12
|
4
|
0
|
0
|
|
Winthrop
|
61
|
38
|
2
|
8
|
10
|
2
|
1
|
|
Omak
|
31
|
72
|
11
|
5
|
3
|
0
|
0
|
|
Chelan
|
100
|
17
|
3
|
2
|
0
|
0
|
0
|
2022
Using Old (2023) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
77
|
24
|
8
|
13
|
0
|
0
|
0
|
|
Leavenworth
|
65
|
26
|
7
|
12
|
1
|
0
|
11
|
|
Twisp
|
81
|
31
|
2
|
0
|
1
|
0
|
7
|
|
Winthrop
|
89
|
32
|
0
|
0
|
1
|
0
|
0
|
|
Omak
|
80
|
34
|
2
|
0
|
0
|
0
|
6
|
|
Chelan
|
80
|
31
|
1
|
0
|
1
|
0
|
9
|
Using New (2024) PM2.5 NAAQS
|
|
Good
|
Moderate
|
USG
|
Unhealthy
|
Very Unhealthy
|
Hazardous
|
Missing
|
|
Wenatchee
|
73
|
28
|
8
|
13
|
0
|
0
|
0
|
|
Leavenworth
|
60
|
30
|
8
|
12
|
1
|
0
|
11
|
|
Twisp
|
73
|
39
|
2
|
0
|
1
|
0
|
7
|
|
Winthrop
|
78
|
43
|
0
|
0
|
1
|
0
|
0
|
|
Omak
|
59
|
55
|
2
|
0
|
0
|
0
|
6
|
|
Chelan
|
70
|
41
|
1
|
0
|
1
|
0
|
9
|
