Air Quality
Excellent
No health implications.
17
PM2.5
22
PM10
126
O3
0.3
CO
6
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Jul
68
Good
Thu
23 Jul
80
Good
Fri
24 Jul
74
Good
Sat
25 Jul
72
Good
Sun
26 Jul
65
Good
Mon
27 Jul
67
Good
Tue
28 Jul
50
Excellent
Air quality in the last 12 months (Wonju)
|
2026/06
|
49
|
50
|
69
|
65
|
37
|
58
|
47
|
40
|
39
|
35
|
35
|
35
|
40
|
39
|
37
|
41
|
38
|
31
|
37
|
32
|
23
|
26
|
26
|
33
|
139
|
50
|
39
|
41
|
41
|
41
|
|
|
2026/05
|
35
|
64
|
36
|
36
|
41
|
66
|
41
|
35
|
47
|
77
|
59
|
51
|
34
|
198
|
76
|
30
|
34
|
37
|
33
|
31
|
187
|
107
|
47
|
24
|
97
|
171
|
75
|
54
|
41
|
40
|
65
|
|
2026/04
|
43
|
47
|
140
|
88
|
73
|
66
|
54
|
52
|
73
|
57
|
53
|
50
|
67
|
46
|
47
|
53
|
40
|
47
|
248
|
105
|
29
|
47
|
64
|
65
|
51
|
54
|
68
|
58
|
48
|
42
|
|
|
2026/03
|
59
|
30
|
64
|
71
|
66
|
63
|
65
|
46
|
47
|
34
|
49
|
130
|
416
|
122
|
75
|
66
|
67
|
120
|
150
|
89
|
99
|
106
|
74
|
76
|
65
|
52
|
51
|
38
|
38
|
32
|
54
|
|
2026/02
|
101
|
68
|
77
|
66
|
50
|
75
|
65
|
57
|
87
|
136
|
94
|
80
|
63
|
102
|
65
|
46
|
84
|
68
|
54
|
54
|
287
|
284
|
141
|
69
|
125
|
82
|
72
|
46
|
|||
|
2026/01
|
65
|
70
|
79
|
49
|
37
|
31
|
31
|
46
|
43
|
66
|
51
|
42
|
57
|
135
|
79
|
78
|
94
|
79
|
46
|
57
|
60
|
69
|
68
|
82
|
402
|
196
|
137
|
127
|
108
|
104
|
110
|
|
2025/12
|
77
|
58
|
61
|
61
|
51
|
43
|
47
|
48
|
49
|
96
|
81
|
105
|
78
|
59
|
64
|
67
|
45
|
48
|
59
|
48
|
41
|
87
|
69
|
62
|
35
|
54
|
45
|
58
|
45
|
64
|
56
|
|
2025/11
|
54
|
59
|
47
|
35
|
35
|
17
|
81
|
77
|
73
|
52
|
48
|
59
|
55
|
50
|
52
|
60
|
41
|
51
|
44
|
74
|
54
|
53
|
85
|
88
|
50
|
217
|
76
|
64
|
55
|
117
|
|
|
2025/10
|
23
|
15
|
16
|
24
|
67
|
20
|
13
|
12
|
11
|
11
|
10
|
24
|
28
|
22
|
32
|
25
|
20
|
25
|
49
|
14
|
15
|
17
|
14
|
15
|
31
|
48
|
41
|
46
|
48
|
63
|
60
|
|
2025/09
|
21
|
55
|
59
|
40
|
60
|
72
|
52
|
41
|
32
|
28
|
18
|
39
|
35
|
34
|
159
|
54
|
20
|
11
|
12
|
13
|
10
|
13
|
19
|
26
|
29
|
35
|
33
|
33
|
43
|
41
|
|
|
2025/08
|
35
|
30
|
30
|
23
|
28
|
34
|
31
|
20
|
18
|
23
|
37
|
25
|
30
|
26
|
30
|
19
|
21
|
18
|
19
|
114
|
24
|
33
|
15
|
17
|
19
|
16
|
41
|
30
|
14
|
17
|
25
|
|
2025/07
|
19
|
17
|
22
|
22
|
17
|
22
|
18
|
30
|
23
|
27
|
19
|
27
|
30
|
29
|
43
|
47
|
37
|
30
|
83
|
23
|
24
|
16
|
21
|
20
|
23
|
15
|
18
|
19
|
30
|
26
|
41
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution