Air Quality
Excellent
No health implications.
11
PM2.5
11
PM10
26
O3
0.5
CO
4
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Jan
51
Good
Tue
20 Jan
53
Good
Wed
21 Jan
94
Good
Thu
22 Jan
96
Good
Fri
23 Jan
150
Light
Sat
24 Jan
159
Moderate
Sun
25 Jan
42
Excellent
Yeji Air quality rank
Air quality in the last 12 months (Yeji)
|
2025/11
|
70
|
70
|
69
|
63
|
81
|
67
|
18
|
55
|
84
|
79
|
49
|
44
|
60
|
85
|
99
|
87
|
40
|
34
|
34
|
42
|
62
|
64
|
69
|
104
|
87
|
66
|
193
|
94
|
66
|
71
|
|
|
2025/10
|
23
|
23
|
16
|
34
|
53
|
57
|
56
|
68
|
51
|
48
|
36
|
46
|
20
|
44
|
46
|
31
|
25
|
16
|
23
|
26
|
26
|
35
|
37
|
45
|
59
|
59
|
65
|
72
|
75
|
97
|
85
|
|
2025/09
|
21
|
25
|
32
|
37
|
32
|
38
|
49
|
40
|
27
|
32
|
23
|
15
|
19
|
20
|
17
|
31
|
22
|
15
|
17
|
17
|
39
|
37
|
42
|
13
|
21
|
24
|
26
|
29
|
29
|
17
|
|
|
2025/08
|
18
|
19
|
23
|
28
|
34
|
25
|
22
|
21
|
22
|
15
|
9
|
17
|
22
|
31
|
21
|
21
|
25
|
30
|
27
|
21
|
18
|
21
|
18
|
25
|
26
|
18
|
29
|
27
|
31
|
26
|
19
|
|
2025/07
|
18
|
17
|
19
|
25
|
33
|
33
|
39
|
30
|
16
|
31
|
42
|
23
|
21
|
29
|
29
|
27
|
27
|
34
|
41
|
23
|
22
|
16
|
18
|
22
|
26
|
25
|
25
|
21
|
24
|
25
|
22
|
|
2025/06
|
19
|
16
|
40
|
52
|
39
|
33
|
27
|
20
|
17
|
25
|
36
|
38
|
36
|
24
|
31
|
51
|
44
|
16
|
10
|
15
|
14
|
15
|
26
|
35
|
40
|
32
|
16
|
15
|
11
|
18
|
|
|
2025/05
|
57
|
62
|
57
|
52
|
47
|
119
|
110
|
50
|
41
|
33
|
40
|
40
|
45
|
61
|
67
|
41
|
86
|
90
|
70
|
49
|
33
|
44
|
63
|
64
|
55
|
64
|
68
|
64
|
50
|
51
|
36
|
|
2025/04
|
61
|
65
|
59
|
63
|
80
|
66
|
60
|
60
|
69
|
73
|
57
|
218
|
107
|
79
|
47
|
58
|
66
|
64
|
62
|
67
|
44
|
78
|
70
|
71
|
66
|
56
|
46
|
62
|
51
|
51
|
|
|
2025/03
|
87
|
45
|
25
|
47
|
60
|
74
|
59
|
69
|
100
|
103
|
83
|
132
|
102
|
44
|
42
|
47
|
39
|
50
|
47
|
47
|
43
|
54
|
63
|
65
|
54
|
57
|
104
|
101
|
117
|
78
|
69
|
|
2025/02
|
106
|
79
|
120
|
71
|
56
|
43
|
82
|
47
|
45
|
57
|
67
|
94
|
88
|
68
|
83
|
82
|
77
|
64
|
79
|
70
|
57
|
69
|
98
|
74
|
77
|
100
|
68
|
87
|
|||
|
2025/01
|
103
|
176
|
189
|
186
|
89
|
72
|
55
|
62
|
49
|
53
|
69
|
71
|
79
|
120
|
64
|
60
|
67
|
79
|
119
|
128
|
122
|
202
|
190
|
84
|
33
|
62
|
52
|
76
|
208
|
84
|
150
|
|
2024/12
|
59
|
91
|
109
|
82
|
69
|
78
|
101
|
56
|
56
|
74
|
91
|
93
|
89
|
70
|
55
|
61
|
80
|
81
|
52
|
79
|
85
|
57
|
77
|
104
|
115
|
137
|
123
|
65
|
58
|
79
|
99
|
|
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