Air Quality
Excellent
No health implications.
24
PM2.5
43
PM10
77
O3
0.7
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Feb
98
Good
Tue
17 Feb
145
Light
Wed
18 Feb
127
Light
Thu
19 Feb
83
Good
Fri
20 Feb
94
Good
Sat
21 Feb
143
Light
Sun
22 Feb
27
Excellent
Yijun Air quality rank
Air quality in the last 12 months (Yijun)
|
2026/01
|
85
|
104
|
152
|
94
|
53
|
40
|
45
|
48
|
52
|
55
|
53
|
57
|
65
|
80
|
90
|
63
|
82
|
98
|
39
|
34
|
43
|
67
|
82
|
74
|
99
|
150
|
130
|
128
|
98
|
99
|
108
|
|
2025/12
|
75
|
55
|
45
|
61
|
77
|
89
|
59
|
68
|
86
|
111
|
79
|
74
|
84
|
73
|
84
|
71
|
64
|
78
|
67
|
43
|
56
|
79
|
78
|
76
|
53
|
58
|
70
|
77
|
76
|
76
|
80
|
|
2025/11
|
52
|
53
|
66
|
67
|
76
|
64
|
21
|
42
|
85
|
87
|
71
|
55
|
49
|
68
|
64
|
57
|
29
|
35
|
45
|
61
|
64
|
72
|
60
|
87
|
66
|
141
|
121
|
76
|
68
|
68
|
|
|
2025/10
|
33
|
26
|
30
|
22
|
18
|
9
|
11
|
22
|
21
|
11
|
13
|
14
|
25
|
29
|
18
|
26
|
24
|
31
|
42
|
25
|
26
|
35
|
60
|
56
|
58
|
39
|
47
|
53
|
64
|
54
|
47
|
|
2025/09
|
31
|
29
|
25
|
9
|
36
|
40
|
51
|
49
|
37
|
32
|
24
|
25
|
36
|
40
|
38
|
30
|
21
|
10
|
18
|
29
|
16
|
11
|
22
|
31
|
28
|
31
|
25
|
28
|
39
|
48
|
|
|
2025/08
|
35
|
36
|
36
|
36
|
31
|
37
|
33
|
25
|
20
|
27
|
33
|
37
|
38
|
41
|
30
|
19
|
19
|
25
|
25
|
27
|
32
|
38
|
21
|
20
|
29
|
33
|
24
|
18
|
21
|
31
|
25
|
|
2025/07
|
24
|
14
|
23
|
23
|
21
|
30
|
35
|
24
|
29
|
32
|
41
|
48
|
44
|
37
|
43
|
35
|
37
|
37
|
41
|
27
|
25
|
32
|
22
|
17
|
19
|
22
|
27
|
31
|
34
|
31
|
33
|
|
2025/06
|
31
|
37
|
38
|
48
|
40
|
50
|
49
|
42
|
50
|
49
|
52
|
54
|
52
|
49
|
49
|
61
|
49
|
32
|
25
|
31
|
34
|
36
|
35
|
40
|
27
|
25
|
26
|
25
|
35
|
24
|
|
|
2025/05
|
104
|
92
|
57
|
68
|
211
|
311
|
132
|
89
|
59
|
48
|
44
|
50
|
48
|
74
|
61
|
71
|
231
|
92
|
62
|
59
|
57
|
92
|
53
|
52
|
36
|
31
|
40
|
44
|
51
|
53
|
29
|
|
2025/04
|
60
|
62
|
81
|
105
|
74
|
82
|
81
|
97
|
101
|
64
|
145
|
269
|
95
|
63
|
53
|
139
|
99
|
87
|
74
|
62
|
85
|
175
|
88
|
59
|
61
|
61
|
48
|
39
|
54
|
127
|
|
|
2025/03
|
98
|
67
|
25
|
48
|
65
|
59
|
72
|
72
|
61
|
64
|
173
|
172
|
87
|
59
|
46
|
40
|
41
|
42
|
40
|
45
|
55
|
63
|
101
|
175
|
89
|
187
|
169
|
125
|
58
|
59
|
62
|
|
2025/02
|
144
|
96
|
36
|
36
|
37
|
58
|
80
|
35
|
52
|
63
|
64
|
72
|
60
|
66
|
54
|
73
|
69
|
67
|
78
|
102
|
112
|
97
|
37
|
48
|
67
|
64
|
71
|
79
|
|||
|
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