Air Quality
Excellent
No health implications.
22
PM2.5
38
PM10
42
O3
0.8
CO
8
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 Jan
39
Excellent
Sun
1 Feb
39
Excellent
Mon
2 Feb
55
Good
Tue
3 Feb
52
Good
Wed
4 Feb
51
Good
Thu
5 Feb
56
Good
Fri
6 Feb
24
Excellent
Air quality in the last 12 months (Yunyan)
|
2025/12
|
110
|
87
|
78
|
73
|
71
|
70
|
45
|
58
|
52
|
43
|
54
|
60
|
35
|
55
|
52
|
72
|
58
|
68
|
40
|
40
|
50
|
36
|
26
|
29
|
41
|
58
|
74
|
75
|
55
|
41
|
34
|
|
2025/11
|
21
|
20
|
9
|
17
|
22
|
17
|
24
|
14
|
10
|
13
|
18
|
28
|
44
|
49
|
49
|
49
|
42
|
21
|
28
|
37
|
46
|
49
|
69
|
55
|
57
|
65
|
63
|
68
|
52
|
79
|
|
|
2025/10
|
14
|
13
|
18
|
20
|
17
|
18
|
12
|
18
|
20
|
21
|
26
|
28
|
30
|
29
|
13
|
13
|
18
|
15
|
10
|
10
|
11
|
17
|
24
|
34
|
33
|
25
|
23
|
28
|
42
|
21
|
20
|
|
2025/09
|
21
|
18
|
17
|
24
|
25
|
33
|
32
|
30
|
21
|
13
|
17
|
17
|
16
|
18
|
21
|
17
|
16
|
16
|
25
|
37
|
20
|
20
|
19
|
15
|
9
|
10
|
21
|
21
|
18
|
14
|
|
|
2025/08
|
25
|
30
|
28
|
28
|
30
|
24
|
16
|
16
|
21
|
23
|
21
|
26
|
30
|
28
|
16
|
11
|
16
|
20
|
14
|
15
|
15
|
11
|
17
|
17
|
17
|
16
|
17
|
15
|
20
|
20
|
30
|
|
2025/07
|
10
|
8
|
9
|
12
|
17
|
23
|
25
|
23
|
19
|
20
|
17
|
22
|
20
|
25
|
22
|
23
|
24
|
28
|
27
|
26
|
14
|
11
|
11
|
17
|
19
|
23
|
26
|
27
|
28
|
27
|
22
|
|
2025/06
|
24
|
11
|
23
|
24
|
28
|
32
|
39
|
52
|
46
|
29
|
32
|
26
|
26
|
16
|
26
|
31
|
18
|
17
|
12
|
21
|
27
|
12
|
31
|
13
|
14
|
12
|
18
|
13
|
15
|
11
|
|
|
2025/05
|
51
|
55
|
43
|
21
|
37
|
30
|
20
|
27
|
29
|
20
|
42
|
38
|
31
|
34
|
46
|
37
|
33
|
48
|
61
|
23
|
22
|
27
|
36
|
55
|
33
|
20
|
11
|
9
|
15
|
20
|
15
|
|
2025/04
|
33
|
43
|
57
|
68
|
55
|
62
|
68
|
64
|
76
|
58
|
58
|
162
|
249
|
104
|
82
|
67
|
64
|
57
|
27
|
36
|
40
|
26
|
41
|
22
|
44
|
29
|
21
|
30
|
40
|
17
|
|
|
2025/03
|
41
|
48
|
66
|
30
|
16
|
24
|
35
|
41
|
20
|
33
|
44
|
56
|
28
|
24
|
24
|
28
|
38
|
29
|
28
|
53
|
57
|
67
|
56
|
65
|
67
|
68
|
65
|
80
|
16
|
24
|
39
|
|
2025/02
|
23
|
18
|
29
|
35
|
40
|
16
|
23
|
51
|
60
|
42
|
32
|
46
|
44
|
21
|
29
|
41
|
28
|
29
|
18
|
15
|
17
|
12
|
18
|
21
|
30
|
46
|
29
|
37
|
|||
|
2025/01
|
87
|
67
|
77
|
83
|
81
|
79
|
62
|
42
|
21
|
37
|
53
|
64
|
56
|
70
|
63
|
75
|
67
|
64
|
61
|
78
|
85
|
78
|
67
|
56
|
16
|
21
|
44
|
54
|
60
|
45
|
40
|
|
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