Air Quality
Excellent
No health implications.
14
PM2.5
29
PM10
59
O3
0.3
CO
5
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Sep
35
Excellent
Sat
20 Sep
35
Excellent
Sun
21 Sep
40
Excellent
Mon
22 Sep
36
Excellent
Tue
23 Sep
31
Excellent
Wed
24 Sep
27
Excellent
Thu
25 Sep
45
Excellent
Yunyan Air quality rank
Air quality in the last 12 months (Yunyan)
|
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
|
|
2024/12
|
65
|
86
|
51
|
39
|
22
|
12
|
16
|
43
|
20
|
11
|
26
|
38
|
50
|
65
|
65
|
68
|
67
|
56
|
68
|
90
|
123
|
79
|
67
|
81
|
70
|
46
|
55
|
82
|
65
|
44
|
57
|
|
2024/11
|
49
|
27
|
54
|
60
|
53
|
57
|
50
|
45
|
43
|
36
|
35
|
30
|
35
|
45
|
51
|
49
|
39
|
14
|
12
|
16
|
16
|
24
|
30
|
32
|
13
|
21
|
31
|
32
|
44
|
50
|
|
|
2024/10
|
7
|
11
|
35
|
40
|
40
|
58
|
29
|
24
|
42
|
52
|
59
|
47
|
33
|
18
|
26
|
30
|
22
|
29
|
17
|
12
|
21
|
13
|
23
|
20
|
17
|
30
|
50
|
43
|
33
|
35
|
43
|
|
2024/09
|
23
|
20
|
16
|
19
|
29
|
37
|
28
|
15
|
16
|
22
|
21
|
30
|
31
|
33
|
24
|
31
|
20
|
22
|
27
|
32
|
27
|
16
|
29
|
32
|
43
|
47
|
43
|
40
|
25
|
13
|
|
|
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