Air Quality
Excellent
No health implications.
17
PM2.5
31
PM10
62
O3
0.5
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Sep
41
Excellent
Sun
20 Sep
43
Excellent
Mon
21 Sep
43
Excellent
Tue
22 Sep
52
Good
Wed
23 Sep
49
Excellent
Thu
24 Sep
38
Excellent
Fri
25 Sep
46
Excellent
Air quality in the last 12 months (Yunyan)
|
2026/08
|
18
|
20
|
20
|
23
|
28
|
21
|
23
|
28
|
32
|
34
|
40
|
31
|
34
|
27
|
21
|
28
|
29
|
28
|
27
|
27
|
29
|
32
|
30
|
30
|
33
|
24
|
24
|
24
|
24
|
26
|
32
|
|
2026/07
|
22
|
23
|
24
|
18
|
18
|
24
|
25
|
25
|
25
|
23
|
19
|
26
|
35
|
31
|
36
|
30
|
26
|
26
|
31
|
34
|
38
|
44
|
36
|
25
|
25
|
28
|
26
|
20
|
22
|
21
|
17
|
|
2026/06
|
30
|
39
|
33
|
37
|
36
|
30
|
24
|
23
|
23
|
31
|
35
|
34
|
29
|
41
|
30
|
36
|
33
|
18
|
25
|
33
|
20
|
25
|
20
|
15
|
20
|
19
|
29
|
35
|
29
|
15
|
|
|
2026/05
|
33
|
27
|
27
|
35
|
41
|
38
|
40
|
42
|
48
|
58
|
64
|
46
|
33
|
47
|
26
|
23
|
20
|
23
|
32
|
31
|
21
|
23
|
30
|
31
|
30
|
36
|
43
|
24
|
29
|
42
|
40
|
|
2026/04
|
29
|
46
|
34
|
38
|
44
|
44
|
31
|
60
|
44
|
49
|
47
|
37
|
43
|
35
|
36
|
27
|
26
|
30
|
36
|
28
|
19
|
22
|
27
|
33
|
45
|
45
|
30
|
23
|
28
|
34
|
|
|
2026/03
|
40
|
26
|
30
|
31
|
45
|
57
|
33
|
14
|
15
|
30
|
47
|
40
|
40
|
57
|
18
|
21
|
41
|
23
|
30
|
24
|
46
|
36
|
27
|
28
|
35
|
33
|
30
|
26
|
35
|
44
|
24
|
|
2026/02
|
33
|
38
|
41
|
40
|
34
|
50
|
36
|
42
|
22
|
27
|
41
|
42
|
62
|
54
|
36
|
70
|
55
|
42
|
33
|
58
|
42
|
40
|
38
|
68
|
33
|
46
|
21
|
32
|
|||
|
2026/01
|
16
|
27
|
16
|
27
|
39
|
45
|
69
|
62
|
72
|
85
|
84
|
57
|
84
|
92
|
112
|
97
|
135
|
62
|
48
|
21
|
19
|
32
|
50
|
63
|
37
|
37
|
47
|
48
|
43
|
27
|
29
|
|
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
|
|
|
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