Air Quality
Excellent
No health implications.
4
PM2.5
15
PM10
44
O3
0.6
CO
4
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 May
54
Good
Sat
9 May
58
Good
Sun
10 May
60
Good
Mon
11 May
59
Good
Tue
12 May
57
Good
Wed
13 May
60
Good
Thu
14 May
50
Excellent
Air quality in the last 12 months (Yun'an)
|
2026/04
|
26
|
41
|
42
|
36
|
59
|
52
|
46
|
38
|
42
|
35
|
42
|
40
|
33
|
32
|
25
|
28
|
28
|
35
|
45
|
35
|
30
|
30
|
18
|
22
|
38
|
62
|
37
|
30
|
24
|
25
|
|
|
2026/03
|
15
|
21
|
12
|
15
|
26
|
26
|
43
|
54
|
50
|
17
|
34
|
40
|
59
|
47
|
48
|
42
|
35
|
33
|
48
|
31
|
42
|
36
|
39
|
43
|
47
|
35
|
31
|
35
|
34
|
31
|
38
|
|
2026/02
|
32
|
41
|
50
|
58
|
50
|
36
|
33
|
26
|
44
|
54
|
57
|
38
|
40
|
47
|
28
|
30
|
39
|
37
|
51
|
50
|
50
|
35
|
41
|
46
|
52
|
40
|
41
|
15
|
|||
|
2026/01
|
70
|
22
|
36
|
58
|
56
|
41
|
46
|
48
|
52
|
59
|
53
|
62
|
63
|
70
|
73
|
70
|
98
|
91
|
69
|
60
|
29
|
32
|
32
|
54
|
80
|
86
|
61
|
59
|
64
|
55
|
38
|
|
2025/12
|
54
|
30
|
59
|
73
|
68
|
74
|
81
|
64
|
63
|
70
|
60
|
58
|
37
|
36
|
49
|
62
|
49
|
50
|
73
|
81
|
54
|
82
|
89
|
60
|
19
|
34
|
49
|
53
|
65
|
50
|
64
|
|
2025/11
|
32
|
34
|
28
|
11
|
22
|
34
|
38
|
42
|
27
|
17
|
19
|
23
|
33
|
36
|
47
|
50
|
49
|
32
|
26
|
38
|
38
|
47
|
58
|
57
|
43
|
56
|
54
|
60
|
62
|
69
|
|
|
2025/10
|
43
|
31
|
27
|
38
|
15
|
17
|
27
|
43
|
40
|
44
|
49
|
39
|
30
|
32
|
35
|
55
|
59
|
52
|
27
|
17
|
15
|
12
|
20
|
37
|
44
|
52
|
39
|
44
|
52
|
53
|
33
|
|
2025/09
|
25
|
29
|
27
|
28
|
29
|
32
|
41
|
11
|
17
|
27
|
27
|
25
|
28
|
28
|
27
|
37
|
39
|
38
|
39
|
32
|
17
|
19
|
24
|
11
|
16
|
25
|
37
|
36
|
40
|
32
|
|
|
2025/08
|
27
|
24
|
24
|
37
|
26
|
18
|
30
|
32
|
30
|
29
|
28
|
29
|
34
|
33
|
14
|
29
|
28
|
13
|
18
|
23
|
23
|
32
|
37
|
34
|
24
|
36
|
39
|
38
|
36
|
29
|
24
|
|
2025/07
|
18
|
25
|
32
|
34
|
44
|
43
|
43
|
26
|
26
|
29
|
22
|
31
|
27
|
38
|
32
|
29
|
37
|
45
|
34
|
19
|
12
|
14
|
16
|
21
|
28
|
29
|
32
|
36
|
33
|
28
|
24
|
|
2025/06
|
30
|
35
|
18
|
29
|
37
|
26
|
21
|
18
|
30
|
39
|
29
|
16
|
16
|
14
|
13
|
22
|
18
|
15
|
14
|
17
|
16
|
18
|
14
|
18
|
20
|
24
|
17
|
20
|
23
|
18
|
|
|
2025/05
|
33
|
42
|
31
|
32
|
26
|
34
|
22
|
23
|
21
|
35
|
33
|
45
|
48
|
35
|
27
|
18
|
23
|
22
|
27
|
26
|
26
|
24
|
24
|
18
|
34
|
37
|
60
|
63
|
31
|
27
|
34
|
|
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