Air Quality
Excellent
No health implications.
35
PM2.5
48
PM10
55
O3
0.6
CO
8
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Oct
63
Good
Thu
30 Oct
61
Good
Fri
31 Oct
63
Good
Sat
1 Nov
60
Good
Sun
2 Nov
55
Good
Mon
3 Nov
20
Excellent
Tue
4 Nov
27
Excellent
Air quality in the last 12 months (Yun'an)
|
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
|
|
2025/04
|
27
|
48
|
62
|
58
|
78
|
79
|
72
|
70
|
69
|
45
|
42
|
59
|
179
|
151
|
100
|
88
|
80
|
66
|
38
|
38
|
29
|
36
|
44
|
35
|
21
|
47
|
56
|
30
|
48
|
47
|
|
|
2025/03
|
38
|
36
|
44
|
30
|
13
|
14
|
18
|
30
|
54
|
68
|
50
|
35
|
31
|
28
|
22
|
17
|
42
|
36
|
45
|
52
|
60
|
64
|
60
|
72
|
71
|
53
|
42
|
44
|
10
|
11
|
13
|
|
2025/02
|
35
|
36
|
15
|
23
|
41
|
45
|
24
|
35
|
52
|
48
|
58
|
52
|
40
|
63
|
49
|
95
|
54
|
52
|
60
|
49
|
38
|
41
|
24
|
27
|
70
|
78
|
98
|
61
|
|||
|
2025/01
|
74
|
71
|
65
|
72
|
84
|
86
|
81
|
84
|
80
|
46
|
49
|
61
|
61
|
82
|
61
|
71
|
61
|
66
|
67
|
71
|
68
|
69
|
70
|
56
|
45
|
19
|
35
|
35
|
111
|
62
|
41
|
|
2024/12
|
62
|
74
|
75
|
67
|
77
|
77
|
49
|
22
|
56
|
61
|
62
|
29
|
41
|
50
|
50
|
57
|
62
|
52
|
47
|
64
|
65
|
65
|
71
|
68
|
69
|
60
|
81
|
80
|
81
|
80
|
71
|
|
2024/11
|
49
|
44
|
56
|
49
|
47
|
55
|
47
|
51
|
67
|
49
|
51
|
53
|
50
|
42
|
27
|
35
|
39
|
21
|
18
|
17
|
18
|
26
|
34
|
47
|
35
|
23
|
35
|
46
|
49
|
54
|
|
|
2024/10
|
37
|
24
|
46
|
46
|
46
|
49
|
56
|
55
|
52
|
39
|
46
|
59
|
67
|
57
|
42
|
58
|
42
|
41
|
38
|
26
|
38
|
37
|
20
|
41
|
46
|
35
|
27
|
17
|
20
|
34
|
51
|
|
2024/09
|
29
|
35
|
30
|
37
|
36
|
17
|
16
|
19
|
21
|
26
|
39
|
46
|
40
|
36
|
22
|
32
|
29
|
25
|
36
|
43
|
31
|
14
|
15
|
14
|
22
|
33
|
45
|
51
|
46
|
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