Air Quality
Excellent
No health implications.
13
PM2.5
24
PM10
2
O3
0.6
CO
3
SO2
30
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 May
56
Good
Fri
9 May
52
Good
Sat
10 May
54
Good
Sun
11 May
64
Good
Mon
12 May
67
Good
Tue
13 May
20
Excellent
Wed
14 May
45
Excellent
Air quality in the last 12 months (Yun'an)
|
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
|
|
|
2024/08
|
21
|
29
|
29
|
35
|
34
|
39
|
42
|
36
|
34
|
27
|
34
|
27
|
24
|
26
|
25
|
17
|
22
|
19
|
28
|
26
|
19
|
27
|
32
|
32
|
27
|
35
|
35
|
44
|
38
|
32
|
36
|
|
2024/07
|
27
|
25
|
16
|
21
|
21
|
18
|
18
|
18
|
20
|
16
|
16
|
16
|
15
|
23
|
31
|
23
|
19
|
18
|
27
|
26
|
25
|
22
|
20
|
24
|
26
|
31
|
23
|
19
|
12
|
19
|
17
|
|
2024/06
|
10
|
25
|
29
|
21
|
38
|
18
|
27
|
24
|
15
|
18
|
16
|
23
|
28
|
21
|
21
|
24
|
25
|
25
|
24
|
23
|
18
|
19
|
18
|
13
|
17
|
27
|
31
|
23
|
18
|
21
|
|
|
2024/05
|
16
|
25
|
25
|
32
|
22
|
42
|
27
|
32
|
43
|
59
|
36
|
29
|
39
|
55
|
56
|
56
|
51
|
56
|
44
|
17
|
15
|
29
|
40
|
27
|
24
|
23
|
32
|
22
|
32
|
52
|
25
|
|
2024/04
|
48
|
46
|
31
|
35
|
24
|
33
|
14
|
14
|
31
|
46
|
54
|
52
|
47
|
44
|
43
|
38
|
35
|
30
|
36
|
20
|
17
|
36
|
30
|
38
|
39
|
35
|
49
|
46
|
34
|
30
|
|
|
2024/03
|
36
|
44
|
53
|
49
|
41
|
36
|
45
|
46
|
48
|
16
|
20
|
35
|
60
|
60
|
60
|
64
|
74
|
51
|
22
|
59
|
64
|
52
|
48
|
38
|
41
|
36
|
52
|
41
|
47
|
42
|
44
|
|
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