Air Quality
Excellent
No health implications.
9
PM2.5
21
PM10
24
O3
0.6
CO
5
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Apr
56
Good
Sun
27 Apr
56
Good
Mon
28 Apr
56
Good
Tue
29 Apr
82
Good
Wed
30 Apr
81
Good
Thu
1 May
30
Excellent
Fri
2 May
48
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