Air Quality
Excellent
No health implications.
4
PM2.5
30
PM10
94
O3
0.5
CO
8
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Apr
37
Excellent
Fri
26 Apr
41
Excellent
Sat
27 Apr
39
Excellent
Sun
28 Apr
45
Excellent
Mon
29 Apr
49
Excellent
Tue
30 Apr
47
Excellent
Wed
1 May
50
Excellent
Air quality in the last 12 months (Yun'an)
|
2024/02
|
51
|
41
|
29
|
31
|
17
|
15
|
10
|
13
|
27
|
81
|
62
|
59
|
56
|
45
|
38
|
26
|
37
|
28
|
32
|
32
|
38
|
28
|
17
|
18
|
14
|
15
|
13
|
19
|
17
|
||
|
2024/01
|
81
|
66
|
26
|
38
|
61
|
78
|
74
|
68
|
58
|
26
|
43
|
59
|
73
|
82
|
75
|
62
|
61
|
66
|
50
|
37
|
18
|
15
|
23
|
35
|
44
|
45
|
19
|
21
|
54
|
97
|
84
|
|
2023/12
|
36
|
49
|
58
|
59
|
42
|
36
|
46
|
60
|
73
|
65
|
49
|
40
|
48
|
71
|
59
|
20
|
17
|
25
|
13
|
28
|
29
|
52
|
51
|
48
|
53
|
63
|
63
|
62
|
68
|
49
|
46
|
|
2023/11
|
50
|
65
|
60
|
53
|
46
|
42
|
46
|
70
|
68
|
50
|
38
|
17
|
16
|
22
|
29
|
36
|
48
|
57
|
60
|
61
|
76
|
81
|
66
|
65
|
83
|
86
|
76
|
68
|
73
|
41
|
|
|
2023/10
|
41
|
36
|
47
|
44
|
30
|
24
|
26
|
17
|
15
|
13
|
14
|
26
|
35
|
39
|
48
|
51
|
59
|
44
|
28
|
22
|
16
|
17
|
31
|
50
|
51
|
56
|
53
|
58
|
35
|
35
|
44
|
|
2023/09
|
30
|
18
|
24
|
25
|
33
|
36
|
23
|
15
|
23
|
11
|
18
|
27
|
24
|
13
|
12
|
24
|
30
|
27
|
27
|
27
|
33
|
46
|
49
|
52
|
44
|
49
|
55
|
46
|
37
|
41
|
|
|
2023/08
|
32
|
37
|
46
|
26
|
26
|
26
|
24
|
22
|
28
|
25
|
27
|
28
|
26
|
30
|
33
|
36
|
37
|
38
|
42
|
31
|
27
|
32
|
24
|
32
|
22
|
28
|
25
|
31
|
16
|
25
|
31
|
|
2023/07
|
24
|
21
|
19
|
23
|
24
|
20
|
21
|
21
|
19
|
22
|
22
|
21
|
22
|
31
|
45
|
31
|
17
|
22
|
28
|
24
|
27
|
30
|
25
|
25
|
28
|
44
|
40
|
36
|
35
|
29
|
32
|
|
2023/06
|
52
|
46
|
40
|
32
|
30
|
29
|
24
|
22
|
29
|
38
|
40
|
60
|
52
|
33
|
35
|
30
|
19
|
24
|
27
|
28
|
25
|
26
|
23
|
24
|
25
|
25
|
36
|
29
|
29
|
28
|
|
|
2023/05
|
62
|
46
|
32
|
28
|
31
|
36
|
35
|
23
|
47
|
55
|
42
|
15
|
32
|
38
|
58
|
39
|
36
|
52
|
55
|
47
|
38
|
41
|
28
|
46
|
46
|
33
|
33
|
41
|
48
|
52
|
60
|
|
2023/04
|
25
|
33
|
27
|
35
|
35
|
40
|
25
|
53
|
64
|
83
|
63
|
53
|
47
|
52
|
37
|
53
|
51
|
43
|
37
|
59
|
44
|
46
|
33
|
26
|
15
|
30
|
63
|
50
|
30
|
48
|
|
|
2023/03
|
80
|
73
|
85
|
92
|
81
|
68
|
57
|
54
|
58
|
62
|
51
|
58
|
81
|
86
|
57
|
56
|
45
|
64
|
47
|
43
|
39
|
47
|
46
|
33
|
36
|
11
|
12
|
17
|
13
|
15
|
16
|
|
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