Air Quality
Excellent
No health implications.
8
PM2.5
17
PM10
17
O3
0.4
CO
2
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Sep
29
Excellent
Sat
27 Sep
34
Excellent
Sun
28 Sep
32
Excellent
Mon
29 Sep
35
Excellent
Tue
30 Sep
28
Excellent
Wed
1 Oct
31
Excellent
Thu
2 Oct
45
Excellent
Air quality in the last 12 months (Yunyan)
|
2025/08
|
25
|
30
|
28
|
28
|
30
|
24
|
16
|
16
|
21
|
23
|
21
|
26
|
30
|
28
|
16
|
11
|
16
|
20
|
14
|
15
|
15
|
11
|
17
|
17
|
17
|
16
|
17
|
15
|
20
|
20
|
30
|
|
2025/07
|
10
|
8
|
9
|
12
|
17
|
23
|
25
|
23
|
19
|
20
|
17
|
22
|
20
|
25
|
22
|
23
|
24
|
28
|
27
|
26
|
14
|
11
|
11
|
17
|
19
|
23
|
26
|
27
|
28
|
27
|
22
|
|
2025/06
|
24
|
11
|
23
|
24
|
28
|
32
|
39
|
52
|
46
|
29
|
32
|
26
|
26
|
16
|
26
|
31
|
18
|
17
|
12
|
21
|
27
|
12
|
31
|
13
|
14
|
12
|
18
|
13
|
15
|
11
|
|
|
2025/05
|
51
|
55
|
43
|
21
|
37
|
30
|
20
|
27
|
29
|
20
|
42
|
38
|
31
|
34
|
46
|
37
|
33
|
48
|
61
|
23
|
22
|
27
|
36
|
55
|
33
|
20
|
11
|
9
|
15
|
20
|
15
|
|
2025/04
|
33
|
43
|
57
|
68
|
55
|
62
|
68
|
64
|
76
|
58
|
58
|
162
|
249
|
104
|
82
|
67
|
64
|
57
|
27
|
36
|
40
|
26
|
41
|
22
|
44
|
29
|
21
|
30
|
40
|
17
|
|
|
2025/03
|
41
|
48
|
66
|
30
|
16
|
24
|
35
|
41
|
20
|
33
|
44
|
56
|
28
|
24
|
24
|
28
|
38
|
29
|
28
|
53
|
57
|
67
|
56
|
65
|
67
|
68
|
65
|
80
|
16
|
24
|
39
|
|
2025/02
|
23
|
18
|
29
|
35
|
40
|
16
|
23
|
51
|
60
|
42
|
32
|
46
|
44
|
21
|
29
|
41
|
28
|
29
|
18
|
15
|
17
|
12
|
18
|
21
|
30
|
46
|
29
|
37
|
|||
|
2025/01
|
87
|
67
|
77
|
83
|
81
|
79
|
62
|
42
|
21
|
37
|
53
|
64
|
56
|
70
|
63
|
75
|
67
|
64
|
61
|
78
|
85
|
78
|
67
|
56
|
16
|
21
|
44
|
54
|
60
|
45
|
40
|
|
2024/12
|
65
|
86
|
51
|
39
|
22
|
12
|
16
|
43
|
20
|
11
|
26
|
38
|
50
|
65
|
65
|
68
|
67
|
56
|
68
|
90
|
123
|
79
|
67
|
81
|
70
|
46
|
55
|
82
|
65
|
44
|
57
|
|
2024/11
|
49
|
27
|
54
|
60
|
53
|
57
|
50
|
45
|
43
|
36
|
35
|
30
|
35
|
45
|
51
|
49
|
39
|
14
|
12
|
16
|
16
|
24
|
30
|
32
|
13
|
21
|
31
|
32
|
44
|
50
|
|
|
2024/10
|
7
|
11
|
35
|
40
|
40
|
58
|
29
|
24
|
42
|
52
|
59
|
47
|
33
|
18
|
26
|
30
|
22
|
29
|
17
|
12
|
21
|
13
|
23
|
20
|
17
|
30
|
50
|
43
|
33
|
35
|
43
|
|
2024/09
|
23
|
20
|
16
|
19
|
29
|
37
|
28
|
15
|
16
|
22
|
21
|
30
|
31
|
33
|
24
|
31
|
20
|
22
|
27
|
32
|
27
|
16
|
29
|
32
|
43
|
47
|
43
|
40
|
25
|
13
|
|
|
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