Air Quality
Excellent
No health implications.
17
PM2.5
22
PM10
28
O3
0.6
CO
6
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Feb
39
Excellent
Thu
13 Feb
47
Excellent
Fri
14 Feb
33
Excellent
Sat
15 Feb
46
Excellent
Sun
16 Feb
42
Excellent
Mon
17 Feb
34
Excellent
Tue
18 Feb
27
Excellent
Air quality in the last 12 months (Yunyan)
|
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
|
|
|
2024/08
|
11
|
12
|
14
|
14
|
20
|
20
|
23
|
22
|
25
|
22
|
29
|
50
|
49
|
40
|
33
|
36
|
28
|
27
|
42
|
34
|
30
|
20
|
16
|
15
|
14
|
21
|
21
|
26
|
34
|
31
|
22
|
|
2024/07
|
22
|
29
|
15
|
14
|
17
|
18
|
20
|
24
|
25
|
25
|
23
|
22
|
23
|
18
|
17
|
19
|
18
|
16
|
13
|
14
|
14
|
18
|
17
|
14
|
26
|
41
|
37
|
35
|
17
|
18
|
14
|
|
2024/06
|
28
|
30
|
8
|
16
|
21
|
22
|
16
|
11
|
9
|
12
|
30
|
28
|
33
|
36
|
46
|
29
|
12
|
26
|
21
|
26
|
29
|
14
|
28
|
31
|
15
|
10
|
11
|
16
|
15
|
30
|
|
|
2024/05
|
18
|
17
|
13
|
15
|
33
|
43
|
23
|
24
|
20
|
19
|
20
|
15
|
40
|
43
|
43
|
39
|
38
|
15
|
25
|
32
|
20
|
24
|
39
|
35
|
34
|
23
|
30
|
29
|
19
|
13
|
34
|
|
2024/04
|
45
|
49
|
46
|
15
|
18
|
16
|
17
|
22
|
36
|
44
|
34
|
47
|
59
|
59
|
71
|
71
|
48
|
27
|
20
|
23
|
27
|
46
|
26
|
36
|
41
|
46
|
40
|
54
|
59
|
17
|
|
|
2024/03
|
44
|
63
|
35
|
37
|
32
|
25
|
57
|
56
|
41
|
48
|
54
|
48
|
40
|
34
|
28
|
35
|
44
|
16
|
37
|
65
|
61
|
52
|
42
|
49
|
33
|
37
|
56
|
29
|
51
|
48
|
52
|
|
2024/02
|
54
|
26
|
18
|
30
|
20
|
19
|
25
|
39
|
90
|
214
|
86
|
48
|
52
|
48
|
65
|
41
|
43
|
43
|
50
|
65
|
60
|
17
|
18
|
22
|
18
|
22
|
39
|
35
|
35
|
||
|
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