Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
24
PM2.5
54
*
PM10
70
O3
0.3
CO
6
SO2
19
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
19 May
62
Good
Tue
20 May
61
Good
Wed
21 May
60
Good
Thu
22 May
58
Good
Fri
23 May
64
Good
Sat
24 May
57
Good
Sun
25 May
27
Excellent
Air quality in the last 12 months (Ludian)
|
2025/02
|
32
|
32
|
25
|
43
|
34
|
25
|
27
|
27
|
35
|
36
|
44
|
36
|
35
|
41
|
45
|
42
|
41
|
35
|
42
|
33
|
35
|
30
|
28
|
32
|
30
|
36
|
37
|
34
|
|||
|
2025/01
|
64
|
59
|
57
|
61
|
49
|
65
|
32
|
30
|
32
|
30
|
29
|
43
|
44
|
34
|
43
|
50
|
49
|
41
|
46
|
52
|
53
|
49
|
46
|
36
|
29
|
44
|
49
|
54
|
48
|
45
|
32
|
|
2024/12
|
50
|
50
|
44
|
39
|
35
|
38
|
39
|
31
|
32
|
28
|
35
|
34
|
32
|
31
|
39
|
47
|
38
|
46
|
42
|
37
|
39
|
38
|
43
|
36
|
38
|
39
|
44
|
43
|
52
|
41
|
45
|
|
2024/11
|
30
|
34
|
43
|
28
|
30
|
39
|
34
|
27
|
30
|
40
|
39
|
32
|
35
|
46
|
51
|
42
|
39
|
37
|
31
|
33
|
33
|
36
|
38
|
32
|
29
|
26
|
30
|
35
|
44
|
40
|
|
|
2024/10
|
22
|
30
|
29
|
29
|
26
|
22
|
28
|
36
|
31
|
23
|
25
|
27
|
28
|
31
|
31
|
30
|
30
|
39
|
36
|
38
|
27
|
27
|
28
|
41
|
34
|
29
|
29
|
32
|
40
|
39
|
32
|
|
2024/09
|
30
|
20
|
27
|
31
|
34
|
33
|
32
|
26
|
22
|
25
|
33
|
25
|
27
|
35
|
40
|
36
|
27
|
30
|
37
|
34
|
33
|
30
|
31
|
41
|
32
|
36
|
30
|
26
|
27
|
25
|
|
|
2024/08
|
33
|
36
|
36
|
26
|
22
|
26
|
22
|
20
|
23
|
30
|
58
|
45
|
45
|
47
|
39
|
37
|
34
|
32
|
40
|
37
|
37
|
36
|
30
|
35
|
34
|
28
|
38
|
36
|
37
|
34
|
41
|
|
2024/07
|
23
|
29
|
21
|
14
|
15
|
22
|
22
|
21
|
24
|
24
|
15
|
19
|
25
|
22
|
17
|
21
|
28
|
30
|
27
|
29
|
25
|
26
|
27
|
33
|
26
|
32
|
34
|
16
|
18
|
18
|
26
|
|
2024/06
|
38
|
26
|
22
|
20
|
23
|
23
|
15
|
16
|
15
|
21
|
18
|
28
|
34
|
30
|
41
|
38
|
18
|
22
|
20
|
22
|
27
|
25
|
24
|
26
|
26
|
30
|
17
|
16
|
19
|
23
|
|
|
2024/05
|
29
|
34
|
28
|
24
|
43
|
45
|
30
|
31
|
20
|
30
|
23
|
27
|
32
|
37
|
31
|
33
|
36
|
29
|
28
|
34
|
32
|
36
|
35
|
38
|
29
|
21
|
28
|
24
|
21
|
20
|
37
|
|
2024/04
|
34
|
40
|
49
|
29
|
32
|
30
|
29
|
29
|
30
|
39
|
43
|
51
|
43
|
50
|
54
|
61
|
48
|
39
|
33
|
37
|
36
|
37
|
27
|
33
|
30
|
40
|
42
|
43
|
41
|
29
|
|
|
2024/03
|
36
|
32
|
32
|
33
|
37
|
33
|
28
|
33
|
31
|
35
|
30
|
49
|
50
|
40
|
53
|
49
|
50
|
32
|
46
|
46
|
52
|
39
|
26
|
31
|
38
|
37
|
47
|
26
|
36
|
52
|
41
|
|
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