Air Quality
Excellent
No health implications.
27
PM2.5
40
PM10
93
O3
0.4
CO
8
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Jun
54
Good
Sun
15 Jun
61
Good
Mon
16 Jun
59
Good
Tue
17 Jun
42
Excellent
Wed
18 Jun
39
Excellent
Thu
19 Jun
31
Excellent
Fri
20 Jun
36
Excellent
Air quality in the last 12 months (Ludian)
|
2025/05
|
55
|
48
|
48
|
48
|
35
|
28
|
28
|
30
|
40
|
45
|
45
|
43
|
49
|
39
|
46
|
37
|
38
|
41
|
38
|
39
|
44
|
45
|
50
|
44
|
32
|
30
|
24
|
24
|
27
|
21
|
21
|
|
2025/04
|
41
|
37
|
48
|
50
|
35
|
30
|
34
|
46
|
51
|
44
|
58
|
144
|
103
|
75
|
66
|
63
|
43
|
37
|
38
|
31
|
33
|
36
|
65
|
37
|
40
|
44
|
36
|
32
|
36
|
36
|
|
|
2025/03
|
43
|
46
|
46
|
42
|
31
|
23
|
26
|
38
|
38
|
41
|
45
|
44
|
49
|
40
|
31
|
25
|
25
|
26
|
40
|
47
|
52
|
56
|
48
|
40
|
33
|
35
|
39
|
126
|
38
|
34
|
33
|
|
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
|
|
|
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