Air Quality
Excellent
No health implications.
16
PM2.5
32
PM10
106
O3
0.2
CO
4
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Mar
36
Excellent
Sun
22 Mar
52
Good
Mon
23 Mar
53
Good
Tue
24 Mar
42
Excellent
Wed
25 Mar
57
Good
Thu
26 Mar
36
Excellent
Fri
27 Mar
16
Excellent
Air quality in the last 12 months (Ludian)
|
2026/02
|
38
|
38
|
37
|
45
|
43
|
51
|
53
|
36
|
39
|
34
|
36
|
53
|
46
|
47
|
39
|
76
|
80
|
42
|
32
|
48
|
50
|
56
|
49
|
45
|
45
|
55
|
42
|
45
|
|||
|
2026/01
|
34
|
26
|
37
|
27
|
32
|
29
|
35
|
44
|
73
|
86
|
72
|
68
|
56
|
51
|
62
|
63
|
75
|
46
|
76
|
40
|
30
|
34
|
58
|
54
|
45
|
44
|
78
|
68
|
53
|
40
|
36
|
|
2025/12
|
77
|
63
|
39
|
31
|
37
|
52
|
44
|
56
|
49
|
44
|
64
|
40
|
36
|
54
|
58
|
53
|
40
|
57
|
47
|
44
|
48
|
49
|
39
|
47
|
40
|
64
|
58
|
64
|
56
|
43
|
40
|
|
2025/11
|
21
|
22
|
20
|
30
|
28
|
22
|
28
|
25
|
18
|
25
|
25
|
25
|
26
|
26
|
32
|
35
|
28
|
22
|
26
|
32
|
39
|
42
|
45
|
49
|
45
|
54
|
50
|
51
|
59
|
73
|
|
|
2025/10
|
19
|
20
|
23
|
24
|
26
|
24
|
17
|
19
|
20
|
24
|
22
|
24
|
23
|
25
|
26
|
23
|
18
|
20
|
16
|
17
|
17
|
22
|
22
|
26
|
24
|
22
|
23
|
30
|
25
|
31
|
24
|
|
2025/09
|
31
|
30
|
32
|
38
|
34
|
29
|
41
|
28
|
32
|
36
|
30
|
28
|
30
|
40
|
37
|
27
|
32
|
27
|
29
|
28
|
30
|
24
|
21
|
27
|
41
|
24
|
20
|
19
|
22
|
17
|
|
|
2025/08
|
35
|
34
|
38
|
40
|
38
|
37
|
36
|
36
|
33
|
34
|
26
|
33
|
34
|
39
|
38
|
31
|
28
|
30
|
29
|
38
|
29
|
27
|
25
|
26
|
28
|
25
|
25
|
30
|
30
|
27
|
29
|
|
2025/07
|
26
|
19
|
26
|
25
|
25
|
23
|
28
|
24
|
24
|
24
|
26
|
25
|
31
|
32
|
30
|
31
|
33
|
37
|
29
|
27
|
24
|
19
|
20
|
21
|
24
|
28
|
29
|
35
|
40
|
41
|
33
|
|
2025/06
|
25
|
24
|
30
|
32
|
34
|
42
|
42
|
37
|
45
|
40
|
34
|
42
|
44
|
44
|
26
|
29
|
26
|
23
|
23
|
27
|
27
|
33
|
34
|
25
|
20
|
21
|
27
|
21
|
29
|
21
|
|
|
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
|
|
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