Air Quality
Excellent
No health implications.
18
PM2.5
21
PM10
55
O3
0.5
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Mar
38
Excellent
Mon
17 Mar
36
Excellent
Tue
18 Mar
37
Excellent
Wed
19 Mar
37
Excellent
Thu
20 Mar
34
Excellent
Fri
21 Mar
34
Excellent
Sat
22 Mar
37
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