Air Quality
Excellent
No health implications.
29
PM2.5
47
PM10
53
O3
0.6
CO
12
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Nov
39
Excellent
Tue
18 Nov
28
Excellent
Wed
19 Nov
37
Excellent
Thu
20 Nov
36
Excellent
Fri
21 Nov
41
Excellent
Sat
22 Nov
49
Excellent
Sun
23 Nov
21
Excellent
Air quality in the last 12 months (Changshun)
|
2025/10
|
15
|
18
|
24
|
26
|
28
|
27
|
16
|
19
|
21
|
23
|
31
|
32
|
43
|
31
|
13
|
14
|
22
|
22
|
21
|
26
|
21
|
27
|
36
|
53
|
36
|
32
|
28
|
41
|
40
|
26
|
32
|
|
2025/09
|
18
|
22
|
22
|
22
|
27
|
32
|
35
|
31
|
27
|
21
|
20
|
19
|
18
|
19
|
20
|
19
|
18
|
18
|
24
|
31
|
26
|
28
|
21
|
18
|
14
|
16
|
18
|
20
|
19
|
15
|
|
|
2025/08
|
28
|
29
|
28
|
30
|
36
|
24
|
18
|
21
|
21
|
24
|
24
|
26
|
31
|
32
|
19
|
15
|
19
|
21
|
14
|
14
|
17
|
15
|
20
|
20
|
19
|
19
|
18
|
18
|
21
|
27
|
30
|
|
2025/07
|
14
|
15
|
14
|
14
|
17
|
22
|
25
|
25
|
26
|
26
|
25
|
26
|
26
|
20
|
21
|
23
|
21
|
24
|
29
|
28
|
16
|
17
|
12
|
15
|
17
|
20
|
27
|
33
|
29
|
31
|
26
|
|
2025/06
|
30
|
15
|
26
|
30
|
26
|
35
|
40
|
40
|
39
|
32
|
36
|
37
|
25
|
22
|
25
|
25
|
24
|
18
|
16
|
25
|
32
|
20
|
31
|
16
|
19
|
16
|
20
|
15
|
15
|
14
|
|
|
2025/05
|
49
|
56
|
41
|
27
|
32
|
33
|
20
|
37
|
32
|
21
|
39
|
33
|
32
|
38
|
46
|
49
|
34
|
44
|
58
|
24
|
30
|
30
|
35
|
58
|
36
|
22
|
14
|
16
|
23
|
19
|
21
|
|
2025/04
|
37
|
47
|
59
|
66
|
56
|
64
|
62
|
45
|
63
|
58
|
58
|
138
|
255
|
105
|
77
|
67
|
66
|
57
|
39
|
39
|
40
|
29
|
47
|
29
|
45
|
36
|
27
|
33
|
37
|
23
|
|
|
2025/03
|
41
|
35
|
64
|
46
|
32
|
33
|
37
|
38
|
29
|
26
|
36
|
45
|
33
|
26
|
23
|
29
|
39
|
25
|
35
|
43
|
52
|
64
|
63
|
62
|
58
|
57
|
63
|
77
|
22
|
24
|
42
|
|
2025/02
|
28
|
18
|
31
|
37
|
46
|
21
|
25
|
46
|
58
|
35
|
39
|
40
|
31
|
21
|
33
|
45
|
38
|
41
|
18
|
19
|
16
|
16
|
21
|
18
|
25
|
36
|
28
|
38
|
|||
|
2025/01
|
51
|
76
|
66
|
73
|
60
|
60
|
66
|
36
|
26
|
39
|
58
|
62
|
42
|
77
|
70
|
82
|
70
|
75
|
69
|
82
|
77
|
81
|
64
|
56
|
25
|
26
|
49
|
48
|
60
|
49
|
42
|
|
2024/12
|
54
|
64
|
57
|
52
|
25
|
19
|
23
|
41
|
19
|
17
|
23
|
35
|
41
|
59
|
57
|
60
|
54
|
52
|
61
|
70
|
93
|
85
|
64
|
66
|
60
|
42
|
45
|
67
|
58
|
43
|
47
|
|
2024/11
|
45
|
31
|
47
|
57
|
45
|
58
|
55
|
53
|
50
|
46
|
34
|
38
|
43
|
48
|
44
|
46
|
52
|
32
|
23
|
21
|
22
|
28
|
32
|
38
|
23
|
20
|
28
|
32
|
28
|
30
|
|
|
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