Air Quality
Excellent
No health implications.
31
PM2.5
34
PM10
20
O3
1.0
CO
10
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 Feb
49
Excellent
Fri
6 Feb
41
Excellent
Sat
7 Feb
35
Excellent
Sun
8 Feb
33
Excellent
Mon
9 Feb
39
Excellent
Tue
10 Feb
41
Excellent
Wed
11 Feb
50
Excellent
Air quality in the last 12 months (Changshun)
|
2025/12
|
77
|
77
|
74
|
58
|
57
|
53
|
40
|
52
|
45
|
43
|
54
|
52
|
41
|
47
|
48
|
61
|
54
|
55
|
33
|
40
|
50
|
33
|
32
|
28
|
46
|
55
|
76
|
66
|
43
|
44
|
40
|
|
2025/11
|
27
|
25
|
14
|
20
|
17
|
15
|
26
|
17
|
13
|
19
|
28
|
30
|
38
|
44
|
44
|
33
|
45
|
22
|
27
|
35
|
45
|
48
|
62
|
51
|
52
|
58
|
63
|
49
|
36
|
61
|
|
|
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
|
|
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