Air Quality
Excellent
No health implications.
10
PM2.5
25
PM10
106
O3
0.4
CO
1
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
53
Good
Mon
28 Jul
58
Good
Tue
29 Jul
52
Good
Wed
30 Jul
51
Good
Thu
31 Jul
42
Excellent
Fri
1 Aug
35
Excellent
Sat
2 Aug
20
Excellent
Air quality in the last 12 months (Changshun)
|
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
|
|
|
2024/10
|
7
|
15
|
36
|
41
|
44
|
56
|
35
|
35
|
30
|
54
|
51
|
45
|
28
|
24
|
32
|
30
|
16
|
24
|
28
|
19
|
25
|
19
|
34
|
34
|
30
|
30
|
49
|
36
|
31
|
28
|
40
|
|
2024/09
|
22
|
18
|
14
|
15
|
32
|
38
|
30
|
15
|
15
|
20
|
22
|
27
|
24
|
32
|
28
|
32
|
21
|
29
|
41
|
46
|
37
|
29
|
38
|
46
|
48
|
41
|
44
|
39
|
26
|
14
|
|
|
2024/08
|
9
|
9
|
12
|
13
|
15
|
17
|
18
|
20
|
19
|
23
|
34
|
54
|
47
|
38
|
36
|
32
|
31
|
28
|
33
|
27
|
21
|
17
|
12
|
15
|
14
|
17
|
19
|
19
|
27
|
25
|
21
|
|
2024/07
|
18
|
21
|
12
|
12
|
15
|
14
|
19
|
16
|
17
|
16
|
14
|
16
|
16
|
14
|
13
|
15
|
13
|
14
|
9
|
10
|
13
|
16
|
16
|
12
|
25
|
30
|
31
|
20
|
13
|
12
|
13
|
|
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