Air Quality
Excellent
No health implications.
21
PM2.5
29
PM10
50
O3
0.8
CO
8
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Sep
67
Good
Sun
13 Sep
62
Good
Mon
14 Sep
45
Excellent
Tue
15 Sep
54
Good
Wed
16 Sep
64
Good
Thu
17 Sep
66
Good
Fri
18 Sep
40
Excellent
Air quality in the last 12 months (Changshan)
|
2026/08
|
20
|
22
|
34
|
47
|
36
|
37
|
40
|
24
|
16
|
14
|
15
|
27
|
27
|
31
|
27
|
22
|
28
|
30
|
27
|
25
|
22
|
21
|
20
|
19
|
19
|
25
|
32
|
24
|
20
|
17
|
22
|
|
2026/07
|
17
|
13
|
24
|
22
|
15
|
19
|
19
|
18
|
22
|
31
|
22
|
14
|
16
|
23
|
18
|
20
|
24
|
26
|
24
|
17
|
20
|
29
|
34
|
42
|
26
|
27
|
22
|
18
|
20
|
23
|
20
|
|
2026/06
|
51
|
52
|
55
|
19
|
36
|
36
|
40
|
39
|
25
|
37
|
36
|
38
|
30
|
23
|
34
|
30
|
38
|
21
|
11
|
20
|
19
|
29
|
25
|
29
|
21
|
38
|
52
|
38
|
30
|
17
|
|
|
2026/05
|
30
|
33
|
30
|
33
|
34
|
38
|
39
|
30
|
32
|
33
|
34
|
43
|
53
|
26
|
27
|
32
|
33
|
35
|
38
|
28
|
24
|
32
|
16
|
22
|
23
|
30
|
29
|
36
|
48
|
60
|
50
|
|
2026/04
|
31
|
39
|
24
|
33
|
62
|
55
|
53
|
32
|
43
|
31
|
37
|
31
|
47
|
36
|
41
|
45
|
27
|
53
|
49
|
57
|
47
|
15
|
20
|
26
|
33
|
44
|
51
|
54
|
25
|
27
|
|
|
2026/03
|
20
|
16
|
27
|
72
|
50
|
51
|
69
|
58
|
61
|
50
|
47
|
47
|
57
|
55
|
56
|
72
|
57
|
45
|
20
|
47
|
51
|
41
|
23
|
22
|
35
|
44
|
34
|
39
|
34
|
33
|
22
|
|
2026/02
|
37
|
46
|
67
|
67
|
82
|
39
|
21
|
44
|
41
|
48
|
51
|
61
|
61
|
45
|
37
|
21
|
55
|
52
|
52
|
41
|
41
|
47
|
123
|
55
|
24
|
24
|
16
|
18
|
|||
|
2026/01
|
23
|
27
|
66
|
81
|
51
|
52
|
53
|
50
|
50
|
52
|
59
|
61
|
57
|
55
|
55
|
67
|
98
|
106
|
67
|
13
|
38
|
58
|
76
|
79
|
87
|
94
|
25
|
76
|
79
|
38
|
14
|
|
2025/12
|
66
|
120
|
57
|
60
|
62
|
67
|
76
|
85
|
73
|
63
|
66
|
78
|
40
|
40
|
50
|
57
|
70
|
136
|
110
|
75
|
63
|
45
|
55
|
43
|
38
|
55
|
53
|
55
|
57
|
83
|
59
|
|
2025/11
|
45
|
54
|
64
|
38
|
37
|
43
|
38
|
47
|
13
|
45
|
40
|
28
|
48
|
51
|
76
|
68
|
54
|
30
|
37
|
41
|
48
|
58
|
60
|
51
|
70
|
86
|
84
|
85
|
65
|
57
|
|
|
2025/10
|
41
|
37
|
38
|
36
|
34
|
34
|
43
|
50
|
42
|
42
|
45
|
50
|
49
|
34
|
40
|
34
|
37
|
31
|
19
|
27
|
29
|
30
|
35
|
38
|
47
|
53
|
39
|
56
|
45
|
39
|
32
|
|
2025/09
|
28
|
27
|
30
|
32
|
33
|
27
|
25
|
24
|
23
|
19
|
20
|
22
|
25
|
21
|
28
|
31
|
28
|
30
|
23
|
25
|
26
|
32
|
31
|
20
|
26
|
26
|
37
|
35
|
41
|
40
|
|
|
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