Air Quality
Excellent
No health implications.
15
PM2.5
29
PM10
113
O3
0.5
CO
9
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Sep
71
Good
Tue
29 Sep
66
Good
Wed
30 Sep
68
Good
Thu
1 Oct
52
Good
Fri
2 Oct
53
Good
Sat
3 Oct
51
Good
Sun
4 Oct
47
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