Air Quality
Excellent
No health implications.
20
PM2.5
27
PM10
25
O3
0.7
CO
5
SO2
24
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Dec
58
Good
Mon
15 Dec
60
Good
Tue
16 Dec
60
Good
Wed
17 Dec
73
Good
Thu
18 Dec
76
Good
Fri
19 Dec
31
Excellent
Sat
20 Dec
30
Excellent
Changshan Air quality rank
Air quality in the last 12 months (Changshan)
|
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
|
|
|
2025/08
|
33
|
37
|
29
|
26
|
19
|
14
|
15
|
20
|
24
|
34
|
34
|
28
|
15
|
12
|
13
|
16
|
17
|
20
|
22
|
23
|
21
|
20
|
20
|
28
|
25
|
26
|
23
|
17
|
19
|
25
|
30
|
|
2025/07
|
13
|
19
|
26
|
33
|
26
|
18
|
18
|
19
|
19
|
31
|
30
|
17
|
17
|
23
|
28
|
32
|
30
|
27
|
20
|
15
|
13
|
16
|
20
|
20
|
27
|
15
|
16
|
14
|
22
|
22
|
21
|
|
2025/06
|
36
|
21
|
20
|
39
|
34
|
30
|
35
|
38
|
22
|
22
|
20
|
25
|
20
|
21
|
18
|
24
|
30
|
20
|
21
|
20
|
18
|
21
|
15
|
14
|
27
|
21
|
23
|
19
|
23
|
26
|
|
|
2025/05
|
45
|
47
|
53
|
53
|
33
|
48
|
104
|
52
|
21
|
44
|
41
|
47
|
45
|
45
|
63
|
42
|
26
|
40
|
41
|
20
|
17
|
32
|
12
|
41
|
62
|
64
|
64
|
45
|
22
|
33
|
43
|
|
2025/04
|
39
|
43
|
62
|
68
|
57
|
59
|
59
|
57
|
59
|
45
|
50
|
101
|
156
|
97
|
61
|
50
|
58
|
58
|
50
|
46
|
57
|
16
|
39
|
31
|
26
|
39
|
32
|
35
|
54
|
56
|
|
|
2025/03
|
41
|
43
|
38
|
15
|
33
|
38
|
56
|
55
|
73
|
84
|
84
|
57
|
15
|
29
|
15
|
34
|
36
|
39
|
48
|
37
|
44
|
46
|
52
|
60
|
62
|
69
|
66
|
63
|
38
|
54
|
42
|
|
2025/02
|
17
|
15
|
47
|
48
|
42
|
50
|
61
|
45
|
36
|
47
|
55
|
55
|
98
|
106
|
78
|
45
|
59
|
29
|
42
|
18
|
17
|
24
|
30
|
56
|
85
|
63
|
53
|
40
|
|||
|
2025/01
|
88
|
81
|
85
|
82
|
84
|
81
|
83
|
96
|
79
|
37
|
49
|
57
|
60
|
63
|
85
|
55
|
55
|
63
|
55
|
57
|
81
|
74
|
67
|
62
|
48
|
26
|
38
|
59
|
159
|
61
|
51
|
|
2024/12
|
49
|
54
|
74
|
104
|
62
|
41
|
89
|
81
|
53
|
61
|
25
|
62
|
71
|
78
|
62
|
55
|
67
|
69
|
50
|
52
|
69
|
70
|
65
|
74
|
90
|
111
|
146
|
101
|
70
|
74
|
75
|
|
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