Air Quality
Excellent
No health implications.
7
PM2.5
9
PM10
37
O3
0.5
CO
6
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 Jan
40
Excellent
Sun
1 Feb
55
Good
Mon
2 Feb
80
Good
Tue
3 Feb
88
Good
Wed
4 Feb
76
Good
Thu
5 Feb
81
Good
Fri
6 Feb
24
Excellent
Changshan Air quality rank
Air quality in the last 12 months (Changshan)
|
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
|
|
|
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
|
|
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