Air Quality
Excellent
No health implications.
7
PM2.5
19
PM10
54
O3
0.6
CO
6
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Apr
48
Excellent
Sat
18 Apr
71
Good
Sun
19 Apr
75
Good
Mon
20 Apr
74
Good
Tue
21 Apr
66
Good
Wed
22 Apr
47
Excellent
Thu
23 Apr
31
Excellent
Air quality in the last 12 months (Changshan)
|
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
|
|
|
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
|
|
|
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