Air Quality
Excellent
No health implications.
19
PM2.5
36
PM10
28
O3
0.4
CO
7
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Sep
42
Excellent
Thu
11 Sep
49
Excellent
Fri
12 Sep
53
Good
Sat
13 Sep
58
Good
Sun
14 Sep
58
Good
Mon
15 Sep
55
Good
Tue
16 Sep
26
Excellent
Air quality in the last 12 months (Changtai)
|
2025/08
|
24
|
26
|
19
|
14
|
14
|
24
|
31
|
36
|
25
|
14
|
14
|
24
|
21
|
12
|
18
|
20
|
24
|
20
|
17
|
18
|
24
|
21
|
28
|
25
|
27
|
18
|
17
|
24
|
22
|
25
|
31
|
|
2025/07
|
31
|
25
|
29
|
31
|
13
|
22
|
29
|
34
|
35
|
14
|
10
|
22
|
35
|
23
|
29
|
34
|
37
|
25
|
20
|
17
|
10
|
13
|
17
|
20
|
21
|
19
|
22
|
18
|
21
|
20
|
16
|
|
2025/06
|
39
|
25
|
13
|
24
|
32
|
35
|
34
|
41
|
23
|
26
|
32
|
26
|
19
|
17
|
15
|
21
|
21
|
26
|
17
|
14
|
15
|
19
|
21
|
26
|
20
|
14
|
17
|
17
|
18
|
23
|
|
|
2025/05
|
62
|
49
|
48
|
51
|
36
|
36
|
36
|
62
|
40
|
26
|
27
|
38
|
45
|
42
|
33
|
18
|
18
|
26
|
27
|
29
|
26
|
33
|
30
|
19
|
43
|
46
|
38
|
36
|
11
|
22
|
45
|
|
2025/04
|
19
|
39
|
48
|
59
|
49
|
50
|
56
|
62
|
77
|
42
|
45
|
42
|
120
|
83
|
86
|
70
|
59
|
57
|
50
|
45
|
48
|
38
|
32
|
33
|
22
|
14
|
33
|
39
|
37
|
47
|
|
|
2025/03
|
64
|
32
|
31
|
32
|
13
|
13
|
22
|
34
|
39
|
43
|
54
|
54
|
32
|
37
|
39
|
8
|
45
|
48
|
45
|
48
|
52
|
53
|
62
|
71
|
81
|
60
|
48
|
54
|
20
|
11
|
11
|
|
2025/02
|
48
|
22
|
14
|
31
|
58
|
58
|
15
|
40
|
41
|
39
|
42
|
56
|
43
|
35
|
42
|
65
|
49
|
59
|
31
|
36
|
23
|
21
|
20
|
33
|
47
|
65
|
73
|
66
|
|||
|
2025/01
|
64
|
63
|
59
|
45
|
52
|
58
|
62
|
60
|
59
|
60
|
45
|
46
|
56
|
54
|
73
|
86
|
65
|
53
|
54
|
52
|
60
|
64
|
57
|
37
|
29
|
25
|
19
|
36
|
120
|
40
|
36
|
|
2024/12
|
56
|
63
|
43
|
38
|
44
|
44
|
39
|
28
|
31
|
35
|
42
|
25
|
21
|
38
|
57
|
58
|
55
|
54
|
51
|
40
|
46
|
62
|
61
|
38
|
44
|
53
|
62
|
68
|
64
|
57
|
66
|
|
2024/11
|
14
|
16
|
33
|
44
|
43
|
37
|
26
|
26
|
44
|
44
|
34
|
26
|
20
|
33
|
35
|
24
|
27
|
17
|
14
|
9
|
12
|
20
|
26
|
28
|
24
|
15
|
27
|
25
|
36
|
48
|
|
|
2024/10
|
12
|
10
|
16
|
17
|
18
|
23
|
22
|
15
|
26
|
36
|
46
|
41
|
34
|
38
|
33
|
28
|
32
|
44
|
40
|
18
|
27
|
31
|
33
|
32
|
30
|
28
|
38
|
20
|
30
|
40
|
16
|
|
2024/09
|
33
|
40
|
41
|
30
|
25
|
14
|
14
|
20
|
17
|
35
|
47
|
52
|
26
|
30
|
22
|
23
|
24
|
21
|
30
|
19
|
22
|
9
|
10
|
14
|
19
|
27
|
23
|
16
|
21
|
15
|
|
|
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