Air Quality
Excellent
No health implications.
4
PM2.5
7
PM10
33
O3
0.6
CO
2
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Nov
34
Excellent
Wed
27 Nov
32
Excellent
Thu
28 Nov
38
Excellent
Fri
29 Nov
34
Excellent
Sat
30 Nov
33
Excellent
Sun
1 Dec
38
Excellent
Mon
2 Dec
23
Excellent
Air quality in the last 12 months (Changtai)
|
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
|
|
|
2024/08
|
25
|
28
|
36
|
43
|
39
|
39
|
31
|
26
|
30
|
44
|
41
|
34
|
25
|
25
|
21
|
19
|
21
|
20
|
18
|
13
|
16
|
24
|
27
|
31
|
40
|
46
|
36
|
30
|
39
|
31
|
32
|
|
2024/07
|
17
|
17
|
16
|
18
|
16
|
15
|
13
|
16
|
13
|
20
|
24
|
26
|
23
|
23
|
20
|
19
|
18
|
15
|
17
|
21
|
22
|
29
|
35
|
26
|
12
|
7
|
11
|
18
|
21
|
19
|
11
|
|
2024/06
|
10
|
8
|
27
|
25
|
27
|
28
|
25
|
29
|
22
|
21
|
17
|
26
|
29
|
22
|
20
|
20
|
16
|
21
|
16
|
19
|
21
|
28
|
20
|
12
|
16
|
20
|
18
|
16
|
14
|
18
|
|
|
2024/05
|
29
|
21
|
30
|
40
|
25
|
38
|
51
|
49
|
49
|
41
|
46
|
34
|
26
|
31
|
43
|
57
|
52
|
54
|
44
|
20
|
13
|
11
|
22
|
23
|
31
|
18
|
15
|
23
|
29
|
46
|
31
|
|
2024/04
|
32
|
54
|
42
|
45
|
28
|
34
|
20
|
35
|
19
|
40
|
48
|
56
|
69
|
49
|
55
|
51
|
44
|
39
|
42
|
49
|
24
|
34
|
34
|
23
|
38
|
23
|
26
|
16
|
26
|
28
|
|
|
2024/03
|
9
|
26
|
44
|
48
|
63
|
42
|
34
|
62
|
63
|
63
|
39
|
32
|
70
|
66
|
56
|
73
|
62
|
44
|
56
|
57
|
58
|
67
|
70
|
38
|
38
|
46
|
47
|
52
|
52
|
57
|
37
|
|
2024/02
|
51
|
36
|
33
|
22
|
27
|
22
|
18
|
18
|
44
|
88
|
47
|
44
|
49
|
47
|
46
|
35
|
40
|
70
|
42
|
32
|
22
|
33
|
25
|
35
|
50
|
41
|
32
|
48
|
50
|
||
|
2024/01
|
72
|
74
|
43
|
45
|
64
|
73
|
71
|
94
|
73
|
48
|
78
|
94
|
74
|
48
|
74
|
73
|
52
|
56
|
68
|
39
|
31
|
26
|
17
|
33
|
54
|
70
|
84
|
85
|
68
|
47
|
66
|
|
2023/12
|
51
|
43
|
46
|
42
|
46
|
46
|
37
|
54
|
63
|
71
|
59
|
47
|
33
|
51
|
49
|
22
|
23
|
31
|
46
|
13
|
23
|
49
|
39
|
35
|
53
|
60
|
61
|
60
|
55
|
69
|
76
|
|
2023/11
|
38
|
38
|
47
|
62
|
60
|
49
|
41
|
50
|
55
|
53
|
18
|
19
|
27
|
42
|
33
|
31
|
49
|
59
|
64
|
57
|
52
|
46
|
49
|
66
|
48
|
40
|
53
|
61
|
58
|
57
|
|
|
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