Air Quality
Excellent
No health implications.
21
PM2.5
39
PM10
27
O3
0.6
CO
5
SO2
24
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Dec
67
Good
Fri
12 Dec
63
Good
Sat
13 Dec
66
Good
Sun
14 Dec
62
Good
Mon
15 Dec
76
Good
Tue
16 Dec
72
Good
Wed
17 Dec
36
Excellent
Chengde Air quality rank
Air quality in the last 12 months (Chengde)
|
2025/11
|
34
|
24
|
43
|
61
|
111
|
100
|
54
|
55
|
29
|
37
|
52
|
69
|
32
|
59
|
77
|
42
|
21
|
30
|
43
|
33
|
41
|
58
|
80
|
69
|
30
|
63
|
34
|
66
|
72
|
57
|
|
|
2025/10
|
46
|
48
|
39
|
46
|
35
|
20
|
36
|
25
|
14
|
18
|
30
|
33
|
40
|
47
|
56
|
37
|
26
|
17
|
20
|
24
|
34
|
39
|
51
|
74
|
81
|
32
|
31
|
62
|
129
|
97
|
53
|
|
2025/09
|
34
|
33
|
46
|
54
|
51
|
34
|
31
|
26
|
43
|
31
|
55
|
62
|
59
|
32
|
23
|
24
|
24
|
26
|
35
|
37
|
36
|
31
|
29
|
43
|
44
|
44
|
49
|
43
|
42
|
46
|
|
|
2025/08
|
44
|
51
|
39
|
29
|
23
|
32
|
29
|
30
|
22
|
27
|
35
|
35
|
24
|
33
|
43
|
30
|
32
|
40
|
34
|
25
|
23
|
25
|
32
|
23
|
26
|
27
|
25
|
16
|
38
|
40
|
40
|
|
2025/07
|
34
|
36
|
28
|
35
|
34
|
19
|
27
|
38
|
43
|
52
|
48
|
52
|
25
|
25
|
29
|
21
|
22
|
26
|
37
|
28
|
24
|
37
|
40
|
22
|
30
|
41
|
28
|
19
|
20
|
27
|
33
|
|
2025/06
|
48
|
45
|
25
|
23
|
35
|
33
|
28
|
35
|
46
|
24
|
39
|
56
|
45
|
45
|
19
|
18
|
32
|
49
|
41
|
29
|
24
|
32
|
41
|
57
|
58
|
51
|
52
|
30
|
49
|
38
|
|
|
2025/05
|
30
|
34
|
26
|
34
|
41
|
23
|
52
|
73
|
24
|
31
|
47
|
61
|
68
|
34
|
40
|
65
|
38
|
27
|
45
|
68
|
59
|
61
|
39
|
30
|
42
|
49
|
41
|
44
|
62
|
71
|
58
|
|
2025/04
|
44
|
20
|
41
|
59
|
23
|
46
|
62
|
36
|
41
|
54
|
75
|
101
|
45
|
28
|
49
|
64
|
60
|
35
|
24
|
48
|
57
|
44
|
63
|
37
|
34
|
67
|
36
|
41
|
55
|
49
|
|
|
2025/03
|
114
|
50
|
40
|
56
|
56
|
32
|
51
|
84
|
103
|
111
|
135
|
51
|
63
|
58
|
36
|
29
|
31
|
23
|
32
|
35
|
31
|
43
|
84
|
73
|
46
|
95
|
48
|
34
|
35
|
38
|
50
|
|
2025/02
|
80
|
67
|
19
|
19
|
20
|
45
|
25
|
16
|
28
|
56
|
87
|
50
|
58
|
58
|
72
|
35
|
20
|
32
|
30
|
28
|
22
|
31
|
22
|
39
|
50
|
47
|
87
|
122
|
|||
|
2025/01
|
62
|
32
|
42
|
66
|
61
|
31
|
29
|
25
|
24
|
32
|
46
|
47
|
51
|
40
|
31
|
56
|
70
|
84
|
56
|
68
|
58
|
46
|
74
|
104
|
121
|
82
|
20
|
30
|
113
|
37
|
62
|
|
2024/12
|
63
|
23
|
38
|
36
|
36
|
29
|
22
|
34
|
53
|
57
|
48
|
76
|
39
|
31
|
47
|
49
|
30
|
35
|
60
|
52
|
30
|
33
|
52
|
69
|
77
|
29
|
25
|
42
|
66
|
68
|
52
|
|
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