Air Quality
Excellent
No health implications.
13
PM2.5
23
PM10
39
O3
0.6
CO
10
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Feb
74
Good
Thu
19 Feb
88
Good
Fri
20 Feb
91
Good
Sat
21 Feb
73
Good
Sun
22 Feb
64
Good
Mon
23 Feb
69
Good
Tue
24 Feb
41
Excellent
Chengde Air quality rank
Air quality in the last 12 months (Chengde)
|
2026/01
|
42
|
48
|
65
|
65
|
52
|
43
|
34
|
56
|
78
|
28
|
27
|
55
|
30
|
62
|
88
|
53
|
35
|
48
|
35
|
29
|
36
|
47
|
50
|
48
|
40
|
51
|
38
|
57
|
61
|
76
|
58
|
|
2025/12
|
27
|
25
|
25
|
35
|
46
|
77
|
57
|
31
|
56
|
74
|
52
|
43
|
33
|
47
|
74
|
70
|
66
|
97
|
129
|
30
|
36
|
68
|
59
|
35
|
28
|
55
|
72
|
97
|
71
|
38
|
29
|
|
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
|
|||
|
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