Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
61
PM2.5
126
*
PM10
7
O3
1.3
CO
9
SO2
55
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
22 Dec
75
Good
Tue
23 Dec
74
Good
Wed
24 Dec
67
Good
Thu
25 Dec
67
Good
Fri
26 Dec
80
Good
Sat
27 Dec
71
Good
Sun
28 Dec
36
Excellent
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