Air Quality
Excellent
No health implications.
8
PM2.5
15
PM10
51
O3
0.2
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Aug
64
Good
Sat
15 Aug
63
Good
Sun
16 Aug
68
Good
Mon
17 Aug
63
Good
Tue
18 Aug
80
Good
Wed
19 Aug
67
Good
Thu
20 Aug
48
Excellent
Air quality in the last 12 months (Chengde)
|
2026/07
|
37
|
46
|
51
|
53
|
32
|
30
|
27
|
27
|
39
|
29
|
20
|
23
|
34
|
32
|
36
|
32
|
37
|
36
|
35
|
43
|
39
|
34
|
40
|
41
|
33
|
30
|
35
|
40
|
32
|
27
|
30
|
|
2026/06
|
56
|
70
|
30
|
22
|
21
|
24
|
24
|
24
|
24
|
23
|
27
|
45
|
44
|
33
|
53
|
49
|
34
|
47
|
57
|
30
|
27
|
41
|
34
|
36
|
25
|
34
|
47
|
54
|
49
|
39
|
|
|
2026/05
|
46
|
39
|
24
|
31
|
50
|
45
|
30
|
31
|
52
|
49
|
37
|
54
|
71
|
76
|
62
|
55
|
32
|
26
|
32
|
27
|
29
|
36
|
35
|
58
|
51
|
35
|
39
|
35
|
29
|
44
|
60
|
|
2026/04
|
39
|
67
|
88
|
52
|
47
|
27
|
28
|
52
|
40
|
30
|
55
|
63
|
52
|
61
|
73
|
73
|
48
|
75
|
86
|
100
|
51
|
48
|
56
|
61
|
60
|
46
|
32
|
26
|
32
|
39
|
|
|
2026/03
|
58
|
74
|
75
|
55
|
59
|
37
|
54
|
67
|
29
|
64
|
57
|
65
|
91
|
36
|
56
|
62
|
81
|
36
|
43
|
49
|
74
|
104
|
99
|
108
|
115
|
73
|
42
|
55
|
64
|
32
|
39
|
|
2026/02
|
39
|
34
|
66
|
102
|
62
|
28
|
27
|
31
|
68
|
80
|
50
|
75
|
82
|
82
|
32
|
35
|
92
|
32
|
58
|
74
|
214
|
48
|
40
|
61
|
86
|
69
|
52
|
55
|
|||
|
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
|
|
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