Air Quality
Excellent
No health implications.
9
PM2.5
23
PM10
16
O3
0.3
CO
3
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Jun
55
Good
Fri
5 Jun
59
Good
Sat
6 Jun
56
Good
Sun
7 Jun
53
Good
Mon
8 Jun
58
Good
Tue
9 Jun
26
Excellent
Wed
10 Jun
40
Excellent
Air quality in the last 12 months (Chengde)
|
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
|
|
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
|
|
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