Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Oct
Sat
18 Oct
Sun
19 Oct
Mon
20 Oct
Tue
21 Oct
Wed
22 Oct
Thu
23 Oct
Chengde Air quality rank
Real-time AQI (Monitoring Station in Chengde)
铁路
2014
PM2.5
20
PM10
15
O3
0.3
CO
1
SO2
19
NO2
中国银行
2517
PM2.5
25
PM10
18
O3
0.3
CO
2
SO2
13
NO2
开发区
3620
PM2.5
36
PM10
24
O3
0.3
CO
3
SO2
10
NO2
Air quality in the last 12 months (Chengde)
|
2025/08
|
41
|
51
|
39
|
28
|
25
|
27
|
26
|
27
|
23
|
24
|
32
|
29
|
24
|
28
|
39
|
29
|
31
|
34
|
35
|
24
|
23
|
26
|
29
|
22
|
25
|
23
|
23
|
20
|
36
|
37
|
38
|
|
2025/07
|
36
|
36
|
29
|
26
|
31
|
21
|
28
|
33
|
40
|
52
|
47
|
51
|
31
|
28
|
27
|
20
|
24
|
25
|
36
|
28
|
25
|
34
|
40
|
22
|
26
|
39
|
23
|
19
|
22
|
27
|
33
|
|
2025/06
|
42
|
40
|
28
|
27
|
30
|
27
|
27
|
35
|
44
|
25
|
40
|
56
|
41
|
48
|
22
|
21
|
33
|
49
|
39
|
29
|
25
|
31
|
39
|
50
|
60
|
52
|
53
|
32
|
46
|
33
|
|
|
2025/05
|
28
|
31
|
24
|
31
|
39
|
22
|
48
|
71
|
24
|
35
|
43
|
48
|
60
|
28
|
38
|
62
|
37
|
24
|
33
|
61
|
58
|
59
|
40
|
30
|
42
|
50
|
35
|
36
|
59
|
63
|
56
|
|
2025/04
|
42
|
25
|
38
|
56
|
24
|
41
|
61
|
38
|
37
|
46
|
71
|
98
|
47
|
32
|
47
|
62
|
54
|
28
|
21
|
43
|
51
|
41
|
61
|
34
|
32
|
60
|
30
|
34
|
50
|
40
|
|
|
2025/03
|
97
|
43
|
44
|
55
|
51
|
31
|
50
|
79
|
85
|
107
|
133
|
46
|
56
|
62
|
43
|
30
|
30
|
27
|
30
|
34
|
34
|
43
|
85
|
62
|
39
|
94
|
45
|
36
|
40
|
36
|
44
|
|
2025/02
|
83
|
64
|
22
|
23
|
23
|
44
|
28
|
19
|
29
|
51
|
80
|
47
|
58
|
53
|
68
|
34
|
25
|
35
|
29
|
28
|
25
|
32
|
22
|
35
|
46
|
45
|
76
|
104
|
|||
|
2025/01
|
65
|
35
|
43
|
62
|
54
|
31
|
31
|
30
|
24
|
32
|
45
|
45
|
47
|
40
|
36
|
59
|
66
|
69
|
52
|
64
|
55
|
45
|
80
|
106
|
119
|
88
|
23
|
26
|
96
|
30
|
62
|
|
2024/12
|
56
|
28
|
40
|
44
|
34
|
36
|
25
|
40
|
50
|
57
|
51
|
72
|
37
|
37
|
46
|
44
|
31
|
34
|
56
|
52
|
30
|
35
|
55
|
69
|
72
|
32
|
28
|
45
|
63
|
61
|
51
|
|
2024/11
|
105
|
76
|
52
|
34
|
42
|
43
|
68
|
104
|
107
|
88
|
63
|
58
|
56
|
60
|
49
|
45
|
36
|
43
|
63
|
63
|
39
|
39
|
54
|
76
|
58
|
22
|
25
|
26
|
35
|
44
|
|
|
2024/10
|
23
|
25
|
30
|
42
|
64
|
47
|
25
|
30
|
51
|
31
|
38
|
59
|
84
|
91
|
37
|
46
|
63
|
46
|
24
|
31
|
46
|
30
|
35
|
48
|
68
|
117
|
43
|
38
|
52
|
47
|
80
|
|
2024/09
|
25
|
21
|
28
|
39
|
29
|
30
|
23
|
33
|
43
|
25
|
36
|
29
|
31
|
22
|
23
|
32
|
21
|
31
|
50
|
17
|
16
|
23
|
25
|
44
|
45
|
29
|
39
|
45
|
53
|
17
|
|
|
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
*: primary pollution