Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
11 May
Mon
12 May
Tue
13 May
Wed
14 May
Thu
15 May
Fri
16 May
Sat
17 May
Real-time AQI (Monitoring Station in Chengde)
铁路
4424
PM2.5
44
PM10
44
O3
0.4
CO
3
SO2
19
NO2
中国银行
3820
PM2.5
38
PM10
46
O3
0.3
CO
2
SO2
12
NO2
开发区
5328
PM2.5
55 *
PM10
49
O3
0.7
CO
9
SO2
23
NO2
文化中心
5931
PM2.5
68 *
PM10
40
O3
0.4
CO
4
SO2
36
NO2
Air quality in the last 12 months (Chengde)
|
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
|
|
|
2024/08
|
22
|
31
|
28
|
19
|
28
|
29
|
42
|
46
|
41
|
43
|
42
|
18
|
22
|
29
|
28
|
35
|
44
|
30
|
22
|
12
|
19
|
30
|
27
|
32
|
32
|
22
|
31
|
41
|
39
|
41
|
33
|
|
2024/07
|
32
|
37
|
25
|
28
|
40
|
43
|
32
|
43
|
58
|
49
|
53
|
45
|
46
|
44
|
50
|
39
|
20
|
23
|
31
|
29
|
39
|
25
|
42
|
50
|
21
|
19
|
27
|
27
|
36
|
21
|
17
|
|
2024/06
|
30
|
30
|
31
|
44
|
49
|
52
|
44
|
32
|
35
|
46
|
37
|
39
|
49
|
25
|
21
|
33
|
46
|
54
|
61
|
46
|
57
|
93
|
123
|
21
|
32
|
45
|
60
|
52
|
59
|
35
|
|
|
2024/05
|
36
|
47
|
56
|
59
|
68
|
53
|
46
|
48
|
68
|
132
|
159
|
30
|
32
|
49
|
24
|
41
|
57
|
60
|
49
|
24
|
40
|
53
|
70
|
24
|
25
|
25
|
32
|
36
|
58
|
39
|
16
|
|
2024/04
|
55
|
61
|
30
|
53
|
62
|
54
|
46
|
48
|
51
|
49
|
54
|
88
|
67
|
51
|
132
|
41
|
56
|
65
|
46
|
32
|
49
|
62
|
23
|
35
|
82
|
79
|
50
|
20
|
18
|
28
|
|
|
2024/03
|
34
|
44
|
32
|
55
|
68
|
42
|
44
|
29
|
50
|
78
|
72
|
39
|
44
|
45
|
81
|
125
|
31
|
85
|
42
|
28
|
61
|
55
|
53
|
50
|
48
|
66
|
96
|
232
|
86
|
55
|
42
|
|
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