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
22 Jun
Tue
23 Jun
Wed
24 Jun
Thu
25 Jun
Fri
26 Jun
Sat
27 Jun
Sun
28 Jun
Real-time AQI (Monitoring Station in Chengde)
铁路
4318
PM2.5
40
PM10
137
O3
0.3
CO
6
SO2
10
NO2
中国银行
4214
PM2.5
30
PM10
134
O3
0.4
CO
3
SO2
4
NO2
杏林街1号
4526
PM2.5
26
PM10
142
O3
0.4
CO
4
SO2
5
NO2
滨河大街98号
453
PM2.5
6
PM10
143
O3
0.4
CO
3
SO2
3
NO2
Air quality in the last 12 months (Chengde)
|
2026/05
|
41
|
39
|
22
|
29
|
46
|
41
|
29
|
28
|
49
|
47
|
36
|
54
|
74
|
81
|
64
|
56
|
28
|
25
|
30
|
27
|
26
|
31
|
32
|
52
|
50
|
33
|
34
|
30
|
28
|
38
|
58
|
|
2026/04
|
29
|
62
|
79
|
45
|
46
|
29
|
25
|
47
|
46
|
28
|
46
|
52
|
45
|
64
|
70
|
68
|
43
|
67
|
83
|
94
|
43
|
47
|
53
|
57
|
55
|
45
|
29
|
23
|
28
|
37
|
|
|
2026/03
|
56
|
80
|
59
|
53
|
59
|
30
|
48
|
66
|
28
|
59
|
43
|
61
|
99
|
27
|
53
|
56
|
76
|
33
|
40
|
42
|
70
|
97
|
96
|
98
|
101
|
50
|
35
|
49
|
60
|
30
|
34
|
|
2026/02
|
36
|
30
|
54
|
78
|
51
|
22
|
20
|
27
|
58
|
68
|
33
|
58
|
59
|
64
|
29
|
26
|
90
|
26
|
48
|
65
|
198
|
48
|
37
|
55
|
85
|
63
|
49
|
51
|
|||
|
2026/01
|
40
|
40
|
59
|
58
|
40
|
41
|
33
|
54
|
70
|
27
|
23
|
49
|
29
|
56
|
83
|
48
|
28
|
45
|
33
|
26
|
30
|
40
|
45
|
39
|
30
|
45
|
35
|
52
|
55
|
69
|
49
|
|
2025/12
|
25
|
25
|
24
|
30
|
41
|
70
|
54
|
33
|
54
|
70
|
50
|
38
|
30
|
43
|
62
|
67
|
55
|
72
|
113
|
31
|
37
|
63
|
57
|
39
|
27
|
48
|
65
|
79
|
63
|
36
|
27
|
|
2025/11
|
33
|
29
|
42
|
57
|
94
|
96
|
55
|
56
|
30
|
34
|
50
|
64
|
35
|
49
|
67
|
42
|
24
|
29
|
38
|
35
|
40
|
50
|
70
|
65
|
31
|
58
|
32
|
56
|
65
|
51
|
|
|
2025/10
|
37
|
40
|
35
|
40
|
31
|
21
|
35
|
26
|
17
|
20
|
31
|
35
|
40
|
43
|
50
|
34
|
24
|
21
|
22
|
25
|
33
|
37
|
50
|
72
|
68
|
30
|
31
|
56
|
122
|
97
|
54
|
|
2025/09
|
30
|
29
|
41
|
48
|
47
|
31
|
23
|
22
|
37
|
27
|
49
|
60
|
57
|
27
|
18
|
20
|
23
|
24
|
25
|
31
|
30
|
30
|
27
|
35
|
31
|
30
|
32
|
35
|
33
|
32
|
|
|
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
|
|
|
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