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
21 Jul
Wed
22 Jul
Thu
23 Jul
Fri
24 Jul
Sat
25 Jul
Sun
26 Jul
Mon
27 Jul
Real-time AQI (Monitoring Station in Chengde)
铁路
3720
PM2.5
37
PM10
29
O3
0.4
CO
4
SO2
16
NO2
中国银行
4115
PM2.5
41
PM10
23
O3
0.4
CO
3
SO2
13
NO2
杏林街1号
2920
PM2.5
28
PM10
22
O3
0.4
CO
3
SO2
8
NO2
滨河大街98号
2412
PM2.5
24
PM10
40
O3
0.3
CO
4
SO2
11
NO2
Air quality in the last 12 months (Chengde)
|
2026/06
|
46
|
76
|
26
|
20
|
18
|
18
|
21
|
20
|
20
|
23
|
24
|
46
|
42
|
30
|
52
|
49
|
34
|
41
|
58
|
28
|
23
|
34
|
28
|
33
|
25
|
29
|
40
|
57
|
49
|
38
|
|
|
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
|
|
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