Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
39
PM2.5
69
*
PM10
90
O3
0.6
CO
10
SO2
20
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
4 May
91
Good
Sun
5 May
58
Good
Mon
6 May
51
Good
Tue
7 May
50
Excellent
Wed
8 May
80
Good
Thu
9 May
75
Good
Air quality in the last 12 months (Chengde)
|
2024/02
|
45
|
69
|
70
|
72
|
64
|
53
|
49
|
55
|
87
|
92
|
68
|
93
|
135
|
94
|
32
|
60
|
87
|
91
|
37
|
32
|
30
|
34
|
42
|
73
|
55
|
61
|
80
|
74
|
41
|
||
|
2024/01
|
91
|
130
|
46
|
72
|
45
|
40
|
37
|
70
|
73
|
53
|
80
|
69
|
80
|
38
|
49
|
77
|
103
|
65
|
40
|
28
|
29
|
27
|
31
|
33
|
40
|
49
|
55
|
55
|
68
|
123
|
84
|
|
2023/12
|
33
|
48
|
54
|
89
|
106
|
64
|
116
|
125
|
62
|
36
|
29
|
48
|
72
|
37
|
27
|
24
|
41
|
79
|
58
|
25
|
25
|
41
|
51
|
53
|
69
|
80
|
76
|
91
|
102
|
137
|
65
|
|
2023/11
|
108
|
172
|
35
|
60
|
43
|
34
|
35
|
52
|
27
|
28
|
25
|
25
|
34
|
55
|
76
|
39
|
24
|
35
|
51
|
62
|
118
|
107
|
27
|
27
|
54
|
63
|
54
|
33
|
31
|
24
|
|
|
2023/10
|
26
|
38
|
48
|
35
|
30
|
39
|
55
|
48
|
21
|
32
|
43
|
57
|
48
|
27
|
34
|
30
|
48
|
45
|
33
|
23
|
31
|
42
|
72
|
106
|
81
|
34
|
50
|
62
|
124
|
147
|
110
|
|
2023/09
|
25
|
35
|
47
|
63
|
78
|
77
|
73
|
52
|
25
|
31
|
32
|
25
|
32
|
43
|
49
|
57
|
58
|
39
|
32
|
27
|
34
|
31
|
25
|
35
|
47
|
51
|
50
|
31
|
41
|
24
|
|
|
2023/08
|
29
|
36
|
47
|
48
|
31
|
26
|
29
|
47
|
46
|
40
|
37
|
27
|
31
|
38
|
48
|
48
|
39
|
51
|
50
|
53
|
37
|
32
|
37
|
30
|
26
|
28
|
26
|
26
|
27
|
28
|
24
|
|
2023/07
|
83
|
79
|
55
|
44
|
45
|
50
|
39
|
32
|
27
|
33
|
37
|
25
|
24
|
28
|
28
|
32
|
52
|
61
|
75
|
80
|
49
|
25
|
31
|
43
|
42
|
52
|
52
|
41
|
32
|
14
|
22
|
|
2023/06
|
61
|
31
|
31
|
33
|
37
|
33
|
46
|
48
|
30
|
27
|
26
|
28
|
32
|
58
|
82
|
91
|
84
|
75
|
72
|
32
|
30
|
51
|
68
|
60
|
63
|
45
|
55
|
45
|
42
|
65
|
|
|
2023/05
|
50
|
71
|
65
|
41
|
33
|
32
|
36
|
40
|
46
|
55
|
63
|
50
|
35
|
54
|
72
|
78
|
43
|
37
|
48
|
281
|
86
|
41
|
36
|
59
|
55
|
59
|
64
|
56
|
50
|
38
|
46
|
|
2023/04
|
74
|
72
|
63
|
38
|
34
|
48
|
36
|
53
|
66
|
190
|
398
|
199
|
324
|
173
|
160
|
45
|
66
|
58
|
72
|
62
|
44
|
40
|
53
|
54
|
51
|
48
|
73
|
68
|
39
|
36
|
|
|
2023/03
|
42
|
50
|
68
|
95
|
128
|
109
|
86
|
72
|
91
|
212
|
60
|
37
|
59
|
188
|
86
|
40
|
64
|
58
|
59
|
113
|
129
|
294
|
90
|
50
|
49
|
44
|
50
|
71
|
85
|
77
|
77
|
|
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