Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
76
*
PM2.5
134
PM10
8
O3
1.4
CO
18
SO2
52
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
14 Dec
65
Good
Mon
15 Dec
59
Good
Tue
16 Dec
59
Good
Wed
17 Dec
58
Good
Thu
18 Dec
59
Good
Fri
19 Dec
58
Good
Sat
20 Dec
32
Excellent
Air quality in the last 12 months (Chengzihe)
|
2025/11
|
99
|
104
|
58
|
80
|
140
|
102
|
25
|
57
|
41
|
25
|
39
|
68
|
58
|
53
|
71
|
73
|
40
|
44
|
71
|
40
|
108
|
114
|
70
|
136
|
50
|
70
|
75
|
68
|
72
|
55
|
|
|
2025/10
|
29
|
34
|
53
|
48
|
23
|
39
|
53
|
32
|
37
|
41
|
52
|
38
|
50
|
69
|
49
|
94
|
61
|
20
|
21
|
24
|
25
|
47
|
56
|
66
|
95
|
121
|
75
|
45
|
148
|
57
|
83
|
|
2025/09
|
33
|
33
|
43
|
45
|
43
|
30
|
25
|
34
|
30
|
38
|
24
|
49
|
52
|
35
|
17
|
18
|
15
|
30
|
34
|
37
|
31
|
36
|
42
|
31
|
20
|
14
|
28
|
38
|
40
|
53
|
|
|
2025/08
|
33
|
24
|
24
|
15
|
23
|
20
|
20
|
19
|
18
|
17
|
23
|
31
|
29
|
21
|
29
|
20
|
21
|
26
|
24
|
22
|
30
|
13
|
22
|
28
|
23
|
13
|
24
|
30
|
15
|
32
|
43
|
|
2025/07
|
31
|
19
|
23
|
30
|
40
|
17
|
26
|
33
|
33
|
33
|
34
|
37
|
24
|
19
|
18
|
11
|
22
|
20
|
23
|
21
|
19
|
19
|
29
|
33
|
26
|
14
|
25
|
21
|
21
|
17
|
21
|
|
2025/06
|
48
|
30
|
17
|
15
|
22
|
21
|
23
|
28
|
31
|
19
|
18
|
22
|
30
|
30
|
25
|
19
|
20
|
25
|
30
|
21
|
14
|
15
|
29
|
42
|
47
|
55
|
42
|
53
|
33
|
30
|
|
|
2025/05
|
38
|
38
|
30
|
27
|
21
|
38
|
45
|
38
|
37
|
22
|
46
|
54
|
47
|
40
|
25
|
46
|
36
|
19
|
22
|
30
|
30
|
19
|
21
|
25
|
21
|
27
|
33
|
44
|
47
|
47
|
54
|
|
2025/04
|
101
|
80
|
66
|
63
|
60
|
20
|
38
|
70
|
67
|
73
|
161
|
104
|
47
|
31
|
28
|
35
|
61
|
55
|
39
|
70
|
103
|
32
|
41
|
39
|
41
|
19
|
38
|
56
|
39
|
42
|
|
|
2025/03
|
31
|
23
|
41
|
55
|
58
|
45
|
43
|
67
|
77
|
82
|
85
|
89
|
23
|
24
|
27
|
30
|
43
|
42
|
45
|
77
|
96
|
17
|
53
|
70
|
112
|
91
|
26
|
18
|
34
|
27
|
57
|
|
2025/02
|
67
|
103
|
91
|
41
|
31
|
32
|
49
|
34
|
32
|
44
|
64
|
75
|
37
|
33
|
48
|
49
|
26
|
21
|
22
|
29
|
30
|
27
|
25
|
33
|
69
|
36
|
63
|
74
|
|||
|
2025/01
|
86
|
65
|
46
|
56
|
95
|
99
|
87
|
69
|
43
|
41
|
65
|
103
|
98
|
76
|
49
|
68
|
67
|
110
|
137
|
132
|
138
|
179
|
139
|
99
|
101
|
102
|
83
|
77
|
78
|
50
|
48
|
|
2024/12
|
35
|
29
|
36
|
25
|
19
|
28
|
23
|
30
|
46
|
58
|
28
|
34
|
32
|
37
|
34
|
37
|
32
|
28
|
34
|
80
|
64
|
56
|
49
|
39
|
79
|
40
|
25
|
39
|
64
|
93
|
94
|
|
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