Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
80
*
PM2.5
147
PM10
1
O3
1.3
CO
6
SO2
49
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
16 Dec
102
Light
Wed
17 Dec
112
Light
Thu
18 Dec
129
Light
Fri
19 Dec
132
Light
Sat
20 Dec
86
Good
Sun
21 Dec
41
Excellent
Mon
22 Dec
36
Excellent
Air quality in the last 12 months (Chengcheng)
|
2025/11
|
63
|
68
|
71
|
83
|
89
|
67
|
34
|
45
|
81
|
92
|
85
|
75
|
58
|
79
|
88
|
71
|
25
|
33
|
49
|
66
|
75
|
85
|
70
|
98
|
79
|
144
|
149
|
101
|
95
|
89
|
|
|
2025/10
|
35
|
26
|
31
|
32
|
27
|
14
|
15
|
20
|
21
|
17
|
14
|
17
|
27
|
41
|
26
|
30
|
20
|
24
|
38
|
26
|
28
|
43
|
63
|
73
|
56
|
46
|
55
|
63
|
76
|
85
|
66
|
|
2025/09
|
35
|
32
|
18
|
10
|
30
|
48
|
57
|
51
|
40
|
36
|
23
|
22
|
36
|
45
|
43
|
32
|
21
|
13
|
17
|
37
|
16
|
14
|
22
|
30
|
37
|
33
|
32
|
34
|
40
|
52
|
|
|
2025/08
|
34
|
39
|
39
|
41
|
29
|
34
|
33
|
26
|
24
|
27
|
34
|
39
|
46
|
43
|
33
|
19
|
23
|
30
|
28
|
26
|
42
|
45
|
29
|
23
|
36
|
40
|
31
|
20
|
23
|
32
|
32
|
|
2025/07
|
24
|
17
|
26
|
31
|
21
|
33
|
30
|
35
|
37
|
35
|
43
|
48
|
43
|
36
|
43
|
47
|
42
|
40
|
40
|
25
|
30
|
38
|
21
|
18
|
22
|
27
|
31
|
33
|
36
|
35
|
35
|
|
2025/06
|
41
|
43
|
47
|
54
|
44
|
55
|
57
|
52
|
56
|
55
|
58
|
52
|
54
|
48
|
51
|
59
|
52
|
36
|
26
|
37
|
34
|
36
|
37
|
41
|
37
|
24
|
33
|
24
|
31
|
25
|
|
|
2025/05
|
85
|
92
|
60
|
70
|
204
|
358
|
148
|
101
|
72
|
48
|
47
|
57
|
57
|
72
|
64
|
68
|
214
|
100
|
76
|
67
|
66
|
87
|
53
|
49
|
44
|
41
|
48
|
54
|
56
|
54
|
43
|
|
2025/04
|
74
|
76
|
73
|
101
|
75
|
87
|
90
|
99
|
105
|
74
|
124
|
257
|
123
|
73
|
60
|
112
|
121
|
88
|
64
|
68
|
78
|
184
|
111
|
65
|
65
|
64
|
55
|
47
|
57
|
115
|
|
|
2025/03
|
98
|
66
|
26
|
44
|
68
|
67
|
70
|
76
|
66
|
71
|
113
|
174
|
104
|
67
|
43
|
40
|
46
|
45
|
46
|
48
|
58
|
69
|
101
|
149
|
110
|
238
|
187
|
142
|
84
|
65
|
67
|
|
2025/02
|
147
|
119
|
39
|
43
|
40
|
72
|
75
|
35
|
57
|
75
|
81
|
84
|
74
|
76
|
72
|
77
|
78
|
83
|
81
|
88
|
106
|
103
|
54
|
60
|
72
|
69
|
74
|
85
|
|||
|
2025/01
|
105
|
73
|
84
|
104
|
94
|
58
|
54
|
54
|
50
|
73
|
74
|
76
|
90
|
65
|
39
|
65
|
90
|
100
|
99
|
117
|
118
|
152
|
150
|
108
|
45
|
74
|
46
|
78
|
160
|
137
|
171
|
|
2024/12
|
68
|
68
|
61
|
75
|
62
|
67
|
53
|
54
|
80
|
92
|
100
|
113
|
59
|
57
|
63
|
81
|
97
|
68
|
73
|
87
|
46
|
67
|
94
|
120
|
114
|
83
|
57
|
56
|
72
|
78
|
80
|
|
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