Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
65
PM2.5
208
*
PM10
93
O3
0.5
CO
8
SO2
31
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
7 May
138
Light
Thu
8 May
91
Good
Fri
9 May
137
Light
Sat
10 May
89
Good
Sun
11 May
85
Good
Mon
12 May
89
Good
Tue
13 May
47
Excellent
Air quality in the last 12 months (Chengcheng)
|
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
|
|
2024/11
|
89
|
66
|
74
|
56
|
65
|
73
|
89
|
95
|
82
|
122
|
122
|
127
|
65
|
52
|
58
|
57
|
35
|
39
|
46
|
54
|
64
|
81
|
103
|
102
|
43
|
47
|
70
|
60
|
49
|
54
|
|
|
2024/10
|
63
|
55
|
49
|
56
|
65
|
87
|
78
|
88
|
98
|
64
|
70
|
71
|
59
|
80
|
85
|
104
|
66
|
41
|
30
|
25
|
32
|
30
|
46
|
58
|
63
|
65
|
48
|
58
|
81
|
85
|
82
|
|
2024/09
|
50
|
44
|
35
|
42
|
37
|
37
|
35
|
40
|
44
|
48
|
40
|
31
|
44
|
36
|
47
|
39
|
40
|
42
|
31
|
32
|
28
|
44
|
50
|
65
|
86
|
84
|
86
|
63
|
36
|
26
|
|
|
2024/08
|
39
|
39
|
29
|
29
|
30
|
33
|
24
|
30
|
48
|
123
|
50
|
34
|
36
|
40
|
35
|
40
|
44
|
38
|
31
|
34
|
31
|
39
|
46
|
48
|
39
|
22
|
22
|
29
|
32
|
32
|
34
|
|
2024/07
|
27
|
39
|
41
|
39
|
30
|
36
|
36
|
25
|
32
|
47
|
48
|
46
|
53
|
53
|
35
|
26
|
24
|
21
|
26
|
18
|
30
|
25
|
34
|
44
|
68
|
58
|
41
|
52
|
33
|
20
|
38
|
|
2024/06
|
65
|
47
|
56
|
42
|
33
|
49
|
52
|
56
|
54
|
53
|
66
|
65
|
58
|
52
|
59
|
49
|
39
|
38
|
38
|
40
|
33
|
53
|
63
|
96
|
91
|
81
|
64
|
62
|
54
|
50
|
|
|
2024/05
|
40
|
40
|
42
|
43
|
48
|
45
|
54
|
58
|
58
|
47
|
123
|
65
|
65
|
63
|
77
|
58
|
70
|
67
|
50
|
55
|
57
|
55
|
51
|
58
|
68
|
55
|
55
|
51
|
39
|
55
|
75
|
|
2024/04
|
65
|
60
|
52
|
65
|
64
|
77
|
73
|
66
|
60
|
56
|
52
|
51
|
51
|
45
|
87
|
77
|
70
|
64
|
82
|
95
|
97
|
86
|
173
|
94
|
76
|
63
|
62
|
63
|
52
|
33
|
|
|
2024/03
|
48
|
57
|
66
|
71
|
113
|
67
|
87
|
65
|
77
|
84
|
75
|
68
|
84
|
74
|
69
|
208
|
123
|
94
|
133
|
91
|
80
|
113
|
99
|
43
|
40
|
61
|
69
|
75
|
71
|
70
|
76
|
|
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