Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
49
PM2.5
103
*
PM10
53
O3
0.8
CO
12
SO2
44
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
31 Mar
62
Good
Tue
1 Apr
72
Good
Wed
2 Apr
72
Good
Thu
3 Apr
81
Good
Fri
4 Apr
73
Good
Sat
5 Apr
74
Good
Sun
6 Apr
31
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