Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
36
PM2.5
55
*
PM10
131
O3
0.6
CO
5
SO2
17
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
30 May
99
Good
Sat
31 May
82
Good
Sun
1 Jun
75
Good
Mon
2 Jun
87
Good
Tue
3 Jun
91
Good
Wed
4 Jun
102
Light
Thu
5 Jun
37
Excellent
Air quality in the last 12 months (Chengcheng)
|
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
|
|
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
|
|
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