Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
30
PM2.5
60
*
PM10
150
O3
0.3
CO
3
SO2
11
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
12 May
102
Light
Tue
13 May
100
Good
Wed
14 May
101
Light
Thu
15 May
104
Light
Fri
16 May
107
Light
Sat
17 May
129
Light
Sun
18 May
46
Excellent
Air quality in the last 12 months (Chengwu)
|
2025/02
|
111
|
147
|
134
|
67
|
57
|
76
|
69
|
41
|
59
|
70
|
103
|
135
|
102
|
82
|
90
|
74
|
63
|
74
|
77
|
62
|
70
|
102
|
78
|
51
|
73
|
103
|
105
|
111
|
|||
|
2025/01
|
152
|
128
|
108
|
171
|
144
|
63
|
63
|
62
|
52
|
60
|
94
|
79
|
92
|
157
|
60
|
70
|
90
|
113
|
129
|
119
|
176
|
195
|
109
|
160
|
125
|
83
|
43
|
60
|
221
|
126
|
105
|
|
2024/12
|
86
|
82
|
71
|
123
|
171
|
175
|
88
|
53
|
60
|
109
|
117
|
88
|
99
|
87
|
70
|
88
|
101
|
45
|
60
|
95
|
61
|
54
|
78
|
111
|
160
|
132
|
73
|
78
|
73
|
105
|
115
|
|
2024/11
|
138
|
87
|
111
|
75
|
55
|
68
|
58
|
48
|
57
|
71
|
132
|
132
|
112
|
83
|
91
|
75
|
56
|
49
|
45
|
64
|
103
|
110
|
67
|
54
|
51
|
46
|
58
|
53
|
51
|
68
|
|
|
2024/10
|
44
|
32
|
43
|
51
|
48
|
54
|
90
|
75
|
84
|
104
|
64
|
96
|
88
|
110
|
131
|
97
|
51
|
16
|
31
|
34
|
55
|
79
|
81
|
65
|
92
|
80
|
128
|
109
|
130
|
134
|
121
|
|
2024/09
|
42
|
35
|
38
|
43
|
46
|
29
|
44
|
42
|
38
|
41
|
32
|
31
|
49
|
53
|
39
|
51
|
44
|
12
|
39
|
44
|
21
|
33
|
49
|
46
|
55
|
67
|
76
|
45
|
44
|
30
|
|
|
2024/08
|
23
|
18
|
25
|
25
|
15
|
10
|
26
|
17
|
34
|
59
|
94
|
44
|
42
|
46
|
35
|
46
|
44
|
37
|
16
|
27
|
39
|
39
|
46
|
53
|
53
|
38
|
20
|
33
|
39
|
34
|
42
|
|
2024/07
|
35
|
34
|
33
|
16
|
22
|
16
|
21
|
15
|
32
|
64
|
56
|
46
|
61
|
41
|
34
|
13
|
20
|
28
|
22
|
12
|
26
|
27
|
28
|
39
|
41
|
28
|
18
|
11
|
17
|
20
|
21
|
|
2024/06
|
51
|
79
|
93
|
84
|
74
|
67
|
56
|
61
|
56
|
61
|
54
|
58
|
66
|
58
|
55
|
48
|
41
|
48
|
52
|
55
|
45
|
50
|
72
|
104
|
88
|
55
|
58
|
43
|
24
|
28
|
|
|
2024/05
|
50
|
50
|
53
|
47
|
64
|
70
|
61
|
57
|
56
|
66
|
190
|
110
|
89
|
74
|
76
|
63
|
68
|
66
|
60
|
64
|
53
|
47
|
46
|
64
|
66
|
58
|
41
|
46
|
55
|
69
|
90
|
|
2024/04
|
76
|
93
|
62
|
45
|
60
|
57
|
57
|
65
|
84
|
85
|
57
|
59
|
58
|
25
|
45
|
83
|
87
|
72
|
75
|
75
|
78
|
73
|
85
|
91
|
77
|
71
|
53
|
49
|
64
|
54
|
|
|
2024/03
|
68
|
86
|
81
|
101
|
127
|
83
|
108
|
50
|
54
|
89
|
94
|
91
|
79
|
65
|
55
|
94
|
116
|
83
|
100
|
87
|
86
|
88
|
81
|
59
|
51
|
54
|
59
|
89
|
76
|
86
|
83
|
|
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