Air Quality
Excellent
No health implications.
22
PM2.5
38
PM10
147
O3
0.5
CO
4
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
2 Jul
130
Light
Fri
3 Jul
134
Light
Sat
4 Jul
132
Light
Sun
5 Jul
145
Light
Mon
6 Jul
112
Light
Tue
7 Jul
98
Good
Wed
8 Jul
50
Excellent
Air quality in the last 12 months (Chengwu)
|
2026/05
|
49
|
35
|
33
|
45
|
49
|
50
|
57
|
39
|
42
|
47
|
52
|
59
|
56
|
78
|
45
|
48
|
48
|
26
|
31
|
23
|
31
|
43
|
43
|
43
|
24
|
18
|
35
|
45
|
40
|
56
|
69
|
|
2026/04
|
55
|
58
|
57
|
63
|
82
|
71
|
63
|
43
|
40
|
59
|
60
|
56
|
36
|
40
|
54
|
60
|
76
|
74
|
67
|
79
|
61
|
35
|
42
|
39
|
42
|
49
|
86
|
52
|
46
|
52
|
|
|
2026/03
|
74
|
82
|
122
|
128
|
72
|
69
|
71
|
78
|
117
|
118
|
138
|
193
|
122
|
117
|
71
|
128
|
111
|
72
|
57
|
91
|
107
|
107
|
111
|
98
|
92
|
74
|
81
|
78
|
62
|
83
|
82
|
|
2026/02
|
119
|
160
|
136
|
116
|
172
|
62
|
59
|
63
|
60
|
86
|
134
|
94
|
116
|
105
|
109
|
50
|
134
|
89
|
89
|
69
|
60
|
324
|
101
|
46
|
55
|
71
|
121
|
119
|
|||
|
2026/01
|
44
|
67
|
101
|
114
|
248
|
129
|
61
|
64
|
69
|
93
|
53
|
71
|
111
|
188
|
110
|
117
|
66
|
52
|
50
|
33
|
51
|
78
|
110
|
153
|
186
|
154
|
203
|
116
|
110
|
123
|
126
|
|
2025/12
|
129
|
80
|
55
|
94
|
102
|
124
|
100
|
78
|
79
|
99
|
153
|
44
|
68
|
81
|
65
|
146
|
186
|
157
|
198
|
167
|
75
|
42
|
79
|
99
|
68
|
52
|
83
|
114
|
174
|
166
|
72
|
|
2025/11
|
110
|
88
|
59
|
81
|
99
|
73
|
66
|
99
|
77
|
71
|
60
|
76
|
111
|
165
|
173
|
153
|
42
|
54
|
62
|
88
|
156
|
100
|
87
|
116
|
53
|
107
|
236
|
124
|
103
|
140
|
|
|
2025/10
|
30
|
9
|
24
|
33
|
15
|
14
|
40
|
51
|
14
|
15
|
20
|
21
|
27
|
38
|
43
|
50
|
27
|
39
|
42
|
43
|
43
|
61
|
80
|
78
|
88
|
97
|
106
|
91
|
69
|
80
|
193
|
|
2025/09
|
24
|
34
|
39
|
45
|
48
|
33
|
50
|
23
|
24
|
37
|
27
|
19
|
43
|
31
|
25
|
16
|
22
|
22
|
13
|
27
|
42
|
28
|
18
|
25
|
38
|
35
|
25
|
20
|
38
|
36
|
|
|
2025/08
|
26
|
25
|
24
|
35
|
34
|
29
|
31
|
30
|
20
|
23
|
20
|
21
|
26
|
29
|
31
|
25
|
32
|
33
|
34
|
24
|
26
|
28
|
20
|
34
|
38
|
36
|
33
|
36
|
31
|
38
|
23
|
|
2025/07
|
24
|
30
|
20
|
25
|
31
|
35
|
39
|
34
|
23
|
50
|
55
|
37
|
40
|
41
|
40
|
42
|
35
|
35
|
44
|
33
|
21
|
24
|
23
|
28
|
29
|
29
|
27
|
27
|
19
|
33
|
35
|
|
2025/06
|
48
|
48
|
58
|
69
|
65
|
63
|
70
|
84
|
60
|
59
|
58
|
47
|
44
|
53
|
48
|
47
|
49
|
44
|
21
|
30
|
46
|
35
|
43
|
46
|
59
|
29
|
32
|
23
|
12
|
17
|
|
|
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