Air Quality
Excellent
No health implications.
7
PM2.5
36
PM10
58
O3
0.3
CO
5
SO2
24
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jul
101
Light
Wed
30 Jul
108
Light
Thu
31 Jul
104
Light
Fri
1 Aug
91
Good
Sat
2 Aug
113
Light
Sun
3 Aug
17
Excellent
Mon
4 Aug
35
Excellent
Air quality in the last 12 months (Weicheng)
|
2025/06
|
46
|
46
|
50
|
53
|
41
|
51
|
39
|
42
|
47
|
53
|
59
|
50
|
50
|
60
|
78
|
64
|
62
|
45
|
35
|
35
|
46
|
39
|
40
|
41
|
32
|
32
|
40
|
27
|
39
|
27
|
|
|
2025/05
|
109
|
80
|
90
|
96
|
147
|
488
|
220
|
120
|
99
|
53
|
54
|
61
|
46
|
76
|
78
|
66
|
216
|
124
|
75
|
75
|
74
|
94
|
61
|
53
|
44
|
38
|
58
|
56
|
48
|
53
|
49
|
|
2025/04
|
85
|
94
|
89
|
106
|
94
|
98
|
79
|
101
|
118
|
97
|
143
|
320
|
160
|
88
|
62
|
137
|
116
|
140
|
96
|
70
|
71
|
177
|
105
|
73
|
71
|
77
|
49
|
51
|
65
|
136
|
|
|
2025/03
|
193
|
71
|
34
|
55
|
79
|
83
|
86
|
100
|
72
|
86
|
235
|
266
|
98
|
54
|
53
|
48
|
60
|
50
|
55
|
62
|
74
|
80
|
93
|
72
|
60
|
203
|
204
|
132
|
94
|
80
|
81
|
|
2025/02
|
203
|
168
|
33
|
59
|
45
|
61
|
84
|
35
|
55
|
101
|
131
|
83
|
91
|
94
|
77
|
79
|
89
|
91
|
105
|
107
|
132
|
146
|
77
|
73
|
86
|
83
|
118
|
138
|
|||
|
2025/01
|
116
|
96
|
85
|
148
|
115
|
73
|
71
|
98
|
50
|
85
|
74
|
76
|
118
|
100
|
39
|
74
|
96
|
113
|
133
|
178
|
184
|
213
|
174
|
129
|
63
|
87
|
57
|
100
|
236
|
280
|
293
|
|
2024/12
|
95
|
95
|
62
|
83
|
65
|
92
|
75
|
48
|
89
|
113
|
153
|
134
|
52
|
69
|
85
|
110
|
118
|
97
|
90
|
131
|
56
|
64
|
97
|
99
|
128
|
114
|
74
|
53
|
82
|
76
|
79
|
|
2024/11
|
86
|
77
|
68
|
59
|
72
|
118
|
140
|
166
|
118
|
164
|
173
|
161
|
108
|
63
|
52
|
59
|
26
|
32
|
61
|
64
|
66
|
96
|
156
|
126
|
41
|
58
|
83
|
83
|
60
|
71
|
|
|
2024/10
|
50
|
59
|
60
|
58
|
89
|
128
|
108
|
129
|
106
|
73
|
85
|
116
|
63
|
79
|
87
|
70
|
76
|
52
|
42
|
35
|
36
|
36
|
63
|
81
|
91
|
65
|
47
|
64
|
110
|
122
|
76
|
|
2024/09
|
71
|
55
|
45
|
51
|
34
|
56
|
37
|
37
|
55
|
56
|
56
|
43
|
42
|
39
|
59
|
45
|
53
|
51
|
38
|
34
|
30
|
52
|
58
|
92
|
152
|
136
|
85
|
67
|
37
|
38
|
|
|
2024/08
|
48
|
49
|
40
|
40
|
38
|
37
|
38
|
34
|
55
|
102
|
63
|
49
|
48
|
51
|
43
|
42
|
50
|
39
|
54
|
52
|
35
|
48
|
55
|
60
|
51
|
36
|
28
|
38
|
40
|
42
|
38
|
|
2024/07
|
25
|
35
|
37
|
42
|
46
|
47
|
37
|
14
|
25
|
41
|
39
|
51
|
47
|
52
|
43
|
29
|
15
|
19
|
32
|
25
|
39
|
35
|
40
|
75
|
82
|
70
|
49
|
50
|
44
|
28
|
41
|
|
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