Air Quality
Excellent
No health implications.
11
PM2.5
45
PM10
139
O3
0.7
CO
6
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
94
Good
Sun
24 May
58
Good
Mon
25 May
55
Good
Tue
26 May
57
Good
Wed
27 May
83
Good
Thu
28 May
69
Good
Fri
29 May
22
Excellent
Air quality in the last 12 months (Weicheng)
|
2026/04
|
77
|
62
|
69
|
39
|
62
|
37
|
39
|
45
|
41
|
68
|
56
|
43
|
37
|
76
|
85
|
53
|
72
|
88
|
80
|
80
|
67
|
37
|
45
|
52
|
52
|
64
|
82
|
35
|
49
|
54
|
|
|
2026/03
|
98
|
123
|
130
|
108
|
73
|
45
|
38
|
56
|
65
|
87
|
109
|
63
|
76
|
100
|
46
|
70
|
63
|
51
|
46
|
99
|
117
|
111
|
130
|
100
|
93
|
101
|
101
|
100
|
103
|
72
|
54
|
|
2026/02
|
214
|
150
|
112
|
141
|
157
|
33
|
41
|
63
|
71
|
67
|
135
|
115
|
108
|
117
|
78
|
83
|
218
|
79
|
89
|
79
|
88
|
101
|
58
|
53
|
75
|
66
|
83
|
75
|
|||
|
2026/01
|
36
|
51
|
103
|
218
|
122
|
160
|
68
|
60
|
88
|
78
|
38
|
75
|
89
|
108
|
176
|
122
|
40
|
37
|
33
|
37
|
47
|
69
|
100
|
153
|
72
|
86
|
112
|
132
|
116
|
50
|
134
|
|
2025/12
|
65
|
31
|
50
|
58
|
57
|
105
|
114
|
49
|
112
|
105
|
61
|
25
|
53
|
66
|
79
|
115
|
64
|
77
|
138
|
82
|
32
|
48
|
62
|
87
|
31
|
39
|
65
|
120
|
143
|
81
|
30
|
|
2025/11
|
105
|
40
|
35
|
60
|
73
|
58
|
91
|
91
|
104
|
63
|
74
|
94
|
82
|
86
|
161
|
113
|
37
|
53
|
60
|
65
|
79
|
111
|
120
|
152
|
40
|
81
|
100
|
111
|
132
|
165
|
|
|
2025/10
|
46
|
20
|
14
|
38
|
10
|
12
|
40
|
39
|
28
|
11
|
21
|
27
|
30
|
58
|
42
|
45
|
47
|
21
|
26
|
28
|
36
|
41
|
48
|
48
|
76
|
84
|
51
|
84
|
57
|
49
|
63
|
|
2025/09
|
29
|
37
|
35
|
41
|
30
|
35
|
48
|
72
|
53
|
51
|
33
|
27
|
35
|
46
|
45
|
32
|
16
|
25
|
17
|
39
|
45
|
47
|
44
|
35
|
54
|
59
|
38
|
39
|
71
|
69
|
|
|
2025/08
|
13
|
19
|
20
|
24
|
34
|
23
|
25
|
30
|
11
|
17
|
30
|
31
|
36
|
32
|
24
|
25
|
13
|
34
|
37
|
39
|
38
|
36
|
28
|
34
|
46
|
26
|
27
|
26
|
16
|
18
|
15
|
|
2025/07
|
30
|
29
|
31
|
27
|
29
|
28
|
38
|
19
|
24
|
31
|
39
|
28
|
43
|
23
|
30
|
26
|
30
|
29
|
34
|
22
|
15
|
17
|
15
|
19
|
22
|
22
|
22
|
25
|
20
|
23
|
22
|
|
2025/06
|
48
|
37
|
42
|
30
|
51
|
57
|
64
|
54
|
56
|
23
|
32
|
35
|
25
|
23
|
33
|
33
|
33
|
47
|
21
|
16
|
35
|
50
|
38
|
37
|
56
|
62
|
50
|
45
|
17
|
22
|
|
|
2025/05
|
66
|
53
|
39
|
45
|
40
|
52
|
58
|
52
|
29
|
34
|
49
|
53
|
57
|
66
|
45
|
67
|
64
|
43
|
77
|
74
|
64
|
65
|
40
|
56
|
43
|
57
|
50
|
49
|
47
|
50
|
58
|
|
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