Air Quality
Excellent
No health implications.
21
PM2.5
48
PM10
126
O3
0.2
CO
6
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 May
79
Good
Sun
25 May
75
Good
Mon
26 May
87
Good
Tue
27 May
52
Good
Wed
28 May
67
Good
Thu
29 May
78
Good
Fri
30 May
40
Excellent
Air quality in the last 12 months (Weiyuan)
|
2025/04
|
43
|
61
|
59
|
56
|
49
|
50
|
55
|
55
|
58
|
67
|
51
|
257
|
169
|
129
|
121
|
87
|
74
|
68
|
63
|
46
|
50
|
58
|
64
|
40
|
45
|
33
|
42
|
53
|
37
|
28
|
|
|
2025/03
|
89
|
83
|
37
|
37
|
36
|
19
|
38
|
43
|
55
|
75
|
71
|
72
|
53
|
55
|
36
|
36
|
25
|
39
|
39
|
47
|
56
|
69
|
72
|
61
|
57
|
63
|
117
|
85
|
35
|
22
|
30
|
|
2025/02
|
43
|
46
|
45
|
50
|
46
|
33
|
30
|
32
|
46
|
56
|
67
|
57
|
54
|
51
|
60
|
69
|
81
|
89
|
66
|
58
|
62
|
52
|
49
|
35
|
45
|
54
|
68
|
87
|
|||
|
2025/01
|
106
|
144
|
149
|
145
|
126
|
103
|
87
|
50
|
55
|
57
|
48
|
55
|
99
|
91
|
80
|
85
|
88
|
78
|
87
|
106
|
126
|
181
|
208
|
127
|
35
|
62
|
65
|
81
|
177
|
115
|
85
|
|
2024/12
|
94
|
137
|
136
|
115
|
53
|
38
|
38
|
19
|
46
|
55
|
60
|
69
|
51
|
48
|
53
|
73
|
94
|
137
|
118
|
111
|
120
|
107
|
80
|
80
|
79
|
82
|
107
|
87
|
85
|
74
|
83
|
|
2024/11
|
44
|
49
|
63
|
59
|
50
|
65
|
61
|
66
|
79
|
59
|
44
|
57
|
44
|
55
|
65
|
44
|
21
|
19
|
20
|
26
|
44
|
48
|
68
|
51
|
21
|
24
|
37
|
58
|
72
|
76
|
|
|
2024/10
|
21
|
26
|
21
|
35
|
47
|
47
|
49
|
58
|
73
|
67
|
44
|
40
|
36
|
44
|
59
|
126
|
23
|
31
|
33
|
18
|
17
|
26
|
44
|
61
|
62
|
45
|
28
|
57
|
70
|
67
|
75
|
|
2024/09
|
28
|
38
|
42
|
37
|
30
|
29
|
35
|
31
|
32
|
29
|
23
|
33
|
53
|
45
|
41
|
38
|
37
|
51
|
54
|
55
|
25
|
35
|
60
|
69
|
75
|
72
|
79
|
87
|
65
|
11
|
|
|
2024/08
|
39
|
34
|
27
|
21
|
22
|
33
|
36
|
38
|
44
|
27
|
40
|
54
|
51
|
55
|
56
|
33
|
42
|
39
|
48
|
53
|
54
|
66
|
62
|
59
|
47
|
51
|
50
|
56
|
46
|
53
|
58
|
|
2024/07
|
21
|
21
|
29
|
31
|
26
|
28
|
40
|
27
|
15
|
12
|
18
|
22
|
30
|
11
|
20
|
28
|
29
|
17
|
22
|
21
|
30
|
20
|
34
|
29
|
30
|
45
|
40
|
26
|
21
|
22
|
37
|
|
2024/06
|
56
|
39
|
54
|
30
|
28
|
40
|
29
|
28
|
38
|
37
|
34
|
26
|
36
|
48
|
47
|
49
|
25
|
43
|
34
|
21
|
23
|
23
|
29
|
31
|
28
|
26
|
17
|
21
|
23
|
29
|
|
|
2024/05
|
50
|
46
|
36
|
30
|
36
|
81
|
98
|
88
|
52
|
62
|
59
|
45
|
44
|
52
|
54
|
43
|
62
|
47
|
32
|
24
|
23
|
34
|
39
|
48
|
55
|
22
|
38
|
31
|
29
|
26
|
37
|
|
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