Air Quality
Excellent
No health implications.
17
PM2.5
34
PM10
149
O3
0.3
CO
7
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Jun
114
Light
Tue
17 Jun
122
Light
Wed
18 Jun
54
Good
Thu
19 Jun
62
Good
Fri
20 Jun
75
Good
Sat
21 Jun
71
Good
Sun
22 Jun
17
Excellent
Air quality in the last 12 months (Weiyuan)
|
2025/05
|
45
|
65
|
72
|
88
|
41
|
56
|
34
|
48
|
102
|
79
|
62
|
111
|
93
|
110
|
77
|
62
|
73
|
82
|
60
|
62
|
48
|
47
|
58
|
54
|
51
|
42
|
39
|
21
|
22
|
36
|
30
|
|
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
|
|
|
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