Air Quality
Excellent
No health implications.
17
PM2.5
31
PM10
63
O3
0.4
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Sep
69
Good
Sat
13 Sep
67
Good
Sun
14 Sep
65
Good
Mon
15 Sep
75
Good
Tue
16 Sep
60
Good
Wed
17 Sep
36
Excellent
Thu
18 Sep
22
Excellent
Air quality in the last 12 months (Weiyuan)
|
2025/08
|
44
|
32
|
30
|
21
|
25
|
32
|
29
|
24
|
26
|
33
|
41
|
34
|
39
|
37
|
38
|
37
|
35
|
31
|
26
|
57
|
23
|
30
|
26
|
35
|
29
|
24
|
24
|
22
|
27
|
37
|
38
|
|
2025/07
|
36
|
29
|
27
|
21
|
28
|
26
|
27
|
25
|
34
|
34
|
29
|
28
|
30
|
31
|
42
|
48
|
41
|
31
|
74
|
27
|
27
|
27
|
24
|
28
|
24
|
28
|
30
|
30
|
31
|
24
|
34
|
|
2025/06
|
36
|
43
|
36
|
34
|
42
|
46
|
47
|
52
|
32
|
43
|
42
|
40
|
41
|
41
|
61
|
44
|
50
|
47
|
39
|
45
|
38
|
22
|
29
|
26
|
26
|
34
|
27
|
34
|
38
|
26
|
|
|
2025/05
|
58
|
103
|
120
|
122
|
75
|
117
|
84
|
60
|
61
|
49
|
44
|
59
|
74
|
49
|
41
|
53
|
109
|
53
|
61
|
53
|
58
|
80
|
55
|
43
|
30
|
51
|
34
|
30
|
31
|
94
|
66
|
|
2025/04
|
103
|
100
|
81
|
108
|
87
|
66
|
55
|
89
|
114
|
73
|
106
|
371
|
110
|
70
|
61
|
133
|
76
|
240
|
141
|
101
|
107
|
86
|
59
|
53
|
55
|
40
|
56
|
53
|
56
|
87
|
|
|
2025/03
|
61
|
52
|
52
|
58
|
49
|
51
|
67
|
66
|
58
|
52
|
181
|
101
|
87
|
48
|
50
|
54
|
49
|
45
|
55
|
58
|
55
|
55
|
64
|
46
|
65
|
374
|
116
|
84
|
78
|
88
|
79
|
|
2025/02
|
57
|
60
|
52
|
51
|
50
|
49
|
57
|
65
|
65
|
58
|
81
|
83
|
72
|
70
|
62
|
63
|
64
|
54
|
65
|
56
|
48
|
56
|
50
|
50
|
54
|
53
|
51
|
54
|
|||
|
2025/01
|
70
|
72
|
76
|
70
|
76
|
72
|
62
|
69
|
71
|
61
|
66
|
70
|
69
|
70
|
69
|
65
|
66
|
69
|
74
|
73
|
77
|
79
|
74
|
72
|
66
|
73
|
78
|
88
|
119
|
76
|
59
|
|
2024/12
|
65
|
69
|
62
|
53
|
60
|
62
|
53
|
50
|
47
|
55
|
56
|
49
|
50
|
62
|
69
|
64
|
70
|
60
|
66
|
71
|
68
|
76
|
82
|
79
|
85
|
75
|
62
|
72
|
66
|
64
|
64
|
|
2024/11
|
49
|
45
|
54
|
56
|
54
|
46
|
41
|
39
|
52
|
54
|
52
|
53
|
58
|
50
|
56
|
41
|
44
|
34
|
43
|
52
|
55
|
49
|
44
|
41
|
42
|
54
|
58
|
64
|
62
|
65
|
|
|
2024/10
|
31
|
38
|
33
|
33
|
38
|
49
|
43
|
39
|
42
|
43
|
38
|
30
|
36
|
32
|
35
|
36
|
33
|
46
|
39
|
34
|
43
|
44
|
52
|
41
|
46
|
43
|
48
|
51
|
44
|
38
|
38
|
|
2024/09
|
49
|
38
|
34
|
25
|
21
|
25
|
26
|
34
|
27
|
27
|
26
|
29
|
23
|
30
|
28
|
26
|
30
|
31
|
29
|
36
|
29
|
37
|
39
|
37
|
31
|
30
|
39
|
46
|
30
|
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