Air Quality
Excellent
No health implications.
4
PM2.5
14
PM10
29
O3
0.2
CO
5
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 Sep
55
Good
Sun
7 Sep
51
Good
Mon
8 Sep
57
Good
Tue
9 Sep
59
Good
Wed
10 Sep
57
Good
Thu
11 Sep
60
Good
Fri
12 Sep
47
Excellent
Air quality in the last 12 months (Weichang)
|
2025/08
|
27
|
36
|
24
|
21
|
18
|
19
|
14
|
19
|
15
|
17
|
21
|
15
|
15
|
17
|
23
|
17
|
18
|
21
|
21
|
17
|
16
|
13
|
16
|
16
|
16
|
12
|
12
|
13
|
18
|
21
|
20
|
|
2025/07
|
25
|
24
|
21
|
20
|
21
|
17
|
22
|
25
|
28
|
37
|
41
|
35
|
18
|
21
|
22
|
15
|
17
|
18
|
30
|
18
|
16
|
22
|
31
|
22
|
16
|
25
|
13
|
16
|
16
|
18
|
19
|
|
2025/06
|
31
|
28
|
25
|
21
|
23
|
21
|
18
|
25
|
29
|
18
|
28
|
45
|
31
|
39
|
16
|
17
|
26
|
39
|
26
|
19
|
17
|
25
|
31
|
43
|
50
|
48
|
47
|
28
|
35
|
26
|
|
|
2025/05
|
18
|
23
|
22
|
22
|
34
|
23
|
37
|
66
|
25
|
43
|
35
|
34
|
50
|
30
|
32
|
47
|
33
|
14
|
20
|
42
|
53
|
79
|
34
|
31
|
43
|
40
|
22
|
29
|
51
|
53
|
41
|
|
2025/04
|
23
|
17
|
31
|
48
|
16
|
30
|
49
|
28
|
36
|
34
|
60
|
71
|
40
|
28
|
39
|
56
|
47
|
18
|
16
|
37
|
44
|
34
|
53
|
25
|
25
|
48
|
23
|
23
|
48
|
30
|
|
|
2025/03
|
62
|
38
|
42
|
49
|
39
|
22
|
43
|
75
|
80
|
94
|
146
|
41
|
39
|
51
|
37
|
26
|
30
|
20
|
20
|
22
|
31
|
32
|
97
|
42
|
32
|
104
|
30
|
31
|
31
|
27
|
28
|
|
2025/02
|
78
|
65
|
18
|
17
|
23
|
33
|
19
|
13
|
18
|
34
|
64
|
31
|
43
|
37
|
70
|
23
|
21
|
24
|
18
|
20
|
16
|
23
|
15
|
22
|
29
|
31
|
58
|
61
|
|||
|
2025/01
|
39
|
21
|
25
|
34
|
33
|
18
|
19
|
18
|
15
|
21
|
32
|
26
|
25
|
24
|
25
|
43
|
41
|
38
|
31
|
42
|
30
|
35
|
72
|
86
|
107
|
73
|
15
|
22
|
101
|
28
|
60
|
|
2024/12
|
35
|
20
|
25
|
22
|
22
|
24
|
17
|
25
|
28
|
37
|
36
|
47
|
18
|
23
|
25
|
26
|
19
|
21
|
35
|
38
|
19
|
21
|
34
|
51
|
54
|
20
|
22
|
29
|
55
|
52
|
30
|
|
2024/11
|
70
|
60
|
34
|
20
|
25
|
29
|
57
|
101
|
96
|
59
|
43
|
47
|
53
|
53
|
46
|
32
|
23
|
31
|
48
|
43
|
20
|
25
|
43
|
72
|
47
|
21
|
27
|
18
|
19
|
22
|
|
|
2024/10
|
16
|
14
|
17
|
33
|
56
|
34
|
18
|
28
|
40
|
22
|
29
|
55
|
87
|
60
|
24
|
42
|
51
|
32
|
18
|
27
|
39
|
19
|
32
|
32
|
53
|
70
|
25
|
28
|
34
|
23
|
62
|
|
2024/09
|
17
|
17
|
21
|
27
|
19
|
21
|
18
|
23
|
23
|
16
|
24
|
26
|
21
|
15
|
18
|
19
|
20
|
20
|
35
|
15
|
16
|
16
|
19
|
31
|
28
|
21
|
36
|
45
|
46
|
11
|
|
|
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