Air Quality
Excellent
No health implications.
2
PM2.5
14
PM10
50
O3
0.3
CO
6
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Oct
58
Good
Tue
13 Oct
55
Good
Wed
14 Oct
55
Good
Thu
15 Oct
66
Good
Fri
16 Oct
55
Good
Sat
17 Oct
53
Good
Sun
18 Oct
38
Excellent
Air quality in the last 12 months (Weichang)
|
2026/08
|
25
|
26
|
24
|
21
|
23
|
25
|
20
|
23
|
27
|
32
|
35
|
21
|
21
|
22
|
23
|
20
|
20
|
22
|
26
|
34
|
37
|
38
|
31
|
31
|
26
|
23
|
24
|
23
|
21
|
20
|
20
|
|
2026/07
|
29
|
29
|
33
|
41
|
26
|
25
|
24
|
22
|
27
|
24
|
20
|
24
|
34
|
27
|
25
|
24
|
28
|
24
|
28
|
31
|
30
|
29
|
32
|
34
|
31
|
29
|
31
|
31
|
27
|
22
|
27
|
|
2026/06
|
32
|
40
|
19
|
16
|
16
|
16
|
17
|
17
|
18
|
19
|
21
|
32
|
34
|
24
|
38
|
37
|
27
|
33
|
48
|
25
|
20
|
28
|
26
|
22
|
23
|
26
|
33
|
43
|
40
|
32
|
|
|
2026/05
|
30
|
30
|
19
|
23
|
36
|
34
|
25
|
26
|
36
|
36
|
28
|
40
|
52
|
72
|
56
|
43
|
24
|
23
|
29
|
26
|
27
|
29
|
27
|
43
|
43
|
29
|
28
|
25
|
25
|
30
|
42
|
|
2026/04
|
24
|
43
|
67
|
38
|
39
|
24
|
23
|
40
|
31
|
31
|
43
|
41
|
33
|
50
|
57
|
50
|
36
|
50
|
104
|
90
|
29
|
34
|
42
|
43
|
42
|
36
|
26
|
21
|
23
|
30
|
|
|
2026/03
|
42
|
59
|
45
|
45
|
38
|
25
|
35
|
52
|
21
|
38
|
25
|
45
|
78
|
26
|
45
|
43
|
55
|
32
|
32
|
35
|
57
|
67
|
71
|
78
|
61
|
30
|
27
|
36
|
44
|
28
|
27
|
|
2026/02
|
20
|
18
|
31
|
46
|
35
|
14
|
14
|
18
|
29
|
43
|
20
|
46
|
39
|
41
|
19
|
23
|
68
|
21
|
35
|
63
|
225
|
33
|
25
|
43
|
73
|
40
|
35
|
34
|
|||
|
2026/01
|
30
|
37
|
51
|
41
|
24
|
27
|
23
|
40
|
60
|
19
|
17
|
41
|
22
|
51
|
58
|
32
|
20
|
29
|
23
|
17
|
19
|
24
|
31
|
25
|
22
|
34
|
22
|
40
|
38
|
46
|
31
|
|
2025/12
|
19
|
19
|
18
|
18
|
25
|
50
|
39
|
20
|
44
|
59
|
34
|
37
|
29
|
27
|
45
|
60
|
37
|
45
|
78
|
20
|
24
|
52
|
48
|
27
|
21
|
45
|
61
|
48
|
37
|
24
|
21
|
|
2025/11
|
21
|
17
|
34
|
44
|
62
|
63
|
52
|
44
|
13
|
17
|
29
|
53
|
17
|
28
|
51
|
28
|
15
|
21
|
21
|
20
|
21
|
30
|
62
|
47
|
23
|
39
|
22
|
43
|
48
|
30
|
|
|
2025/10
|
21
|
32
|
30
|
22
|
17
|
16
|
29
|
20
|
13
|
15
|
25
|
24
|
33
|
41
|
31
|
23
|
17
|
13
|
12
|
14
|
24
|
24
|
38
|
52
|
37
|
14
|
17
|
44
|
90
|
57
|
35
|
|
2025/09
|
17
|
19
|
33
|
32
|
31
|
14
|
12
|
14
|
23
|
16
|
30
|
36
|
38
|
14
|
10
|
12
|
15
|
13
|
15
|
19
|
20
|
26
|
16
|
15
|
17
|
21
|
21
|
23
|
20
|
17
|
|
|
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