Air Quality
Excellent
No health implications.
18
PM2.5
35
PM10
35
O3
0.2
CO
6
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Oct
93
Good
Sat
24 Oct
57
Good
Sun
25 Oct
59
Good
Mon
26 Oct
51
Good
Tue
27 Oct
57
Good
Wed
28 Oct
49
Excellent
Thu
29 Oct
21
Excellent
Air quality in the last 12 months (Aihui)
|
2026/08
|
25
|
28
|
21
|
20
|
29
|
30
|
37
|
23
|
26
|
27
|
28
|
23
|
20
|
23
|
26
|
21
|
24
|
25
|
28
|
26
|
22
|
28
|
27
|
20
|
25
|
22
|
23
|
25
|
20
|
18
|
18
|
|
2026/07
|
33
|
28
|
25
|
24
|
21
|
16
|
18
|
19
|
15
|
21
|
26
|
24
|
22
|
21
|
20
|
15
|
14
|
19
|
21
|
21
|
22
|
24
|
23
|
34
|
21
|
16
|
16
|
21
|
21
|
27
|
19
|
|
2026/06
|
27
|
20
|
27
|
16
|
19
|
14
|
15
|
20
|
24
|
30
|
31
|
29
|
21
|
24
|
28
|
30
|
30
|
29
|
29
|
28
|
26
|
29
|
29
|
24
|
33
|
24
|
24
|
25
|
30
|
32
|
|
|
2026/05
|
26
|
24
|
28
|
29
|
26
|
25
|
25
|
32
|
25
|
49
|
28
|
63
|
83
|
75
|
49
|
38
|
35
|
55
|
33
|
29
|
36
|
39
|
27
|
27
|
26
|
26
|
23
|
26
|
27
|
23
|
36
|
|
2026/04
|
39
|
30
|
29
|
29
|
36
|
42
|
32
|
33
|
30
|
31
|
42
|
24
|
24
|
28
|
32
|
39
|
29
|
30
|
31
|
29
|
25
|
24
|
24
|
26
|
38
|
27
|
28
|
26
|
29
|
38
|
|
|
2026/03
|
44
|
37
|
41
|
27
|
29
|
30
|
30
|
48
|
30
|
36
|
32
|
38
|
29
|
28
|
32
|
30
|
40
|
34
|
44
|
34
|
31
|
39
|
32
|
37
|
57
|
44
|
35
|
27
|
24
|
27
|
58
|
|
2026/02
|
24
|
38
|
37
|
32
|
22
|
25
|
26
|
32
|
42
|
51
|
32
|
32
|
43
|
32
|
28
|
42
|
38
|
22
|
35
|
58
|
64
|
32
|
20
|
24
|
39
|
21
|
26
|
32
|
|||
|
2026/01
|
25
|
34
|
22
|
20
|
29
|
31
|
24
|
27
|
31
|
28
|
32
|
55
|
24
|
36
|
24
|
19
|
24
|
42
|
34
|
21
|
16
|
22
|
19
|
23
|
21
|
19
|
21
|
20
|
18
|
20
|
26
|
|
2025/12
|
22
|
21
|
20
|
27
|
34
|
37
|
31
|
22
|
25
|
23
|
21
|
28
|
29
|
38
|
29
|
27
|
26
|
39
|
44
|
25
|
32
|
40
|
42
|
40
|
22
|
23
|
29
|
58
|
56
|
29
|
22
|
|
2025/11
|
25
|
23
|
33
|
69
|
24
|
22
|
23
|
22
|
67
|
30
|
28
|
38
|
22
|
28
|
26
|
25
|
24
|
24
|
34
|
23
|
21
|
48
|
39
|
27
|
26
|
37
|
38
|
28
|
41
|
26
|
|
|
2025/10
|
28
|
30
|
31
|
27
|
22
|
24
|
22
|
31
|
32
|
30
|
24
|
24
|
31
|
25
|
24
|
26
|
24
|
25
|
23
|
24
|
24
|
29
|
33
|
42
|
113
|
71
|
47
|
26
|
37
|
30
|
22
|
|
2025/09
|
24
|
28
|
21
|
30
|
28
|
25
|
23
|
26
|
16
|
20
|
25
|
20
|
31
|
17
|
21
|
22
|
21
|
22
|
20
|
26
|
23
|
25
|
32
|
26
|
20
|
24
|
27
|
30
|
33
|
41
|
|
|
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