Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
40
*
PM2.5
57
PM10
18
O3
0.6
CO
11
SO2
26
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
27 Oct
59
Good
Tue
28 Oct
56
Good
Wed
29 Oct
53
Good
Thu
30 Oct
49
Excellent
Fri
31 Oct
63
Good
Sat
1 Nov
30
Excellent
Sun
2 Nov
17
Excellent
Air quality in the last 12 months (Aihui)
|
2025/08
|
18
|
21
|
19
|
24
|
20
|
17
|
22
|
23
|
20
|
12
|
22
|
22
|
22
|
19
|
18
|
19
|
20
|
25
|
20
|
23
|
28
|
21
|
15
|
24
|
28
|
26
|
29
|
30
|
26
|
19
|
21
|
|
2025/07
|
19
|
16
|
19
|
24
|
27
|
24
|
22
|
22
|
22
|
27
|
27
|
23
|
26
|
25
|
28
|
27
|
26
|
24
|
22
|
18
|
18
|
19
|
23
|
28
|
21
|
25
|
22
|
24
|
18
|
17
|
16
|
|
2025/06
|
25
|
27
|
24
|
18
|
18
|
19
|
21
|
19
|
21
|
24
|
31
|
30
|
19
|
19
|
29
|
30
|
26
|
30
|
25
|
20
|
17
|
22
|
32
|
32
|
38
|
36
|
33
|
41
|
32
|
27
|
|
|
2025/05
|
28
|
24
|
20
|
20
|
17
|
25
|
30
|
38
|
43
|
40
|
73
|
105
|
71
|
31
|
48
|
26
|
28
|
17
|
16
|
19
|
18
|
23
|
22
|
25
|
25
|
25
|
28
|
46
|
52
|
57
|
35
|
|
2025/04
|
39
|
49
|
40
|
39
|
41
|
26
|
45
|
34
|
36
|
28
|
29
|
20
|
17
|
24
|
23
|
26
|
32
|
44
|
28
|
27
|
23
|
45
|
45
|
26
|
17
|
20
|
28
|
20
|
32
|
34
|
|
|
2025/03
|
25
|
22
|
24
|
43
|
56
|
38
|
30
|
36
|
36
|
59
|
30
|
27
|
23
|
23
|
21
|
23
|
23
|
23
|
24
|
34
|
18
|
20
|
20
|
18
|
19
|
23
|
25
|
18
|
19
|
21
|
30
|
|
2025/02
|
37
|
54
|
21
|
20
|
19
|
20
|
19
|
18
|
23
|
26
|
48
|
59
|
25
|
28
|
42
|
21
|
20
|
21
|
21
|
18
|
19
|
19
|
17
|
24
|
37
|
26
|
31
|
36
|
|||
|
2025/01
|
55
|
69
|
48
|
34
|
39
|
23
|
27
|
23
|
23
|
28
|
34
|
82
|
72
|
26
|
32
|
28
|
48
|
48
|
43
|
38
|
45
|
43
|
47
|
70
|
86
|
45
|
26
|
28
|
30
|
23
|
25
|
|
2024/12
|
30
|
27
|
37
|
27
|
34
|
23
|
22
|
27
|
30
|
35
|
26
|
19
|
25
|
24
|
22
|
26
|
25
|
24
|
23
|
26
|
25
|
44
|
34
|
29
|
25
|
27
|
28
|
24
|
37
|
61
|
41
|
|
2024/11
|
25
|
24
|
28
|
21
|
22
|
24
|
48
|
152
|
141
|
68
|
22
|
24
|
33
|
50
|
28
|
26
|
22
|
24
|
35
|
41
|
31
|
24
|
29
|
99
|
75
|
26
|
29
|
25
|
23
|
24
|
|
|
2024/10
|
24
|
37
|
26
|
32
|
32
|
24
|
51
|
34
|
50
|
53
|
24
|
23
|
28
|
59
|
21
|
23
|
23
|
28
|
24
|
29
|
51
|
30
|
32
|
34
|
41
|
29
|
51
|
39
|
107
|
56
|
43
|
|
2024/09
|
24
|
24
|
24
|
22
|
20
|
21
|
30
|
23
|
37
|
37
|
21
|
26
|
19
|
21
|
26
|
29
|
28
|
24
|
20
|
20
|
21
|
30
|
28
|
30
|
26
|
29
|
30
|
33
|
21
|
22
|
|
|
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