Air Quality
Excellent
No health implications.
16
PM2.5
33
PM10
39
O3
0.5
CO
10
SO2
30
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Mar
55
Good
Mon
30 Mar
48
Excellent
Tue
31 Mar
58
Good
Wed
1 Apr
54
Good
Thu
2 Apr
57
Good
Fri
3 Apr
54
Good
Sat
4 Apr
49
Excellent
Air quality in the last 12 months (Aihui)
|
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
|
|
|
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
|
|
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