Air Quality
Excellent
No health implications.
34
PM2.5
36
PM10
60
O3
0.5
CO
7
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 Feb
51
Good
Tue
10 Feb
54
Good
Wed
11 Feb
55
Good
Thu
12 Feb
55
Good
Fri
13 Feb
49
Excellent
Sat
14 Feb
15
Excellent
Sun
15 Feb
49
Excellent
Air quality in the last 12 months (Aihui)
|
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
|
|
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
|
|||
|
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