Air Quality
Excellent
No health implications.
3
PM2.5
12
PM10
46
O3
0.2
CO
6
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
51
Good
Tue
28 Jul
56
Good
Wed
29 Jul
48
Excellent
Thu
30 Jul
46
Excellent
Fri
31 Jul
42
Excellent
Sat
1 Aug
54
Good
Sun
2 Aug
18
Excellent
Air quality in the last 12 months (Aihui)
|
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
|
|
|
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
|
|
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