Air Quality
Excellent
No health implications.
10
PM2.5
17
PM10
14
O3
0.1
CO
7
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Jul
52
Good
Wed
9 Jul
55
Good
Thu
10 Jul
58
Good
Fri
11 Jul
55
Good
Sat
12 Jul
48
Excellent
Sun
13 Jul
26
Excellent
Mon
14 Jul
22
Excellent
Air quality in the last 12 months (Aihui)
|
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
|
|
|
2024/08
|
33
|
26
|
25
|
23
|
17
|
28
|
31
|
20
|
21
|
26
|
23
|
26
|
24
|
28
|
37
|
35
|
22
|
22
|
34
|
35
|
29
|
24
|
29
|
28
|
23
|
19
|
22
|
24
|
26
|
24
|
20
|
|
2024/07
|
55
|
63
|
55
|
66
|
62
|
88
|
104
|
98
|
94
|
80
|
77
|
110
|
113
|
83
|
61
|
52
|
34
|
33
|
32
|
24
|
25
|
26
|
28
|
26
|
28
|
25
|
21
|
16
|
25
|
24
|
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