Air Quality
Excellent
No health implications.
16
PM2.5
24
PM10
43
O3
0.5
CO
8
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Jan
48
Excellent
Mon
20 Jan
57
Good
Tue
21 Jan
52
Good
Wed
22 Jan
55
Good
Thu
23 Jan
42
Excellent
Fri
24 Jan
50
Excellent
Sat
25 Jan
49
Excellent
Air quality in the last 12 months (Aihui)
|
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
|
|
2024/06
|
30
|
39
|
31
|
27
|
21
|
29
|
32
|
18
|
24
|
27
|
29
|
24
|
28
|
25
|
28
|
20
|
22
|
30
|
26
|
24
|
24
|
21
|
24
|
32
|
35
|
34
|
36
|
40
|
46
|
44
|
|
|
2024/05
|
34
|
35
|
55
|
46
|
25
|
32
|
29
|
44
|
23
|
34
|
39
|
44
|
29
|
25
|
17
|
23
|
30
|
30
|
21
|
30
|
30
|
24
|
24
|
25
|
26
|
32
|
51
|
63
|
28
|
30
|
31
|
|
2024/04
|
20
|
24
|
25
|
29
|
34
|
20
|
27
|
24
|
22
|
43
|
39
|
94
|
40
|
51
|
66
|
25
|
22
|
24
|
24
|
44
|
83
|
50
|
30
|
27
|
24
|
23
|
22
|
23
|
25
|
32
|
|
|
2024/03
|
20
|
22
|
19
|
25
|
27
|
28
|
22
|
24
|
22
|
36
|
27
|
23
|
38
|
39
|
30
|
22
|
23
|
26
|
26
|
25
|
25
|
30
|
31
|
22
|
22
|
28
|
45
|
103
|
34
|
22
|
17
|
|
2024/02
|
24
|
28
|
33
|
27
|
35
|
32
|
29
|
26
|
76
|
78
|
53
|
44
|
41
|
29
|
31
|
26
|
49
|
39
|
25
|
23
|
24
|
28
|
23
|
62
|
47
|
36
|
36
|
32
|
26
|
||
|
2024/01
|
33
|
33
|
60
|
34
|
28
|
23
|
23
|
37
|
26
|
35
|
25
|
24
|
34
|
28
|
25
|
30
|
28
|
31
|
31
|
27
|
22
|
31
|
44
|
27
|
41
|
46
|
51
|
39
|
32
|
31
|
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