Air Quality
Excellent
No health implications.
13
PM2.5
18
PM10
84
O3
0.2
CO
2
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Apr
56
Good
Sun
28 Apr
61
Good
Mon
29 Apr
57
Good
Tue
30 Apr
54
Good
Wed
1 May
50
Excellent
Thu
2 May
60
Good
Fri
3 May
58
Good
Air quality in the last 12 months (Aihui)
|
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
|
|
2023/12
|
25
|
27
|
31
|
39
|
33
|
30
|
30
|
36
|
25
|
24
|
24
|
24
|
27
|
22
|
24
|
23
|
25
|
29
|
25
|
24
|
25
|
36
|
52
|
63
|
55
|
40
|
34
|
39
|
50
|
24
|
27
|
|
2023/11
|
58
|
51
|
25
|
27
|
28
|
22
|
27
|
30
|
48
|
27
|
21
|
20
|
28
|
29
|
28
|
53
|
21
|
23
|
20
|
26
|
32
|
22
|
21
|
23
|
21
|
25
|
24
|
25
|
24
|
25
|
|
|
2023/10
|
15
|
22
|
29
|
18
|
24
|
28
|
19
|
21
|
32
|
23
|
27
|
24
|
25
|
31
|
31
|
34
|
20
|
22
|
23
|
25
|
20
|
22
|
33
|
46
|
33
|
36
|
53
|
44
|
61
|
70
|
45
|
|
2023/09
|
16
|
21
|
19
|
13
|
20
|
26
|
22
|
32
|
17
|
17
|
15
|
17
|
20
|
19
|
21
|
24
|
19
|
12
|
27
|
18
|
18
|
20
|
17
|
21
|
19
|
21
|
20
|
18
|
20
|
17
|
|
|
2023/08
|
19
|
23
|
25
|
24
|
22
|
27
|
24
|
21
|
13
|
15
|
13
|
8
|
13
|
13
|
15
|
15
|
18
|
15
|
15
|
19
|
22
|
21
|
15
|
12
|
19
|
11
|
13
|
17
|
14
|
13
|
10
|
|
2023/07
|
19
|
21
|
20
|
27
|
22
|
23
|
19
|
26
|
28
|
49
|
87
|
81
|
87
|
47
|
23
|
23
|
29
|
47
|
37
|
27
|
14
|
15
|
16
|
28
|
159
|
122
|
32
|
21
|
19
|
17
|
15
|
|
2023/06
|
18
|
18
|
19
|
19
|
24
|
20
|
23
|
28
|
23
|
26
|
24
|
27
|
36
|
28
|
24
|
25
|
35
|
31
|
33
|
31
|
30
|
18
|
24
|
23
|
22
|
22
|
23
|
30
|
20
|
27
|
|
|
2023/05
|
24
|
44
|
46
|
29
|
30
|
34
|
27
|
22
|
22
|
25
|
28
|
33
|
23
|
27
|
29
|
27
|
19
|
24
|
29
|
21
|
22
|
28
|
29
|
32
|
52
|
41
|
17
|
20
|
19
|
19
|
20
|
|
2023/04
|
34
|
45
|
35
|
23
|
27
|
39
|
34
|
24
|
33
|
46
|
41
|
31
|
23
|
24
|
30
|
30
|
35
|
31
|
21
|
26
|
25
|
24
|
25
|
27
|
31
|
29
|
38
|
31
|
24
|
24
|
|
|
2023/03
|
27
|
27
|
28
|
40
|
40
|
26
|
25
|
21
|
22
|
25
|
25
|
24
|
21
|
26
|
32
|
23
|
22
|
25
|
28
|
25
|
95
|
153
|
55
|
24
|
22
|
25
|
28
|
25
|
34
|
26
|
31
|
|
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