Air Quality
Excellent
No health implications.
14
PM2.5
23
PM10
34
O3
0.8
CO
10
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Feb
41
Excellent
Sun
2 Feb
42
Excellent
Mon
3 Feb
51
Good
Tue
4 Feb
43
Excellent
Wed
5 Feb
53
Good
Thu
6 Feb
53
Good
Fri
7 Feb
38
Excellent
Air quality in the last 12 months (Yiyang)
|
2024/12
|
50
|
53
|
58
|
82
|
50
|
32
|
41
|
65
|
45
|
49
|
22
|
29
|
72
|
58
|
53
|
53
|
58
|
59
|
58
|
59
|
61
|
68
|
53
|
72
|
85
|
87
|
101
|
73
|
67
|
71
|
73
|
|
2024/11
|
20
|
34
|
42
|
53
|
64
|
48
|
36
|
39
|
40
|
42
|
42
|
48
|
48
|
43
|
24
|
24
|
24
|
25
|
31
|
35
|
40
|
32
|
59
|
46
|
35
|
30
|
41
|
46
|
54
|
49
|
|
|
2024/10
|
32
|
28
|
31
|
31
|
32
|
24
|
22
|
15
|
34
|
45
|
54
|
58
|
50
|
48
|
67
|
19
|
31
|
40
|
24
|
16
|
38
|
37
|
32
|
45
|
32
|
42
|
15
|
16
|
43
|
48
|
31
|
|
2024/09
|
46
|
55
|
50
|
42
|
36
|
34
|
34
|
37
|
32
|
33
|
35
|
21
|
34
|
39
|
34
|
35
|
26
|
22
|
35
|
39
|
26
|
19
|
22
|
20
|
37
|
40
|
30
|
29
|
38
|
37
|
|
|
2024/08
|
16
|
25
|
31
|
38
|
35
|
39
|
38
|
35
|
37
|
42
|
37
|
28
|
28
|
27
|
26
|
37
|
36
|
32
|
19
|
27
|
20
|
32
|
34
|
41
|
44
|
47
|
39
|
29
|
37
|
46
|
45
|
|
2024/07
|
26
|
25
|
24
|
23
|
25
|
21
|
23
|
21
|
24
|
29
|
31
|
27
|
26
|
28
|
32
|
32
|
23
|
21
|
21
|
26
|
32
|
28
|
33
|
29
|
20
|
17
|
18
|
16
|
21
|
24
|
22
|
|
2024/06
|
12
|
14
|
25
|
34
|
28
|
20
|
28
|
36
|
36
|
24
|
14
|
23
|
29
|
23
|
19
|
24
|
16
|
17
|
34
|
36
|
34
|
29
|
33
|
20
|
13
|
16
|
24
|
33
|
28
|
28
|
|
|
2024/05
|
12
|
32
|
42
|
26
|
15
|
27
|
42
|
45
|
56
|
56
|
47
|
39
|
58
|
50
|
49
|
58
|
50
|
51
|
51
|
34
|
23
|
27
|
29
|
22
|
24
|
23
|
20
|
17
|
32
|
43
|
30
|
|
2024/04
|
32
|
24
|
23
|
19
|
21
|
29
|
26
|
28
|
30
|
48
|
49
|
39
|
40
|
31
|
47
|
41
|
18
|
23
|
33
|
23
|
22
|
25
|
38
|
48
|
46
|
42
|
37
|
37
|
31
|
13
|
|
|
2024/03
|
32
|
38
|
38
|
40
|
26
|
22
|
32
|
53
|
61
|
61
|
58
|
55
|
69
|
53
|
51
|
50
|
35
|
34
|
51
|
61
|
54
|
54
|
46
|
37
|
34
|
20
|
40
|
30
|
44
|
48
|
22
|
|
2024/02
|
33
|
16
|
13
|
12
|
30
|
15
|
18
|
37
|
90
|
137
|
74
|
53
|
44
|
44
|
35
|
20
|
27
|
35
|
40
|
40
|
16
|
11
|
13
|
19
|
41
|
33
|
42
|
40
|
28
|
||
|
2024/01
|
101
|
109
|
57
|
50
|
54
|
58
|
87
|
113
|
99
|
44
|
56
|
60
|
56
|
60
|
122
|
71
|
59
|
70
|
26
|
17
|
44
|
27
|
33
|
38
|
44
|
50
|
54
|
53
|
58
|
36
|
44
|
|
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