Air Quality
Excellent
No health implications.
11
PM2.5
18
PM10
65
O3
0.3
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
70
Good
Wed
1 May
65
Good
Thu
2 May
68
Good
Fri
3 May
68
Good
Sat
4 May
69
Good
Sun
5 May
73
Good
Mon
6 May
73
Good
Air quality in the last 12 months (Yiliang)
|
2024/02
|
53
|
65
|
40
|
33
|
40
|
35
|
30
|
35
|
59
|
97
|
64
|
56
|
68
|
71
|
43
|
43
|
42
|
37
|
42
|
65
|
59
|
34
|
30
|
30
|
42
|
42
|
43
|
43
|
41
|
||
|
2024/01
|
93
|
57
|
48
|
64
|
68
|
69
|
78
|
74
|
73
|
66
|
59
|
82
|
97
|
93
|
71
|
59
|
50
|
49
|
58
|
59
|
35
|
25
|
37
|
28
|
38
|
39
|
41
|
49
|
61
|
73
|
50
|
|
2023/12
|
31
|
36
|
38
|
38
|
56
|
50
|
57
|
54
|
64
|
56
|
57
|
44
|
35
|
42
|
42
|
34
|
43
|
44
|
52
|
68
|
61
|
56
|
63
|
53
|
83
|
90
|
92
|
99
|
85
|
105
|
105
|
|
2023/11
|
61
|
60
|
56
|
30
|
37
|
40
|
50
|
58
|
58
|
60
|
64
|
33
|
23
|
33
|
24
|
43
|
67
|
64
|
62
|
63
|
62
|
38
|
60
|
67
|
56
|
44
|
58
|
57
|
54
|
49
|
|
|
2023/10
|
27
|
27
|
24
|
29
|
22
|
17
|
21
|
21
|
19
|
20
|
31
|
24
|
21
|
27
|
40
|
39
|
43
|
42
|
25
|
30
|
42
|
51
|
56
|
57
|
49
|
33
|
23
|
30
|
30
|
42
|
54
|
|
2023/09
|
34
|
44
|
42
|
44
|
42
|
45
|
43
|
47
|
43
|
32
|
30
|
27
|
28
|
36
|
46
|
55
|
52
|
39
|
35
|
25
|
23
|
22
|
24
|
21
|
21
|
24
|
28
|
24
|
25
|
25
|
|
|
2023/08
|
25
|
25
|
28
|
24
|
27
|
31
|
22
|
25
|
28
|
29
|
30
|
25
|
29
|
41
|
42
|
40
|
36
|
37
|
34
|
37
|
30
|
36
|
38
|
26
|
25
|
23
|
33
|
37
|
41
|
30
|
35
|
|
2023/07
|
38
|
36
|
34
|
34
|
34
|
36
|
45
|
36
|
35
|
29
|
29
|
20
|
23
|
33
|
43
|
40
|
41
|
44
|
33
|
29
|
27
|
30
|
39
|
30
|
31
|
26
|
21
|
22
|
27
|
34
|
29
|
|
2023/06
|
36
|
30
|
27
|
25
|
25
|
35
|
41
|
35
|
36
|
35
|
36
|
33
|
37
|
33
|
28
|
31
|
31
|
30
|
33
|
42
|
31
|
29
|
33
|
41
|
45
|
48
|
45
|
42
|
34
|
32
|
|
|
2023/05
|
52
|
55
|
45
|
53
|
60
|
37
|
32
|
28
|
23
|
21
|
23
|
31
|
38
|
43
|
44
|
48
|
60
|
47
|
39
|
39
|
42
|
29
|
45
|
52
|
53
|
39
|
39
|
40
|
51
|
46
|
50
|
|
2023/04
|
40
|
46
|
39
|
39
|
43
|
32
|
59
|
61
|
66
|
61
|
69
|
61
|
74
|
41
|
39
|
63
|
75
|
48
|
43
|
43
|
54
|
41
|
28
|
27
|
34
|
52
|
57
|
51
|
53
|
57
|
|
|
2023/03
|
52
|
41
|
35
|
56
|
62
|
72
|
81
|
42
|
47
|
62
|
60
|
30
|
35
|
57
|
63
|
67
|
54
|
39
|
40
|
45
|
41
|
48
|
43
|
29
|
28
|
40
|
27
|
30
|
25
|
38
|
47
|
|
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