Air Quality
Excellent
No health implications.
31
PM2.5
42
PM10
30
O3
0.8
CO
5
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Apr
48
Excellent
Sun
28 Apr
51
Good
Mon
29 Apr
48
Excellent
Tue
30 Apr
47
Excellent
Wed
1 May
50
Excellent
Thu
2 May
49
Excellent
Air quality in the last 12 months (Yongtai)
|
2024/02
|
47
|
21
|
22
|
17
|
16
|
21
|
17
|
23
|
49
|
97
|
49
|
42
|
46
|
65
|
79
|
22
|
31
|
51
|
44
|
43
|
44
|
21
|
14
|
30
|
39
|
23
|
22
|
40
|
49
|
||
|
2024/01
|
91
|
68
|
34
|
39
|
47
|
53
|
94
|
58
|
50
|
45
|
85
|
76
|
42
|
33
|
70
|
41
|
36
|
42
|
46
|
32
|
17
|
18
|
21
|
24
|
39
|
57
|
72
|
82
|
42
|
32
|
37
|
|
2023/12
|
44
|
39
|
30
|
28
|
24
|
25
|
32
|
44
|
53
|
60
|
73
|
28
|
18
|
25
|
57
|
25
|
22
|
22
|
13
|
11
|
36
|
38
|
26
|
32
|
40
|
46
|
36
|
36
|
37
|
51
|
62
|
|
2023/11
|
26
|
30
|
34
|
36
|
50
|
46
|
32
|
36
|
36
|
34
|
21
|
21
|
20
|
28
|
28
|
24
|
50
|
57
|
51
|
41
|
36
|
31
|
34
|
73
|
38
|
31
|
42
|
52
|
55
|
58
|
|
|
2023/10
|
29
|
36
|
36
|
36
|
30
|
25
|
21
|
17
|
22
|
23
|
30
|
30
|
31
|
32
|
44
|
46
|
49
|
46
|
44
|
33
|
27
|
24
|
26
|
30
|
34
|
32
|
25
|
30
|
34
|
32
|
29
|
|
2023/09
|
24
|
19
|
15
|
15
|
16
|
14
|
22
|
27
|
32
|
34
|
40
|
34
|
35
|
45
|
34
|
39
|
53
|
42
|
24
|
28
|
32
|
21
|
20
|
22
|
25
|
25
|
25
|
24
|
23
|
30
|
|
|
2023/08
|
29
|
34
|
34
|
26
|
42
|
47
|
50
|
33
|
32
|
31
|
28
|
24
|
31
|
33
|
29
|
31
|
33
|
32
|
25
|
26
|
33
|
28
|
25
|
28
|
34
|
23
|
21
|
32
|
34
|
17
|
20
|
|
2023/07
|
22
|
20
|
23
|
23
|
27
|
39
|
40
|
44
|
53
|
52
|
40
|
31
|
36
|
34
|
21
|
19
|
19
|
26
|
26
|
26
|
25
|
27
|
31
|
37
|
18
|
19
|
16
|
19
|
18
|
30
|
30
|
|
2023/06
|
27
|
39
|
44
|
48
|
48
|
41
|
28
|
26
|
21
|
21
|
32
|
39
|
40
|
34
|
27
|
26
|
26
|
29
|
35
|
40
|
35
|
30
|
28
|
25
|
28
|
25
|
29
|
33
|
28
|
22
|
|
|
2023/05
|
44
|
40
|
43
|
38
|
29
|
30
|
21
|
27
|
33
|
38
|
41
|
48
|
56
|
66
|
66
|
56
|
48
|
34
|
40
|
33
|
43
|
31
|
49
|
61
|
62
|
57
|
44
|
29
|
18
|
21
|
22
|
|
2023/04
|
41
|
46
|
41
|
57
|
34
|
26
|
20
|
52
|
41
|
38
|
52
|
61
|
117
|
81
|
42
|
62
|
73
|
51
|
25
|
28
|
25
|
45
|
61
|
61
|
33
|
23
|
40
|
48
|
58
|
34
|
|
|
2023/03
|
43
|
66
|
53
|
46
|
54
|
52
|
47
|
47
|
59
|
50
|
45
|
41
|
59
|
46
|
50
|
55
|
48
|
39
|
37
|
56
|
70
|
67
|
42
|
30
|
20
|
23
|
52
|
44
|
30
|
28
|
35
|
|
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