Air Quality
Excellent
No health implications.
21
PM2.5
29
PM10
51
O3
0.4
CO
3
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Jan
42
Excellent
Fri
23 Jan
44
Excellent
Sat
24 Jan
49
Excellent
Sun
25 Jan
54
Good
Mon
26 Jan
53
Good
Tue
27 Jan
17
Excellent
Wed
28 Jan
44
Excellent
Air quality in the last 12 months (Yongtai)
|
2025/11
|
19
|
33
|
42
|
9
|
8
|
19
|
26
|
26
|
23
|
25
|
18
|
7
|
8
|
24
|
39
|
30
|
28
|
21
|
20
|
26
|
29
|
34
|
36
|
35
|
38
|
73
|
50
|
71
|
64
|
46
|
|
|
2025/10
|
26
|
18
|
22
|
24
|
30
|
34
|
23
|
26
|
27
|
24
|
24
|
27
|
37
|
30
|
17
|
20
|
27
|
23
|
15
|
12
|
9
|
8
|
19
|
19
|
23
|
32
|
39
|
18
|
19
|
26
|
19
|
|
2025/09
|
23
|
26
|
34
|
36
|
28
|
14
|
18
|
16
|
18
|
24
|
22
|
32
|
36
|
30
|
24
|
17
|
13
|
11
|
15
|
11
|
13
|
15
|
15
|
15
|
14
|
13
|
15
|
17
|
25
|
29
|
|
|
2025/08
|
30
|
28
|
24
|
20
|
17
|
26
|
35
|
40
|
38
|
28
|
24
|
26
|
16
|
19
|
10
|
12
|
14
|
18
|
24
|
18
|
19
|
25
|
36
|
30
|
15
|
13
|
12
|
12
|
13
|
12
|
19
|
|
2025/07
|
19
|
15
|
21
|
21
|
17
|
16
|
17
|
33
|
28
|
16
|
11
|
17
|
30
|
20
|
31
|
37
|
41
|
21
|
13
|
13
|
10
|
11
|
14
|
13
|
17
|
18
|
17
|
18
|
18
|
32
|
32
|
|
2025/06
|
40
|
43
|
14
|
22
|
33
|
32
|
36
|
39
|
25
|
23
|
22
|
12
|
13
|
21
|
22
|
22
|
28
|
28
|
20
|
20
|
22
|
25
|
31
|
27
|
28
|
26
|
24
|
23
|
26
|
18
|
|
|
2025/05
|
54
|
45
|
57
|
52
|
42
|
46
|
56
|
43
|
37
|
29
|
27
|
33
|
36
|
38
|
40
|
40
|
33
|
28
|
34
|
37
|
36
|
33
|
46
|
16
|
46
|
37
|
34
|
15
|
12
|
26
|
39
|
|
2025/04
|
14
|
29
|
32
|
42
|
39
|
46
|
52
|
51
|
67
|
46
|
47
|
44
|
104
|
91
|
82
|
60
|
62
|
60
|
55
|
18
|
45
|
55
|
38
|
22
|
10
|
14
|
26
|
40
|
42
|
37
|
|
|
2025/03
|
70
|
50
|
39
|
34
|
10
|
10
|
26
|
34
|
35
|
32
|
50
|
62
|
42
|
22
|
25
|
14
|
46
|
38
|
43
|
45
|
36
|
38
|
56
|
67
|
80
|
71
|
56
|
47
|
17
|
7
|
7
|
|
2025/02
|
35
|
12
|
11
|
47
|
47
|
30
|
17
|
50
|
30
|
33
|
41
|
95
|
60
|
62
|
41
|
64
|
67
|
49
|
33
|
9
|
10
|
21
|
11
|
48
|
62
|
60
|
65
|
55
|
|||
|
2025/01
|
61
|
50
|
41
|
37
|
36
|
51
|
62
|
50
|
52
|
46
|
31
|
40
|
42
|
47
|
70
|
57
|
48
|
41
|
37
|
42
|
58
|
47
|
40
|
22
|
26
|
29
|
18
|
38
|
92
|
38
|
32
|
|
2024/12
|
37
|
36
|
28
|
39
|
40
|
36
|
20
|
54
|
38
|
36
|
30
|
15
|
15
|
49
|
70
|
53
|
42
|
38
|
43
|
26
|
36
|
58
|
32
|
23
|
27
|
49
|
67
|
81
|
45
|
40
|
55
|
|
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