Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Apr
Wed
23 Apr
Thu
24 Apr
Fri
25 Apr
Real-time AQI (Monitoring Station in Chiayi)
新港
2015
PM2.5
20
PM10
29
O3
0.1
CO
3
SO2
10
NO2
朴子
2014
PM2.5
21
PM10
29
O3
0.2
CO
3
SO2
10
NO2
Air quality in the last 12 months (Chiayi)
|
2025/02
|
39
|
18
|
23
|
65
|
56
|
35
|
26
|
48
|
35
|
30
|
39
|
60
|
68
|
47
|
39
|
60
|
65
|
40
|
37
|
24
|
21
|
32
|
19
|
61
|
57
|
53
|
62
|
80
|
|||
|
2025/01
|
48
|
38
|
34
|
30
|
37
|
49
|
63
|
45
|
49
|
43
|
35
|
46
|
44
|
41
|
78
|
54
|
54
|
40
|
46
|
50
|
77
|
49
|
44
|
20
|
32
|
35
|
20
|
43
|
47
|
33
|
39
|
|
2024/12
|
39
|
46
|
34
|
31
|
27
|
30
|
26
|
60
|
27
|
19
|
26
|
21
|
27
|
56
|
73
|
48
|
38
|
42
|
44
|
21
|
42
|
57
|
21
|
20
|
20
|
44
|
60
|
74
|
38
|
39
|
48
|
|
2024/11
|
22
|
19
|
35
|
38
|
48
|
41
|
35
|
30
|
26
|
22
|
21
|
26
|
26
|
22
|
21
|
15
|
23
|
34
|
19
|
13
|
18
|
28
|
32
|
22
|
28
|
20
|
39
|
31
|
40
|
39
|
|
|
2024/10
|
18
|
16
|
20
|
17
|
20
|
21
|
18
|
17
|
37
|
44
|
43
|
32
|
24
|
26
|
27
|
27
|
36
|
36
|
33
|
22
|
28
|
36
|
45
|
38
|
24
|
25
|
25
|
24
|
36
|
40
|
25
|
|
2024/09
|
29
|
30
|
28
|
26
|
24
|
20
|
20
|
15
|
21
|
41
|
53
|
35
|
18
|
22
|
29
|
22
|
28
|
28
|
24
|
20
|
24
|
10
|
12
|
15
|
26
|
16
|
19
|
24
|
25
|
21
|
|
|
2024/08
|
28
|
42
|
42
|
33
|
37
|
23
|
27
|
38
|
41
|
44
|
47
|
48
|
45
|
36
|
29
|
14
|
20
|
19
|
15
|
13
|
21
|
27
|
36
|
41
|
35
|
38
|
46
|
43
|
42
|
31
|
31
|
|
2024/07
|
20
|
18
|
19
|
20
|
24
|
19
|
17
|
17
|
15
|
17
|
24
|
27
|
22
|
21
|
21
|
18
|
20
|
18
|
25
|
24
|
20
|
19
|
26
|
20
|
17
|
18
|
22
|
28
|
23
|
19
|
15
|
|
2024/06
|
12
|
9
|
19
|
31
|
31
|
20
|
19
|
13
|
22
|
15
|
13
|
27
|
27
|
29
|
22
|
18
|
18
|
16
|
16
|
18
|
25
|
30
|
22
|
16
|
17
|
20
|
27
|
17
|
19
|
19
|
|
|
2024/05
|
23
|
22
|
26
|
35
|
38
|
46
|
33
|
40
|
31
|
33
|
31
|
34
|
32
|
31
|
40
|
44
|
34
|
38
|
24
|
22
|
13
|
13
|
26
|
31
|
24
|
24
|
16
|
25
|
27
|
29
|
36
|
|
2024/04
|
34
|
55
|
38
|
34
|
27
|
34
|
18
|
36
|
25
|
48
|
44
|
40
|
28
|
30
|
53
|
32
|
35
|
37
|
81
|
71
|
38
|
31
|
34
|
27
|
42
|
39
|
31
|
20
|
36
|
22
|
|
|
2024/03
|
18
|
41
|
45
|
49
|
50
|
27
|
44
|
61
|
59
|
48
|
51
|
36
|
59
|
61
|
49
|
51
|
80
|
49
|
50
|
63
|
59
|
68
|
60
|
32
|
25
|
42
|
31
|
52
|
49
|
60
|
37
|
|
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
*: primary pollution