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
25 Oct
Mon
26 Oct
Tue
27 Oct
Wed
28 Oct
Real-time AQI (Monitoring Station in Chiayi)
新港
4614
PM2.5
31
PM10
59
O3
0.3
CO
4
SO2
16
NO2
朴子
446
PM2.5
31
PM10
65
O3
0.2
CO
2
SO2
16
NO2
Air quality in the last 12 months (Chiayi)
|
2026/08
|
29
|
34
|
39
|
26
|
25
|
25
|
35
|
35
|
22
|
29
|
51
|
47
|
38
|
27
|
25
|
26
|
29
|
26
|
23
|
16
|
22
|
26
|
20
|
20
|
21
|
24
|
33
|
37
|
34
|
23
|
22
|
|
2026/07
|
28
|
30
|
24
|
29
|
22
|
21
|
19
|
26
|
32
|
27
|
34
|
33
|
18
|
21
|
21
|
22
|
28
|
34
|
37
|
32
|
44
|
45
|
49
|
36
|
23
|
31
|
18
|
18
|
22
|
25
|
33
|
|
2026/06
|
37
|
42
|
38
|
29
|
34
|
43
|
28
|
29
|
32
|
35
|
38
|
35
|
35
|
24
|
21
|
23
|
21
|
17
|
20
|
25
|
36
|
32
|
32
|
37
|
26
|
25
|
31
|
32
|
30
|
19
|
|
|
2026/05
|
41
|
45
|
39
|
33
|
34
|
34
|
33
|
39
|
35
|
32
|
35
|
35
|
28
|
25
|
28
|
33
|
36
|
32
|
35
|
35
|
36
|
47
|
39
|
37
|
38
|
38
|
39
|
31
|
45
|
51
|
46
|
|
2026/04
|
32
|
39
|
38
|
33
|
36
|
31
|
39
|
46
|
48
|
34
|
29
|
25
|
34
|
25
|
27
|
33
|
39
|
37
|
37
|
39
|
41
|
42
|
35
|
26
|
38
|
43
|
42
|
45
|
30
|
28
|
|
|
2026/03
|
33
|
46
|
27
|
34
|
30
|
41
|
48
|
36
|
39
|
43
|
41
|
45
|
59
|
45
|
47
|
34
|
39
|
47
|
30
|
40
|
38
|
37
|
32
|
30
|
39
|
35
|
41
|
37
|
50
|
41
|
40
|
|
2026/02
|
21
|
39
|
50
|
34
|
36
|
44
|
28
|
47
|
42
|
38
|
45
|
56
|
48
|
51
|
34
|
39
|
34
|
48
|
51
|
70
|
58
|
67
|
94
|
72
|
33
|
47
|
54
|
26
|
|||
|
2026/01
|
24
|
30
|
40
|
30
|
51
|
36
|
42
|
47
|
55
|
56
|
63
|
58
|
59
|
46
|
45
|
49
|
51
|
20
|
33
|
32
|
46
|
52
|
43
|
43
|
36
|
31
|
23
|
29
|
35
|
38
|
16
|
|
2025/12
|
43
|
41
|
47
|
37
|
31
|
31
|
33
|
43
|
41
|
30
|
37
|
49
|
50
|
41
|
51
|
43
|
49
|
54
|
50
|
48
|
67
|
28
|
33
|
48
|
24
|
34
|
25
|
29
|
32
|
42
|
36
|
|
2025/11
|
30
|
52
|
45
|
19
|
21
|
25
|
36
|
35
|
37
|
42
|
22
|
10
|
13
|
34
|
43
|
33
|
35
|
30
|
30
|
43
|
46
|
50
|
44
|
43
|
51
|
76
|
58
|
101
|
83
|
55
|
|
|
2025/10
|
22
|
16
|
19
|
23
|
27
|
31
|
24
|
26
|
24
|
24
|
23
|
21
|
19
|
34
|
18
|
29
|
32
|
35
|
30
|
32
|
22
|
25
|
31
|
33
|
37
|
48
|
45
|
26
|
27
|
34
|
40
|
|
2025/09
|
26
|
37
|
33
|
33
|
24
|
23
|
19
|
22
|
21
|
29
|
25
|
26
|
34
|
27
|
24
|
25
|
22
|
23
|
20
|
22
|
26
|
26
|
32
|
32
|
24
|
19
|
20
|
21
|
26
|
26
|
|
|
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