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
23 May
Sun
24 May
Mon
25 May
Real-time AQI (Monitoring Station in Chiayi)
新港
1913
PM2.5
19
PM10
16
O3
0.1
CO
2
SO2
6
NO2
朴子
1614
PM2.5
18
PM10
10
O3
0.1
CO
2
SO2
10
NO2
Air quality in the last 12 months (Chiayi)
|
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
|
|
|
2025/08
|
34
|
31
|
34
|
17
|
20
|
31
|
41
|
46
|
27
|
18
|
22
|
24
|
31
|
28
|
21
|
23
|
24
|
18
|
21
|
31
|
33
|
32
|
25
|
23
|
21
|
17
|
16
|
18
|
18
|
18
|
17
|
|
2025/07
|
19
|
22
|
26
|
27
|
17
|
20
|
30
|
44
|
35
|
15
|
12
|
29
|
41
|
43
|
35
|
37
|
34
|
25
|
33
|
34
|
23
|
20
|
21
|
25
|
23
|
36
|
36
|
30
|
21
|
41
|
44
|
|
2025/06
|
46
|
36
|
17
|
26
|
30
|
23
|
19
|
23
|
21
|
23
|
20
|
25
|
28
|
31
|
34
|
29
|
25
|
28
|
22
|
20
|
18
|
24
|
28
|
28
|
20
|
16
|
16
|
22
|
16
|
16
|
|
|
2025/05
|
51
|
54
|
47
|
36
|
41
|
39
|
46
|
52
|
48
|
31
|
29
|
39
|
32
|
31
|
24
|
20
|
20
|
17
|
25
|
30
|
21
|
36
|
40
|
21
|
50
|
40
|
24
|
21
|
12
|
35
|
44
|
|
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