Air Quality
Excellent
No health implications.
15
PM2.5
16
PM10
35
O3
0.1
CO
2
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
50
Excellent
Sun
24 May
55
Good
Mon
25 May
55
Good
Tue
26 May
55
Good
Real-time AQI (Monitoring Station in Chiayi)
朴子
1515
PM2.5
16
PM10
35
O3
0.1
CO
2
SO2
4
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
Air quality source: CNEMC
*: primary pollution