Air Quality
Excellent
No health implications.
10
PM2.5
2
PM10
41
O3
0.1
CO
3
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Aug
50
Excellent
Tue
25 Aug
50
Excellent
Wed
26 Aug
50
Excellent
Thu
27 Aug
50
Excellent
Real-time AQI (Monitoring Station in Chiayi)
朴子
200
PM2.5
2
PM10
41
O3
0.1
CO
3
SO2
6
NO2
Air quality in the last 12 months (Chiayi)
|
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
|
|
|
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
|
|
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