Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
2 Apr
Fri
3 Apr
Sat
4 Apr
Sun
5 Apr
Mon
6 Apr
Real-time AQI (Monitoring Station in Chiayi)
新港
8415
PM2.5
44
PM10
105 *
O3
0.2
CO
4
SO2
10
NO2
朴子
4911
PM2.5
44
PM10
99
O3
0.2
CO
3
SO2
10
NO2
Air quality in the last 12 months (Chiayi)
|
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
|
|
2025/04
|
22
|
36
|
45
|
43
|
48
|
47
|
53
|
56
|
48
|
42
|
35
|
17
|
112
|
104
|
86
|
71
|
65
|
50
|
48
|
31
|
38
|
39
|
33
|
25
|
19
|
27
|
30
|
45
|
32
|
37
|
|
|
2025/03
|
62
|
30
|
24
|
20
|
13
|
17
|
35
|
42
|
28
|
29
|
42
|
36
|
32
|
28
|
36
|
26
|
50
|
48
|
46
|
47
|
48
|
47
|
60
|
69
|
51
|
32
|
50
|
52
|
54
|
21
|
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
*: primary pollution