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
15 Dec
Tue
16 Dec
Wed
17 Dec
Thu
18 Dec
Fri
19 Dec
Real-time AQI (Monitoring Station in Chiayi)
新港
6230
PM2.5
71 *
PM10
13
O3
0.5
CO
8
SO2
51
NO2
朴子
5825 *
PM2.5
42
PM10
47
O3
0.5
CO
5
SO2
28
NO2
Air quality in the last 12 months (Chiayi)
|
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
|
|
2025/02
|
39
|
18
|
23
|
65
|
56
|
35
|
26
|
48
|
35
|
30
|
39
|
60
|
68
|
47
|
39
|
60
|
65
|
40
|
37
|
24
|
21
|
32
|
19
|
61
|
57
|
53
|
62
|
80
|
|||
|
2025/01
|
48
|
38
|
34
|
30
|
37
|
49
|
63
|
45
|
49
|
43
|
35
|
46
|
44
|
41
|
78
|
54
|
54
|
40
|
46
|
50
|
77
|
49
|
44
|
20
|
32
|
35
|
20
|
43
|
47
|
33
|
39
|
|
2024/12
|
39
|
46
|
34
|
31
|
27
|
30
|
26
|
60
|
27
|
19
|
26
|
21
|
27
|
56
|
73
|
48
|
38
|
42
|
44
|
21
|
42
|
57
|
21
|
20
|
20
|
44
|
60
|
74
|
38
|
39
|
48
|
|
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