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
1 May
Thu
2 May
Fri
3 May
Sat
4 May
Real-time AQI (Monitoring Station in Chiayi)
新港
839
PM2.5
16
PM10
97 *
O3
0.2
CO
2
SO2
11
NO2
朴子
7910
PM2.5
23
PM10
96 *
O3
0.4
CO
4
SO2
15
NO2
Air quality in the last 12 months (Chiayi)
|
2024/02
|
47
|
27
|
27
|
24
|
28
|
28
|
22
|
31
|
64
|
118
|
61
|
55
|
67
|
99
|
78
|
36
|
36
|
82
|
57
|
44
|
29
|
22
|
25
|
30
|
35
|
45
|
36
|
44
|
54
|
||
|
2024/01
|
68
|
42
|
60
|
48
|
57
|
61
|
92
|
48
|
44
|
63
|
94
|
94
|
54
|
30
|
75
|
31
|
34
|
47
|
38
|
35
|
26
|
25
|
24
|
30
|
41
|
56
|
70
|
80
|
68
|
40
|
41
|
|
2023/12
|
42
|
39
|
36
|
26
|
35
|
43
|
49
|
54
|
62
|
52
|
58
|
32
|
27
|
36
|
64
|
48
|
52
|
49
|
43
|
32
|
51
|
48
|
37
|
40
|
55
|
52
|
44
|
33
|
32
|
47
|
85
|
|
2023/11
|
32
|
31
|
32
|
31
|
38
|
53
|
41
|
43
|
45
|
35
|
24
|
26
|
37
|
37
|
32
|
31
|
51
|
63
|
50
|
48
|
39
|
36
|
45
|
73
|
33
|
28
|
44
|
54
|
53
|
58
|
|
|
2023/10
|
32
|
44
|
41
|
51
|
38
|
25
|
23
|
24
|
29
|
32
|
42
|
37
|
34
|
37
|
51
|
61
|
55
|
42
|
43
|
52
|
34
|
30
|
28
|
28
|
25
|
23
|
28
|
33
|
35
|
35
|
34
|
|
2023/09
|
28
|
24
|
19
|
17
|
19
|
20
|
27
|
27
|
29
|
29
|
26
|
21
|
25
|
32
|
25
|
36
|
47
|
22
|
19
|
22
|
29
|
24
|
24
|
27
|
25
|
27
|
30
|
29
|
25
|
30
|
|
|
2023/08
|
34
|
37
|
39
|
50
|
45
|
51
|
47
|
36
|
40
|
34
|
25
|
19
|
22
|
28
|
34
|
47
|
42
|
34
|
24
|
21
|
31
|
27
|
29
|
35
|
26
|
21
|
25
|
32
|
26
|
28
|
24
|
|
2023/07
|
15
|
18
|
21
|
25
|
33
|
32
|
40
|
43
|
42
|
27
|
20
|
21
|
24
|
26
|
19
|
22
|
25
|
23
|
25
|
35
|
26
|
20
|
17
|
22
|
24
|
44
|
36
|
27
|
21
|
23
|
29
|
|
2023/06
|
23
|
34
|
38
|
36
|
32
|
25
|
23
|
32
|
20
|
17
|
29
|
23
|
28
|
27
|
34
|
26
|
23
|
34
|
27
|
28
|
31
|
28
|
24
|
19
|
19
|
22
|
22
|
28
|
20
|
14
|
|
|
2023/05
|
62
|
47
|
48
|
36
|
25
|
24
|
28
|
36
|
43
|
40
|
43
|
50
|
55
|
60
|
71
|
39
|
34
|
42
|
44
|
34
|
28
|
25
|
64
|
69
|
61
|
42
|
39
|
25
|
20
|
27
|
27
|
|
2023/04
|
36
|
43
|
44
|
65
|
52
|
43
|
40
|
59
|
35
|
37
|
51
|
58
|
119
|
74
|
70
|
55
|
49
|
37
|
31
|
47
|
39
|
58
|
67
|
71
|
38
|
44
|
48
|
48
|
60
|
39
|
|
|
2023/03
|
55
|
68
|
39
|
49
|
50
|
49
|
44
|
52
|
60
|
53
|
53
|
61
|
59
|
39
|
42
|
47
|
33
|
37
|
32
|
46
|
58
|
35
|
40
|
46
|
29
|
31
|
56
|
46
|
44
|
41
|
38
|
|
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