Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Jul
Sun
27 Jul
Mon
28 Jul
Tue
29 Jul
Real-time AQI (Monitoring Station in Changhua)
彰化
2511
PM2.5
18
PM10
33
O3
0.2
CO
3
SO2
13
NO2
线西
3411
PM2.5
19
PM10
67
O3
0.1
CO
3
SO2
4
NO2
二林
3212
PM2.5
19
PM10
64
O3
0.1
CO
3
SO2
2
NO2
大城
349
PM2.5
19
PM10
77
O3
0.1
CO
3
SO2
4
NO2
Air quality in the last 12 months (Changhua)
|
2025/06
|
46
|
37
|
17
|
26
|
29
|
23
|
19
|
24
|
22
|
23
|
20
|
24
|
27
|
28
|
32
|
29
|
26
|
28
|
23
|
20
|
20
|
25
|
30
|
30
|
21
|
17
|
17
|
23
|
17
|
15
|
|
|
2025/05
|
52
|
54
|
48
|
35
|
42
|
40
|
46
|
52
|
46
|
31
|
29
|
38
|
31
|
30
|
25
|
22
|
21
|
17
|
25
|
32
|
23
|
37
|
43
|
20
|
51
|
40
|
26
|
20
|
13
|
36
|
44
|
|
2025/04
|
22
|
36
|
43
|
42
|
49
|
47
|
53
|
56
|
50
|
44
|
37
|
19
|
112
|
101
|
82
|
69
|
65
|
51
|
47
|
31
|
41
|
41
|
33
|
24
|
20
|
27
|
31
|
44
|
32
|
36
|
|
|
2025/03
|
62
|
34
|
25
|
21
|
13
|
16
|
36
|
43
|
28
|
29
|
43
|
36
|
30
|
28
|
34
|
26
|
50
|
47
|
46
|
47
|
47
|
47
|
62
|
70
|
55
|
35
|
47
|
52
|
52
|
19
|
15
|
|
2025/02
|
37
|
16
|
23
|
68
|
55
|
34
|
26
|
49
|
33
|
31
|
40
|
66
|
73
|
51
|
42
|
62
|
68
|
38
|
37
|
22
|
20
|
33
|
18
|
65
|
60
|
54
|
63
|
78
|
|||
|
2025/01
|
50
|
36
|
34
|
31
|
36
|
49
|
65
|
45
|
51
|
42
|
34
|
46
|
44
|
42
|
79
|
53
|
54
|
41
|
44
|
51
|
81
|
49
|
44
|
19
|
33
|
35
|
19
|
44
|
49
|
32
|
38
|
|
2024/12
|
38
|
45
|
32
|
33
|
28
|
31
|
24
|
62
|
26
|
21
|
26
|
20
|
27
|
59
|
74
|
49
|
38
|
43
|
44
|
20
|
42
|
57
|
21
|
20
|
19
|
46
|
65
|
74
|
37
|
39
|
48
|
|
2024/11
|
20
|
18
|
37
|
38
|
49
|
40
|
35
|
30
|
25
|
22
|
20
|
26
|
26
|
22
|
22
|
13
|
23
|
33
|
19
|
14
|
18
|
28
|
32
|
22
|
27
|
20
|
39
|
31
|
41
|
39
|
|
|
2024/10
|
18
|
15
|
19
|
16
|
20
|
20
|
17
|
16
|
37
|
44
|
43
|
32
|
25
|
27
|
27
|
27
|
36
|
35
|
31
|
22
|
28
|
35
|
44
|
37
|
23
|
24
|
24
|
24
|
37
|
39
|
26
|
|
2024/09
|
29
|
29
|
27
|
26
|
23
|
20
|
20
|
14
|
22
|
42
|
52
|
34
|
18
|
22
|
29
|
22
|
28
|
28
|
23
|
21
|
25
|
10
|
12
|
16
|
25
|
15
|
19
|
25
|
25
|
20
|
|
|
2024/08
|
28
|
43
|
43
|
35
|
37
|
21
|
27
|
38
|
43
|
47
|
48
|
50
|
46
|
36
|
29
|
13
|
21
|
19
|
16
|
11
|
21
|
27
|
37
|
42
|
35
|
38
|
48
|
44
|
40
|
33
|
33
|
|
2024/07
|
21
|
19
|
19
|
21
|
25
|
20
|
17
|
17
|
16
|
18
|
26
|
29
|
24
|
23
|
21
|
18
|
21
|
19
|
25
|
25
|
21
|
20
|
25
|
19
|
17
|
18
|
21
|
28
|
23
|
18
|
15
|
|
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