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
30 Jun
Tue
1 Jul
Wed
2 Jul
Thu
3 Jul
Real-time AQI (Monitoring Station in Changhua)
彰化
177
PM2.5
6
PM10
26
O3
0.1
CO
2
SO2
10
NO2
线西
196
PM2.5
18
PM10
20
O3
0.2
CO
2
SO2
14
NO2
二林
3215
PM2.5
24
PM10
14
O3
0.2
CO
4
SO2
14
NO2
大城
2616
PM2.5
38
PM10
16
O3
0.2
CO
4
SO2
12
NO2
Air quality in the last 12 months (Changhua)
|
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
|
|
2024/06
|
11
|
8
|
18
|
32
|
31
|
19
|
20
|
14
|
22
|
15
|
14
|
28
|
28
|
29
|
22
|
17
|
18
|
16
|
17
|
18
|
26
|
32
|
25
|
17
|
18
|
21
|
29
|
17
|
18
|
20
|
|
|
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