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
11 Jul
Sun
12 Jul
Mon
13 Jul
Real-time AQI (Monitoring Station in Changhua)
彰化
259
PM2.5
27
PM10
75
O3
0.0
CO
2
SO2
2
NO2
线西
3412
PM2.5
34
PM10
37
O3
0.0
CO
1
SO2
2
NO2
二林
308
PM2.5
34
PM10
33
O3
0.1
CO
2
SO2
0
NO2
Air quality in the last 12 months (Changhua)
|
2026/05
|
42
|
45
|
38
|
33
|
33
|
34
|
32
|
38
|
34
|
31
|
35
|
34
|
27
|
25
|
28
|
33
|
35
|
31
|
34
|
36
|
37
|
45
|
40
|
39
|
40
|
39
|
40
|
31
|
45
|
50
|
45
|
|
2026/04
|
33
|
38
|
38
|
32
|
37
|
32
|
39
|
45
|
47
|
37
|
30
|
26
|
38
|
27
|
27
|
33
|
40
|
36
|
36
|
39
|
40
|
42
|
35
|
27
|
38
|
43
|
43
|
46
|
30
|
28
|
|
|
2026/03
|
35
|
46
|
27
|
34
|
28
|
41
|
48
|
35
|
39
|
43
|
40
|
44
|
56
|
43
|
44
|
33
|
39
|
48
|
29
|
40
|
37
|
38
|
32
|
30
|
39
|
35
|
40
|
37
|
51
|
42
|
41
|
|
2026/02
|
20
|
38
|
51
|
33
|
37
|
43
|
26
|
45
|
40
|
37
|
44
|
56
|
48
|
52
|
33
|
38
|
33
|
47
|
51
|
71
|
58
|
67
|
98
|
72
|
31
|
45
|
54
|
26
|
|||
|
2026/01
|
23
|
29
|
40
|
31
|
50
|
35
|
42
|
48
|
56
|
56
|
63
|
58
|
59
|
48
|
46
|
50
|
51
|
20
|
33
|
30
|
43
|
51
|
43
|
43
|
39
|
32
|
24
|
28
|
36
|
37
|
16
|
|
2025/12
|
44
|
42
|
49
|
37
|
31
|
30
|
33
|
43
|
40
|
29
|
37
|
49
|
50
|
40
|
51
|
42
|
49
|
56
|
50
|
48
|
68
|
27
|
33
|
50
|
23
|
35
|
24
|
28
|
31
|
43
|
35
|
|
2025/11
|
30
|
53
|
44
|
17
|
20
|
22
|
37
|
35
|
34
|
42
|
22
|
9
|
12
|
34
|
43
|
32
|
34
|
27
|
29
|
42
|
45
|
50
|
43
|
41
|
51
|
76
|
58
|
103
|
82
|
55
|
|
|
2025/10
|
23
|
16
|
19
|
22
|
27
|
31
|
24
|
26
|
23
|
24
|
24
|
21
|
20
|
34
|
18
|
29
|
31
|
34
|
28
|
30
|
20
|
24
|
30
|
32
|
36
|
48
|
44
|
25
|
26
|
34
|
38
|
|
2025/09
|
26
|
36
|
32
|
34
|
24
|
21
|
18
|
20
|
20
|
29
|
25
|
27
|
36
|
29
|
24
|
25
|
22
|
23
|
18
|
22
|
25
|
25
|
31
|
31
|
23
|
19
|
20
|
20
|
25
|
25
|
|
|
2025/08
|
34
|
31
|
33
|
18
|
19
|
30
|
41
|
46
|
29
|
20
|
23
|
24
|
30
|
28
|
20
|
22
|
24
|
17
|
22
|
32
|
33
|
32
|
26
|
23
|
20
|
16
|
15
|
17
|
17
|
17
|
17
|
|
2025/07
|
19
|
21
|
26
|
27
|
17
|
20
|
28
|
44
|
34
|
15
|
12
|
27
|
40
|
42
|
36
|
38
|
34
|
24
|
32
|
33
|
21
|
19
|
21
|
24
|
22
|
34
|
35
|
31
|
20
|
40
|
46
|
|
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
|
|
|
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