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
10 May
Sun
11 May
Mon
12 May
Tue
13 May
Real-time AQI (Monitoring Station in Changhua)
彰化
123
PM2.5
9
PM10
43
O3
0.1
CO
0
SO2
8
NO2
线西
155
PM2.5
19
PM10
59
O3
0.2
CO
2
SO2
8
NO2
二林
164
PM2.5
8
PM10
57
O3
0.1
CO
4
SO2
2
NO2
大城
163
PM2.5
18
PM10
47
O3
0.1
CO
3
SO2
2
NO2
Air quality in the last 12 months (Changhua)
|
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
|
|
|
2024/05
|
21
|
22
|
26
|
34
|
40
|
47
|
33
|
41
|
29
|
31
|
32
|
34
|
32
|
30
|
40
|
42
|
35
|
38
|
25
|
22
|
12
|
14
|
27
|
32
|
24
|
25
|
17
|
24
|
26
|
29
|
36
|
|
2024/04
|
35
|
56
|
39
|
32
|
26
|
34
|
17
|
36
|
26
|
49
|
46
|
41
|
27
|
31
|
54
|
33
|
37
|
38
|
84
|
73
|
39
|
31
|
34
|
28
|
44
|
44
|
35
|
20
|
37
|
22
|
|
|
2024/03
|
19
|
41
|
46
|
50
|
51
|
25
|
46
|
61
|
59
|
47
|
49
|
37
|
58
|
62
|
46
|
48
|
74
|
48
|
48
|
64
|
59
|
68
|
61
|
34
|
27
|
41
|
30
|
53
|
47
|
61
|
40
|
|
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