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
13 Feb
Fri
14 Feb
Sat
15 Feb
Sun
16 Feb
Changhua Air quality rank
Real-time AQI (Monitoring Station in Changhua)
彰化
2514
PM2.5
20
PM10
51
O3
0.4
CO
2
SO2
26
NO2
线西
3413
PM2.5
25
PM10
63
O3
0.3
CO
3
SO2
22
NO2
二林
3511
PM2.5
31
PM10
63
O3
0.3
CO
5
SO2
16
NO2
Air quality in the last 12 months (Changhua)
|
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
|
|
2024/02
|
48
|
26
|
26
|
23
|
26
|
29
|
22
|
33
|
67
|
120
|
61
|
55
|
67
|
102
|
80
|
33
|
36
|
82
|
58
|
43
|
28
|
20
|
22
|
27
|
31
|
43
|
34
|
44
|
52
|
||
|
1
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2
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3
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4
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5
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6
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7
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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