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 Dec
Thu
11 Dec
Fri
12 Dec
Sat
13 Dec
Real-time AQI (Monitoring Station in Yilan)
宜兰
213
PM2.5
8
PM10
29
O3
0.2
CO
4
SO2
8
NO2
冬山
288
PM2.5
10
PM10
15
O3
0.3
CO
2
SO2
33
NO2
Air quality in the last 12 months (Yilan)
|
2025/11
|
33
|
55
|
40
|
16
|
20
|
23
|
38
|
38
|
33
|
43
|
22
|
9
|
13
|
37
|
41
|
30
|
32
|
25
|
32
|
44
|
50
|
54
|
44
|
41
|
56
|
75
|
62
|
107
|
82
|
53
|
|
|
2025/10
|
18
|
15
|
16
|
17
|
23
|
28
|
20
|
24
|
21
|
22
|
22
|
19
|
16
|
30
|
15
|
28
|
30
|
33
|
26
|
28
|
21
|
26
|
30
|
30
|
35
|
46
|
41
|
23
|
23
|
30
|
32
|
|
2025/09
|
21
|
31
|
28
|
30
|
22
|
23
|
19
|
22
|
21
|
28
|
24
|
26
|
37
|
29
|
22
|
22
|
21
|
22
|
18
|
22
|
23
|
25
|
31
|
31
|
21
|
18
|
17
|
18
|
22
|
20
|
|
|
2025/08
|
34
|
32
|
37
|
21
|
18
|
32
|
44
|
48
|
34
|
24
|
27
|
24
|
30
|
28
|
20
|
20
|
22
|
16
|
20
|
32
|
33
|
30
|
22
|
19
|
15
|
14
|
12
|
16
|
17
|
16
|
15
|
|
2025/07
|
18
|
22
|
24
|
24
|
16
|
17
|
23
|
38
|
27
|
16
|
13
|
26
|
37
|
40
|
34
|
38
|
32
|
20
|
31
|
33
|
20
|
19
|
21
|
23
|
20
|
29
|
28
|
29
|
20
|
34
|
47
|
|
2025/06
|
44
|
41
|
16
|
27
|
28
|
24
|
19
|
27
|
23
|
20
|
17
|
24
|
27
|
29
|
32
|
26
|
29
|
28
|
24
|
20
|
24
|
28
|
30
|
33
|
22
|
20
|
19
|
23
|
16
|
13
|
|
|
2025/05
|
46
|
48
|
48
|
31
|
42
|
41
|
47
|
54
|
53
|
32
|
29
|
35
|
28
|
25
|
21
|
22
|
27
|
18
|
25
|
32
|
23
|
37
|
44
|
22
|
51
|
39
|
23
|
22
|
15
|
37
|
43
|
|
2025/04
|
27
|
40
|
43
|
38
|
43
|
44
|
51
|
54
|
47
|
42
|
35
|
21
|
106
|
96
|
75
|
65
|
65
|
48
|
46
|
28
|
42
|
43
|
32
|
26
|
23
|
32
|
35
|
42
|
29
|
33
|
|
|
2025/03
|
55
|
37
|
27
|
21
|
13
|
15
|
36
|
44
|
28
|
27
|
43
|
34
|
29
|
31
|
31
|
30
|
49
|
49
|
44
|
48
|
47
|
45
|
57
|
69
|
63
|
42
|
56
|
51
|
56
|
24
|
20
|
|
2025/02
|
32
|
16
|
27
|
70
|
56
|
37
|
30
|
47
|
32
|
31
|
38
|
57
|
71
|
49
|
42
|
69
|
70
|
33
|
40
|
24
|
21
|
35
|
19
|
72
|
63
|
59
|
65
|
67
|
|||
|
2025/01
|
48
|
30
|
32
|
28
|
32
|
50
|
65
|
46
|
51
|
38
|
34
|
48
|
47
|
43
|
76
|
49
|
56
|
44
|
46
|
59
|
89
|
48
|
37
|
20
|
34
|
33
|
22
|
41
|
50
|
32
|
35
|
|
2024/12
|
38
|
42
|
31
|
33
|
26
|
29
|
28
|
62
|
23
|
18
|
24
|
19
|
20
|
70
|
74
|
50
|
40
|
46
|
41
|
20
|
42
|
53
|
19
|
19
|
16
|
49
|
70
|
68
|
37
|
38
|
50
|
|
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