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
6 Sep
Sun
7 Sep
Mon
8 Sep
Tue
9 Sep
Yilan Air quality rank
Real-time AQI (Monitoring Station in Yilan)
宜兰
88
PM2.5
9
PM10
6
O3
0.1
CO
2
SO2
6
NO2
冬山
115
PM2.5
13
PM10
14
O3
0.1
CO
2
SO2
8
NO2
Air quality in the last 12 months (Yilan)
|
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
|
|
2024/11
|
17
|
17
|
38
|
38
|
46
|
33
|
32
|
30
|
23
|
21
|
19
|
23
|
28
|
22
|
19
|
11
|
20
|
29
|
18
|
15
|
21
|
28
|
30
|
21
|
30
|
19
|
40
|
34
|
42
|
39
|
|
|
2024/10
|
17
|
14
|
19
|
15
|
15
|
18
|
16
|
18
|
36
|
43
|
42
|
29
|
23
|
26
|
23
|
25
|
34
|
33
|
28
|
21
|
29
|
36
|
41
|
33
|
21
|
20
|
22
|
22
|
36
|
34
|
22
|
|
2024/09
|
28
|
24
|
23
|
24
|
21
|
18
|
18
|
12
|
23
|
39
|
47
|
31
|
16
|
21
|
27
|
21
|
28
|
26
|
20
|
21
|
23
|
12
|
13
|
14
|
20
|
14
|
21
|
25
|
25
|
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