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
1 Jun
Mon
2 Jun
Tue
3 Jun
Wed
4 Jun
Real-time AQI (Monitoring Station in Yilan)
宜兰
2215
PM2.5
15
PM10
28
O3
0.2
CO
2
SO2
4
NO2
冬山
2713
PM2.5
34
PM10
47
O3
0.2
CO
2
SO2
8
NO2
Air quality in the last 12 months (Yilan)
|
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
|
|
|
2024/08
|
28
|
46
|
44
|
37
|
33
|
20
|
29
|
35
|
40
|
45
|
48
|
52
|
47
|
33
|
29
|
15
|
21
|
19
|
15
|
12
|
22
|
27
|
35
|
40
|
28
|
31
|
45
|
38
|
37
|
30
|
31
|
|
2024/07
|
22
|
21
|
23
|
22
|
27
|
21
|
19
|
20
|
18
|
21
|
30
|
32
|
28
|
26
|
19
|
16
|
20
|
21
|
26
|
22
|
20
|
17
|
23
|
19
|
21
|
20
|
22
|
26
|
21
|
16
|
16
|
|
2024/06
|
11
|
9
|
18
|
33
|
30
|
17
|
18
|
16
|
20
|
13
|
15
|
27
|
27
|
28
|
21
|
17
|
18
|
15
|
19
|
24
|
32
|
35
|
31
|
19
|
18
|
22
|
34
|
19
|
20
|
20
|
|
|
2024/05
|
19
|
23
|
27
|
36
|
48
|
48
|
34
|
40
|
25
|
32
|
31
|
34
|
32
|
29
|
41
|
38
|
32
|
35
|
24
|
23
|
14
|
17
|
27
|
28
|
20
|
24
|
18
|
21
|
23
|
25
|
34
|
|
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