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
24 Jul
Sat
25 Jul
Sun
26 Jul
Mon
27 Jul
Real-time AQI (Monitoring Station in Yilan)
宜兰
154
PM2.5
13
PM10
20
O3
0.1
CO
2
SO2
2
NO2
冬山
162
PM2.5
13
PM10
25
O3
0.1
CO
3
SO2
6
NO2
Air quality in the last 12 months (Yilan)
|
2026/06
|
33
|
40
|
43
|
33
|
35
|
41
|
29
|
30
|
32
|
32
|
39
|
34
|
35
|
26
|
23
|
24
|
22
|
18
|
21
|
26
|
37
|
33
|
33
|
35
|
26
|
26
|
33
|
36
|
33
|
21
|
|
|
2026/05
|
42
|
46
|
39
|
33
|
32
|
33
|
30
|
36
|
33
|
30
|
33
|
30
|
26
|
28
|
28
|
32
|
34
|
30
|
33
|
38
|
43
|
47
|
41
|
39
|
46
|
44
|
43
|
31
|
45
|
47
|
43
|
|
2026/04
|
35
|
39
|
43
|
32
|
39
|
32
|
36
|
43
|
48
|
45
|
34
|
29
|
48
|
36
|
29
|
32
|
38
|
34
|
37
|
39
|
39
|
43
|
33
|
29
|
37
|
41
|
40
|
43
|
31
|
29
|
|
|
2026/03
|
33
|
38
|
27
|
35
|
29
|
40
|
47
|
34
|
36
|
42
|
38
|
44
|
60
|
45
|
44
|
34
|
41
|
51
|
29
|
41
|
36
|
39
|
31
|
31
|
41
|
33
|
43
|
40
|
53
|
40
|
42
|
|
2026/02
|
20
|
39
|
49
|
29
|
32
|
40
|
26
|
45
|
41
|
37
|
48
|
59
|
47
|
48
|
29
|
36
|
37
|
49
|
55
|
69
|
52
|
60
|
103
|
65
|
29
|
49
|
47
|
31
|
|||
|
2026/01
|
21
|
27
|
39
|
32
|
44
|
40
|
45
|
52
|
60
|
57
|
62
|
58
|
59
|
52
|
46
|
52
|
47
|
21
|
34
|
28
|
42
|
51
|
42
|
47
|
48
|
33
|
21
|
29
|
33
|
37
|
18
|
|
2025/12
|
44
|
45
|
49
|
36
|
30
|
29
|
32
|
43
|
36
|
28
|
35
|
46
|
48
|
40
|
54
|
42
|
50
|
55
|
47
|
47
|
65
|
27
|
34
|
50
|
23
|
33
|
23
|
27
|
29
|
42
|
32
|
|
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
|
|
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