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
26 Jun
Sat
27 Jun
Sun
28 Jun
Real-time AQI (Monitoring Station in Yilan)
宜兰
200
PM2.5
4
PM10
43
O3
0.2
CO
2
SO2
13
NO2
冬山
195
PM2.5
4
PM10
45
O3
0.1
CO
1
SO2
17
NO2
Air quality in the last 12 months (Yilan)
|
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
|
|
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
|
|
|
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