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
25 Dec
Thu
26 Dec
Fri
27 Dec
Sat
28 Dec
Real-time AQI (Monitoring Station in Yilan)
宜兰
214
PM2.5
11
PM10
77
O3
0.2
CO
5
SO2
8
NO2
冬山
215
PM2.5
24
PM10
69
O3
0.2
CO
4
SO2
20
NO2
Air quality in the last 12 months (Yilan)
|
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
|
|
2024/04
|
38
|
56
|
42
|
29
|
29
|
38
|
21
|
38
|
28
|
50
|
48
|
39
|
26
|
28
|
53
|
34
|
36
|
38
|
93
|
77
|
42
|
28
|
30
|
29
|
43
|
49
|
39
|
23
|
39
|
21
|
|
|
2024/03
|
20
|
44
|
50
|
52
|
51
|
20
|
46
|
62
|
60
|
42
|
44
|
41
|
56
|
58
|
43
|
44
|
64
|
48
|
49
|
68
|
61
|
65
|
59
|
40
|
30
|
40
|
27
|
53
|
48
|
60
|
46
|
|
2024/02
|
43
|
26
|
25
|
21
|
23
|
30
|
23
|
36
|
78
|
120
|
61
|
62
|
62
|
90
|
75
|
32
|
36
|
80
|
61
|
44
|
32
|
19
|
23
|
26
|
29
|
44
|
35
|
43
|
44
|
||
|
2024/01
|
75
|
41
|
58
|
52
|
57
|
66
|
103
|
50
|
43
|
70
|
104
|
100
|
54
|
32
|
78
|
28
|
34
|
47
|
46
|
32
|
24
|
23
|
26
|
31
|
43
|
60
|
79
|
85
|
78
|
34
|
35
|
|
2023/12
|
43
|
41
|
44
|
28
|
31
|
42
|
53
|
54
|
61
|
44
|
57
|
27
|
33
|
36
|
60
|
50
|
54
|
50
|
39
|
36
|
54
|
45
|
40
|
43
|
58
|
55
|
41
|
30
|
31
|
49
|
92
|
|
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