Taiwan - China   2025-06-01   Sunday   24.76N, 121.74E

Yilan

Taiwan - China
2025-06-01

Air Quality

Excellent

No health implications.

12

PM2.5

22

PM10

32

O3

0.2

CO

2

SO2

4

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

1 Jun

50 Excellent

Mon

2 Jun

50 Excellent

Tue

3 Jun

50 Excellent

Wed

4 Jun

50 Excellent

Real-time AQI (Monitoring Station in Yilan)

宜兰

22

15

PM2.5

15

PM10

28

O3

0.2

CO

2

SO2

4

NO2

冬山

27

13

PM2.5

34

PM10

47

O3

0.2

CO

2

SO2

8

NO2

Monthly Average AQI (Yilan)

2020/05 - 2025/04

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
Air quality source: CNEMC

*: primary pollution