Air Quality
Excellent
No health implications.
9
PM2.5
18
PM10
12
O3
0.1
CO
3
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jun
55
Good
Tue
16 Jun
60
Good
Wed
17 Jun
54
Good
Thu
18 Jun
48
Excellent
Fri
19 Jun
54
Good
Sat
20 Jun
32
Excellent
Sun
21 Jun
48
Excellent
Air quality in the last 12 months (Yilan)
|
2026/05
|
33
|
34
|
29
|
34
|
57
|
31
|
26
|
25
|
30
|
40
|
41
|
48
|
110
|
42
|
37
|
33
|
31
|
25
|
44
|
35
|
39
|
35
|
34
|
31
|
34
|
25
|
23
|
22
|
25
|
22
|
33
|
|
2026/04
|
83
|
179
|
99
|
45
|
44
|
36
|
25
|
48
|
58
|
31
|
30
|
32
|
26
|
37
|
48
|
53
|
54
|
33
|
35
|
56
|
43
|
26
|
33
|
38
|
30
|
28
|
34
|
35
|
34
|
45
|
|
|
2026/03
|
38
|
40
|
39
|
47
|
50
|
50
|
44
|
39
|
46
|
38
|
52
|
47
|
48
|
48
|
50
|
54
|
80
|
77
|
64
|
52
|
131
|
122
|
76
|
104
|
158
|
135
|
121
|
141
|
96
|
38
|
76
|
|
2026/02
|
61
|
65
|
58
|
74
|
42
|
31
|
37
|
39
|
60
|
85
|
74
|
57
|
82
|
58
|
35
|
51
|
82
|
30
|
50
|
51
|
77
|
71
|
61
|
46
|
49
|
55
|
42
|
37
|
|||
|
2026/01
|
34
|
42
|
63
|
53
|
46
|
59
|
49
|
38
|
62
|
67
|
59
|
66
|
67
|
48
|
64
|
56
|
62
|
67
|
76
|
48
|
41
|
40
|
50
|
51
|
40
|
45
|
56
|
70
|
49
|
43
|
45
|
|
2025/12
|
55
|
48
|
43
|
42
|
44
|
50
|
68
|
66
|
55
|
47
|
38
|
42
|
68
|
94
|
87
|
48
|
51
|
78
|
63
|
48
|
45
|
71
|
57
|
62
|
62
|
44
|
60
|
64
|
51
|
46
|
41
|
|
2025/11
|
90
|
52
|
43
|
50
|
99
|
93
|
58
|
82
|
62
|
31
|
57
|
62
|
48
|
61
|
68
|
75
|
52
|
49
|
85
|
93
|
55
|
129
|
156
|
105
|
67
|
97
|
88
|
72
|
60
|
50
|
|
|
2025/10
|
27
|
26
|
37
|
30
|
25
|
21
|
32
|
29
|
31
|
39
|
58
|
33
|
35
|
39
|
45
|
29
|
45
|
26
|
26
|
26
|
31
|
38
|
46
|
47
|
141
|
194
|
82
|
49
|
101
|
87
|
62
|
|
2025/09
|
24
|
19
|
18
|
31
|
28
|
17
|
16
|
16
|
16
|
18
|
22
|
27
|
32
|
30
|
19
|
20
|
16
|
16
|
19
|
24
|
21
|
20
|
24
|
29
|
21
|
19
|
27
|
26
|
29
|
39
|
|
|
2025/08
|
16
|
17
|
16
|
14
|
13
|
13
|
13
|
12
|
14
|
15
|
12
|
24
|
25
|
13
|
16
|
13
|
14
|
17
|
16
|
17
|
16
|
14
|
18
|
16
|
14
|
12
|
17
|
20
|
15
|
16
|
27
|
|
2025/07
|
17
|
16
|
14
|
18
|
18
|
15
|
14
|
17
|
15
|
13
|
19
|
19
|
16
|
14
|
13
|
12
|
15
|
17
|
17
|
11
|
11
|
21
|
19
|
20
|
14
|
12
|
16
|
12
|
18
|
9
|
13
|
|
2025/06
|
37
|
25
|
21
|
15
|
17
|
16
|
16
|
23
|
24
|
19
|
15
|
18
|
24
|
28
|
21
|
21
|
13
|
16
|
16
|
20
|
10
|
13
|
25
|
32
|
40
|
37
|
33
|
32
|
22
|
22
|
|
|
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