Air Quality
Excellent
No health implications.
2
PM2.5
12
PM10
46
O3
0.3
CO
4
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Aug
54
Good
Tue
4 Aug
53
Good
Wed
5 Aug
59
Good
Thu
6 Aug
53
Good
Fri
7 Aug
56
Good
Sat
8 Aug
51
Good
Sun
9 Aug
17
Excellent
Air quality in the last 12 months (Yilan)
|
2026/06
|
46
|
25
|
23
|
16
|
15
|
18
|
18
|
16
|
19
|
23
|
26
|
27
|
23
|
21
|
26
|
24
|
23
|
27
|
34
|
27
|
23
|
26
|
28
|
36
|
33
|
28
|
25
|
24
|
27
|
34
|
|
|
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
|
|
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