Air Quality
Excellent
No health implications.
18
PM2.5
26
PM10
66
O3
0.4
CO
6
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 Dec
55
Good
Fri
6 Dec
56
Good
Sat
7 Dec
55
Good
Sun
8 Dec
83
Good
Mon
9 Dec
83
Good
Tue
10 Dec
81
Good
Wed
11 Dec
89
Good
Air quality in the last 12 months (Yilan)
|
2024/10
|
18
|
27
|
21
|
30
|
44
|
36
|
35
|
50
|
49
|
44
|
22
|
33
|
41
|
48
|
23
|
26
|
42
|
41
|
28
|
41
|
31
|
33
|
38
|
46
|
59
|
60
|
52
|
58
|
67
|
60
|
61
|
|
2024/09
|
18
|
19
|
24
|
24
|
16
|
17
|
18
|
26
|
24
|
19
|
21
|
33
|
22
|
26
|
20
|
31
|
32
|
29
|
23
|
23
|
25
|
23
|
25
|
28
|
31
|
21
|
27
|
38
|
35
|
25
|
|
|
2024/08
|
13
|
13
|
14
|
18
|
14
|
15
|
24
|
25
|
23
|
28
|
15
|
16
|
19
|
30
|
27
|
32
|
27
|
34
|
15
|
18
|
25
|
24
|
22
|
24
|
25
|
22
|
23
|
20
|
25
|
22
|
20
|
|
2024/07
|
77
|
52
|
50
|
32
|
29
|
50
|
60
|
55
|
53
|
41
|
58
|
54
|
34
|
47
|
45
|
52
|
36
|
25
|
30
|
33
|
26
|
22
|
26
|
22
|
20
|
13
|
12
|
21
|
19
|
15
|
21
|
|
2024/06
|
17
|
14
|
19
|
17
|
27
|
31
|
37
|
27
|
21
|
21
|
29
|
20
|
19
|
11
|
13
|
14
|
16
|
20
|
28
|
24
|
17
|
14
|
11
|
13
|
16
|
20
|
20
|
47
|
41
|
58
|
|
|
2024/05
|
47
|
54
|
53
|
72
|
86
|
54
|
41
|
38
|
31
|
30
|
25
|
23
|
22
|
25
|
18
|
23
|
24
|
39
|
19
|
18
|
17
|
36
|
21
|
19
|
19
|
21
|
16
|
21
|
17
|
17
|
15
|
|
2024/04
|
33
|
38
|
49
|
33
|
40
|
60
|
25
|
28
|
46
|
67
|
79
|
69
|
57
|
70
|
71
|
56
|
32
|
52
|
39
|
66
|
129
|
133
|
101
|
82
|
68
|
52
|
42
|
43
|
49
|
45
|
|
|
2024/03
|
38
|
36
|
42
|
48
|
46
|
46
|
53
|
40
|
37
|
52
|
59
|
44
|
51
|
50
|
37
|
24
|
24
|
34
|
34
|
32
|
31
|
30
|
33
|
26
|
30
|
37
|
35
|
232
|
94
|
36
|
29
|
|
2024/02
|
55
|
80
|
87
|
94
|
99
|
115
|
93
|
92
|
139
|
223
|
123
|
63
|
78
|
45
|
37
|
39
|
49
|
43
|
38
|
36
|
38
|
36
|
41
|
58
|
67
|
53
|
52
|
54
|
51
|
||
|
2024/01
|
68
|
110
|
136
|
110
|
77
|
77
|
74
|
52
|
70
|
71
|
70
|
73
|
78
|
67
|
43
|
54
|
98
|
78
|
88
|
69
|
43
|
52
|
56
|
75
|
65
|
111
|
164
|
155
|
149
|
112
|
70
|
|
2023/12
|
55
|
73
|
68
|
42
|
91
|
58
|
42
|
51
|
53
|
40
|
47
|
56
|
58
|
65
|
51
|
33
|
43
|
65
|
74
|
52
|
56
|
64
|
81
|
108
|
87
|
76
|
78
|
106
|
125
|
83
|
55
|
|
2023/11
|
68
|
49
|
35
|
35
|
41
|
37
|
31
|
50
|
72
|
57
|
41
|
47
|
49
|
64
|
97
|
93
|
41
|
27
|
46
|
37
|
52
|
51
|
26
|
30
|
37
|
51
|
84
|
68
|
66
|
39
|
|
|
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