Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
38
PM2.5
71
*
PM10
78
O3
0.6
CO
9
SO2
22
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
26 Apr
75
Good
Sat
27 Apr
72
Good
Sun
28 Apr
80
Good
Mon
29 Apr
72
Good
Tue
30 Apr
77
Good
Wed
1 May
84
Good
Air quality in the last 12 months (Yilan)
|
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
|
|
|
2023/10
|
16
|
25
|
26
|
19
|
21
|
25
|
30
|
41
|
43
|
41
|
39
|
42
|
42
|
50
|
36
|
28
|
33
|
36
|
21
|
19
|
21
|
23
|
32
|
60
|
65
|
35
|
40
|
41
|
55
|
102
|
100
|
|
2023/09
|
15
|
19
|
28
|
32
|
21
|
22
|
25
|
33
|
29
|
29
|
24
|
16
|
19
|
23
|
22
|
23
|
33
|
28
|
18
|
18
|
22
|
19
|
21
|
27
|
31
|
28
|
23
|
19
|
19
|
16
|
|
|
2023/08
|
23
|
18
|
14
|
15
|
12
|
16
|
14
|
14
|
19
|
23
|
16
|
17
|
15
|
17
|
26
|
26
|
25
|
26
|
20
|
24
|
24
|
24
|
19
|
20
|
20
|
18
|
17
|
20
|
17
|
14
|
19
|
|
2023/07
|
26
|
26
|
25
|
27
|
26
|
24
|
26
|
30
|
28
|
24
|
23
|
30
|
40
|
29
|
16
|
12
|
14
|
19
|
23
|
28
|
32
|
26
|
16
|
19
|
28
|
35
|
28
|
24
|
23
|
20
|
20
|
|
2023/06
|
21
|
18
|
16
|
20
|
20
|
20
|
26
|
26
|
23
|
26
|
29
|
27
|
34
|
32
|
29
|
43
|
28
|
25
|
32
|
33
|
24
|
21
|
28
|
28
|
40
|
63
|
27
|
18
|
26
|
28
|
|
|
2023/05
|
26
|
37
|
67
|
39
|
32
|
31
|
36
|
35
|
26
|
30
|
34
|
42
|
34
|
33
|
30
|
30
|
27
|
31
|
32
|
75
|
120
|
26
|
30
|
38
|
44
|
35
|
26
|
23
|
23
|
23
|
28
|
|
2023/04
|
64
|
122
|
156
|
58
|
88
|
91
|
94
|
65
|
100
|
154
|
146
|
106
|
41
|
56
|
96
|
45
|
44
|
51
|
36
|
96
|
38
|
29
|
30
|
40
|
52
|
30
|
40
|
33
|
36
|
25
|
|
|
2023/03
|
45
|
40
|
42
|
39
|
55
|
88
|
49
|
34
|
40
|
49
|
45
|
43
|
36
|
41
|
50
|
36
|
33
|
36
|
39
|
68
|
88
|
221
|
170
|
53
|
54
|
56
|
57
|
70
|
71
|
82
|
75
|
|
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