Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
13
PM2.5
90
*
PM10
73
O3
0.3
CO
2
SO2
3
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
10 Jan
79
Good
Sun
11 Jan
76
Good
Mon
12 Jan
71
Good
Tue
13 Jan
78
Good
Wed
14 Jan
74
Good
Thu
15 Jan
91
Good
Fri
16 Jan
39
Excellent
Xiaoyi Air quality rank
Air quality in the last 12 months (Xiaoyi)
|
2025/11
|
53
|
50
|
74
|
82
|
93
|
103
|
61
|
76
|
85
|
70
|
79
|
73
|
59
|
70
|
80
|
60
|
25
|
33
|
60
|
69
|
62
|
72
|
98
|
139
|
78
|
192
|
174
|
119
|
106
|
82
|
|
|
2025/10
|
57
|
31
|
48
|
50
|
52
|
19
|
32
|
26
|
14
|
18
|
34
|
25
|
42
|
57
|
48
|
60
|
35
|
39
|
49
|
50
|
57
|
65
|
71
|
89
|
79
|
65
|
51
|
66
|
73
|
89
|
71
|
|
2025/09
|
52
|
52
|
27
|
32
|
37
|
64
|
66
|
60
|
57
|
54
|
39
|
28
|
54
|
57
|
62
|
27
|
20
|
22
|
22
|
53
|
36
|
29
|
52
|
50
|
52
|
48
|
41
|
62
|
68
|
68
|
|
|
2025/08
|
56
|
53
|
52
|
48
|
39
|
38
|
42
|
47
|
25
|
37
|
47
|
55
|
46
|
56
|
41
|
19
|
40
|
42
|
45
|
29
|
29
|
40
|
23
|
32
|
42
|
38
|
36
|
37
|
43
|
52
|
58
|
|
2025/07
|
41
|
35
|
26
|
34
|
22
|
34
|
37
|
45
|
41
|
47
|
61
|
59
|
55
|
53
|
60
|
43
|
41
|
48
|
57
|
44
|
37
|
50
|
33
|
26
|
32
|
40
|
38
|
51
|
33
|
43
|
45
|
|
2025/06
|
58
|
43
|
38
|
36
|
50
|
48
|
59
|
53
|
61
|
44
|
57
|
60
|
55
|
34
|
28
|
37
|
41
|
54
|
44
|
44
|
42
|
50
|
51
|
51
|
58
|
50
|
51
|
38
|
42
|
49
|
|
|
2025/05
|
66
|
83
|
34
|
62
|
167
|
89
|
85
|
75
|
44
|
47
|
46
|
58
|
76
|
45
|
50
|
83
|
158
|
60
|
71
|
71
|
74
|
77
|
35
|
46
|
53
|
48
|
45
|
57
|
64
|
62
|
44
|
|
2025/04
|
64
|
50
|
87
|
105
|
60
|
81
|
99
|
85
|
64
|
49
|
159
|
186
|
79
|
35
|
53
|
107
|
179
|
106
|
75
|
76
|
94
|
99
|
91
|
51
|
62
|
72
|
55
|
49
|
62
|
102
|
|
|
2025/03
|
93
|
77
|
41
|
56
|
77
|
62
|
78
|
72
|
78
|
84
|
153
|
264
|
97
|
93
|
54
|
34
|
43
|
44
|
47
|
50
|
60
|
75
|
130
|
406
|
429
|
251
|
229
|
150
|
43
|
45
|
56
|
|
2025/02
|
137
|
94
|
29
|
42
|
34
|
101
|
46
|
36
|
50
|
70
|
79
|
75
|
59
|
65
|
78
|
73
|
59
|
77
|
70
|
86
|
96
|
82
|
45
|
50
|
62
|
66
|
75
|
70
|
|||
|
2025/01
|
75
|
62
|
61
|
78
|
82
|
53
|
44
|
41
|
44
|
54
|
65
|
52
|
90
|
64
|
56
|
58
|
66
|
75
|
68
|
67
|
74
|
89
|
127
|
127
|
91
|
83
|
32
|
51
|
168
|
105
|
141
|
|
2024/12
|
69
|
57
|
60
|
50
|
42
|
49
|
41
|
45
|
67
|
69
|
105
|
109
|
83
|
61
|
65
|
64
|
65
|
52
|
69
|
72
|
44
|
60
|
74
|
104
|
112
|
62
|
47
|
56
|
69
|
78
|
70
|
|
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