Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
75
*
PM2.5
135
PM10
36
O3
1.8
CO
21
SO2
60
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
15 Dec
102
Light
Tue
16 Dec
82
Good
Wed
17 Dec
92
Good
Thu
18 Dec
116
Light
Fri
19 Dec
112
Light
Sat
20 Dec
94
Good
Sun
21 Dec
16
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