Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
22
PM2.5
52
PM10
182
O3
0.5
CO
8
SO2
19
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
24 Jun
137
Light
Wed
25 Jun
109
Light
Thu
26 Jun
111
Light
Fri
27 Jun
134
Light
Sat
28 Jun
133
Light
Sun
29 Jun
128
Light
Mon
30 Jun
20
Excellent
Xiaoyi Air quality rank
Air quality in the last 12 months (Xiaoyi)
|
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
|
|
2024/11
|
60
|
81
|
83
|
48
|
57
|
66
|
84
|
94
|
107
|
116
|
130
|
115
|
68
|
69
|
81
|
74
|
60
|
61
|
60
|
62
|
77
|
72
|
91
|
117
|
52
|
55
|
76
|
40
|
51
|
69
|
|
|
2024/10
|
71
|
42
|
43
|
64
|
72
|
79
|
54
|
50
|
54
|
48
|
55
|
68
|
76
|
90
|
68
|
99
|
71
|
25
|
31
|
29
|
57
|
43
|
56
|
56
|
76
|
80
|
59
|
66
|
70
|
67
|
59
|
|
2024/09
|
51
|
37
|
50
|
54
|
23
|
49
|
45
|
55
|
56
|
34
|
38
|
39
|
50
|
43
|
51
|
55
|
54
|
55
|
44
|
41
|
26
|
44
|
59
|
65
|
67
|
64
|
79
|
70
|
38
|
25
|
|
|
2024/08
|
46
|
54
|
45
|
43
|
40
|
38
|
27
|
37
|
37
|
56
|
26
|
34
|
39
|
46
|
48
|
46
|
49
|
45
|
46
|
34
|
42
|
48
|
54
|
56
|
57
|
25
|
32
|
41
|
51
|
52
|
59
|
|
2024/07
|
52
|
44
|
48
|
46
|
53
|
49
|
49
|
52
|
49
|
52
|
52
|
52
|
55
|
59
|
66
|
38
|
39
|
43
|
48
|
37
|
46
|
58
|
54
|
37
|
44
|
47
|
53
|
51
|
51
|
23
|
39
|
|
2024/06
|
56
|
56
|
53
|
59
|
53
|
62
|
50
|
46
|
59
|
58
|
65
|
59
|
67
|
54
|
51
|
59
|
52
|
57
|
53
|
54
|
47
|
72
|
88
|
96
|
85
|
86
|
62
|
69
|
64
|
51
|
|
|
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