Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
25
PM2.5
71
*
PM10
148
O3
0.5
CO
10
SO2
13
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
4 May
97
Good
Mon
5 May
115
Light
Tue
6 May
82
Good
Wed
7 May
86
Good
Thu
8 May
79
Good
Fri
9 May
79
Good
Sat
10 May
16
Excellent
Air quality in the last 12 months (Xiaoyi)
|
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
|
|
|
2024/05
|
51
|
57
|
62
|
44
|
56
|
42
|
43
|
59
|
66
|
65
|
123
|
56
|
60
|
72
|
63
|
67
|
78
|
83
|
71
|
64
|
64
|
68
|
62
|
73
|
54
|
56
|
51
|
55
|
55
|
66
|
55
|
|
2024/04
|
90
|
103
|
69
|
63
|
69
|
71
|
69
|
70
|
78
|
70
|
68
|
68
|
69
|
61
|
98
|
59
|
76
|
73
|
57
|
37
|
61
|
97
|
115
|
72
|
76
|
78
|
75
|
69
|
57
|
39
|
|
|
2024/03
|
48
|
68
|
65
|
94
|
126
|
66
|
61
|
49
|
74
|
91
|
73
|
55
|
74
|
80
|
81
|
173
|
83
|
119
|
72
|
63
|
82
|
135
|
101
|
42
|
50
|
67
|
72
|
107
|
86
|
59
|
72
|
|
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