Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
42
PM2.5
89
*
PM10
40
O3
0.8
CO
7
SO2
37
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
17 Mar
106
Light
Wed
18 Mar
77
Good
Thu
19 Mar
85
Good
Fri
20 Mar
108
Light
Sat
21 Mar
109
Light
Sun
22 Mar
81
Good
Mon
23 Mar
45
Excellent
Air quality in the last 12 months (Xiaoyi)
|
2026/02
|
92
|
56
|
66
|
80
|
88
|
80
|
45
|
48
|
65
|
97
|
77
|
88
|
84
|
82
|
53
|
91
|
144
|
65
|
54
|
82
|
208
|
318
|
96
|
103
|
76
|
82
|
65
|
39
|
|||
|
2026/01
|
101
|
114
|
116
|
156
|
102
|
41
|
64
|
69
|
111
|
85
|
53
|
91
|
98
|
124
|
142
|
85
|
89
|
95
|
59
|
52
|
54
|
61
|
71
|
73
|
174
|
152
|
112
|
114
|
145
|
185
|
134
|
|
2025/12
|
84
|
52
|
45
|
60
|
78
|
87
|
84
|
70
|
81
|
99
|
75
|
59
|
70
|
90
|
81
|
90
|
83
|
75
|
91
|
60
|
54
|
86
|
129
|
78
|
49
|
53
|
71
|
73
|
66
|
60
|
73
|
|
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
|
|
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