Air Quality
Excellent
No health implications.
14
PM2.5
17
PM10
65
O3
0.6
CO
5
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Jun
58
Good
Mon
9 Jun
75
Good
Tue
10 Jun
81
Good
Wed
11 Jun
92
Good
Thu
12 Jun
106
Light
Fri
13 Jun
38
Excellent
Sat
14 Jun
34
Excellent
Air quality in the last 12 months (Xiaochang)
|
2025/04
|
67
|
74
|
64
|
97
|
86
|
73
|
71
|
73
|
69
|
59
|
57
|
204
|
126
|
100
|
61
|
61
|
71
|
72
|
59
|
54
|
45
|
56
|
70
|
73
|
75
|
57
|
50
|
50
|
45
|
41
|
|
|
2025/03
|
98
|
50
|
25
|
44
|
55
|
79
|
94
|
96
|
104
|
94
|
79
|
95
|
95
|
56
|
46
|
54
|
44
|
54
|
51
|
57
|
57
|
63
|
75
|
68
|
55
|
69
|
116
|
73
|
73
|
75
|
77
|
|
2025/02
|
84
|
77
|
102
|
92
|
66
|
46
|
85
|
53
|
59
|
76
|
87
|
99
|
83
|
95
|
90
|
98
|
77
|
66
|
100
|
99
|
79
|
94
|
125
|
120
|
109
|
107
|
75
|
93
|
|||
|
2025/01
|
144
|
169
|
166
|
212
|
89
|
86
|
62
|
69
|
56
|
60
|
83
|
96
|
109
|
127
|
69
|
70
|
86
|
106
|
169
|
133
|
141
|
160
|
188
|
78
|
26
|
50
|
64
|
76
|
194
|
93
|
130
|
|
2024/12
|
83
|
98
|
115
|
87
|
63
|
62
|
67
|
63
|
58
|
84
|
86
|
106
|
91
|
58
|
64
|
83
|
107
|
83
|
76
|
111
|
94
|
55
|
72
|
98
|
122
|
138
|
174
|
57
|
73
|
114
|
123
|
|
2024/11
|
121
|
110
|
115
|
98
|
58
|
68
|
61
|
67
|
68
|
61
|
68
|
71
|
61
|
81
|
109
|
66
|
30
|
30
|
31
|
41
|
51
|
67
|
92
|
75
|
38
|
38
|
53
|
58
|
58
|
71
|
|
|
2024/10
|
35
|
60
|
45
|
47
|
64
|
43
|
26
|
41
|
64
|
110
|
92
|
84
|
69
|
62
|
91
|
65
|
35
|
18
|
31
|
41
|
32
|
33
|
49
|
57
|
50
|
55
|
110
|
136
|
94
|
79
|
50
|
|
2024/09
|
41
|
48
|
33
|
38
|
47
|
38
|
42
|
46
|
47
|
41
|
46
|
26
|
21
|
34
|
45
|
35
|
39
|
30
|
21
|
34
|
38
|
35
|
39
|
42
|
63
|
55
|
62
|
43
|
41
|
45
|
|
|
2024/08
|
12
|
15
|
20
|
17
|
19
|
21
|
23
|
30
|
27
|
30
|
81
|
63
|
29
|
33
|
26
|
21
|
28
|
40
|
27
|
21
|
22
|
35
|
29
|
31
|
30
|
36
|
19
|
22
|
32
|
31
|
37
|
|
2024/07
|
29
|
28
|
26
|
19
|
19
|
17
|
20
|
19
|
19
|
21
|
26
|
28
|
13
|
11
|
30
|
35
|
24
|
17
|
17
|
17
|
19
|
21
|
22
|
33
|
28
|
22
|
15
|
11
|
12
|
17
|
15
|
|
2024/06
|
44
|
43
|
34
|
34
|
32
|
44
|
38
|
42
|
32
|
26
|
27
|
33
|
38
|
38
|
39
|
43
|
37
|
36
|
18
|
22
|
23
|
22
|
25
|
44
|
31
|
36
|
23
|
10
|
14
|
23
|
|
|
2024/05
|
52
|
48
|
40
|
35
|
47
|
44
|
50
|
48
|
57
|
56
|
88
|
120
|
95
|
72
|
92
|
58
|
67
|
60
|
66
|
50
|
51
|
36
|
28
|
42
|
39
|
46
|
44
|
31
|
38
|
45
|
54
|
|
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