Air Quality
Excellent
No health implications.
23
PM2.5
27
PM10
49
O3
0.6
CO
8
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 May
65
Good
Thu
21 May
84
Good
Fri
22 May
81
Good
Sat
23 May
97
Good
Sun
24 May
88
Good
Mon
25 May
66
Good
Tue
26 May
44
Excellent
Air quality in the last 12 months (Xuecheng)
|
2026/04
|
78
|
72
|
69
|
63
|
87
|
69
|
57
|
45
|
42
|
58
|
57
|
56
|
37
|
58
|
58
|
59
|
93
|
81
|
54
|
72
|
77
|
42
|
49
|
47
|
55
|
61
|
74
|
56
|
48
|
53
|
|
|
2026/03
|
50
|
51
|
150
|
108
|
44
|
75
|
59
|
52
|
98
|
104
|
81
|
118
|
91
|
115
|
151
|
110
|
89
|
74
|
59
|
103
|
134
|
101
|
122
|
87
|
94
|
80
|
107
|
95
|
82
|
104
|
122
|
|
2026/02
|
103
|
109
|
135
|
108
|
149
|
60
|
54
|
55
|
63
|
83
|
131
|
100
|
98
|
85
|
90
|
45
|
199
|
129
|
97
|
74
|
61
|
270
|
71
|
46
|
60
|
51
|
62
|
92
|
|||
|
2026/01
|
59
|
72
|
105
|
125
|
189
|
214
|
99
|
67
|
78
|
112
|
60
|
80
|
115
|
132
|
170
|
148
|
53
|
48
|
50
|
41
|
49
|
79
|
101
|
145
|
109
|
80
|
153
|
86
|
63
|
80
|
76
|
|
2025/12
|
109
|
77
|
59
|
93
|
71
|
119
|
168
|
70
|
78
|
90
|
113
|
50
|
72
|
80
|
79
|
111
|
189
|
95
|
158
|
136
|
64
|
45
|
68
|
68
|
63
|
48
|
64
|
95
|
112
|
142
|
61
|
|
2025/11
|
132
|
73
|
65
|
77
|
91
|
51
|
59
|
58
|
89
|
72
|
62
|
69
|
105
|
175
|
198
|
147
|
44
|
60
|
76
|
84
|
140
|
134
|
108
|
127
|
56
|
94
|
213
|
143
|
116
|
166
|
|
|
2025/10
|
38
|
17
|
33
|
40
|
43
|
36
|
46
|
52
|
41
|
54
|
49
|
27
|
27
|
46
|
36
|
35
|
40
|
34
|
38
|
39
|
43
|
47
|
44
|
54
|
103
|
97
|
87
|
64
|
60
|
63
|
136
|
|
2025/09
|
35
|
42
|
36
|
36
|
53
|
42
|
57
|
50
|
43
|
53
|
38
|
16
|
48
|
54
|
43
|
29
|
25
|
25
|
15
|
43
|
48
|
35
|
22
|
29
|
47
|
43
|
42
|
34
|
58
|
46
|
|
|
2025/08
|
22
|
30
|
36
|
45
|
43
|
36
|
50
|
40
|
26
|
24
|
20
|
26
|
18
|
31
|
38
|
36
|
42
|
50
|
48
|
43
|
39
|
41
|
35
|
38
|
61
|
53
|
40
|
52
|
71
|
36
|
27
|
|
2025/07
|
36
|
34
|
35
|
31
|
36
|
38
|
47
|
39
|
34
|
53
|
57
|
40
|
49
|
36
|
44
|
40
|
43
|
48
|
56
|
36
|
33
|
32
|
31
|
32
|
38
|
32
|
29
|
33
|
33
|
33
|
31
|
|
2025/06
|
52
|
43
|
60
|
65
|
73
|
71
|
53
|
78
|
66
|
51
|
76
|
51
|
56
|
47
|
51
|
55
|
47
|
41
|
25
|
25
|
44
|
52
|
50
|
43
|
54
|
50
|
39
|
35
|
13
|
29
|
|
|
2025/05
|
65
|
81
|
48
|
54
|
55
|
78
|
79
|
59
|
18
|
32
|
52
|
55
|
58
|
61
|
79
|
90
|
101
|
68
|
84
|
68
|
65
|
74
|
74
|
59
|
52
|
56
|
63
|
55
|
58
|
63
|
71
|
|
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