Air Quality
Excellent
No health implications.
21
PM2.5
30
PM10
159
O3
0.5
CO
3
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Sep
41
Excellent
Thu
4 Sep
86
Good
Fri
5 Sep
40
Excellent
Sat
6 Sep
37
Excellent
Sun
7 Sep
48
Excellent
Mon
8 Sep
59
Good
Tue
9 Sep
38
Excellent
Air quality in the last 12 months (Xicheng)
|
2025/06
|
68
|
19
|
14
|
25
|
56
|
34
|
27
|
50
|
47
|
28
|
57
|
72
|
64
|
45
|
13
|
16
|
40
|
63
|
36
|
29
|
20
|
36
|
53
|
57
|
61
|
58
|
61
|
45
|
63
|
49
|
|
|
2025/05
|
28
|
39
|
22
|
51
|
52
|
24
|
72
|
99
|
32
|
43
|
59
|
72
|
84
|
30
|
44
|
63
|
50
|
50
|
56
|
98
|
74
|
64
|
48
|
37
|
56
|
59
|
51
|
55
|
64
|
65
|
78
|
|
2025/04
|
46
|
23
|
63
|
70
|
24
|
73
|
62
|
43
|
53
|
79
|
115
|
91
|
61
|
63
|
53
|
91
|
58
|
24
|
45
|
71
|
91
|
24
|
52
|
28
|
55
|
89
|
23
|
60
|
59
|
42
|
|
|
2025/03
|
231
|
74
|
33
|
51
|
80
|
18
|
86
|
118
|
151
|
146
|
211
|
63
|
110
|
67
|
51
|
18
|
31
|
36
|
43
|
33
|
29
|
51
|
112
|
88
|
50
|
79
|
51
|
27
|
22
|
45
|
68
|
|
2025/02
|
86
|
52
|
11
|
18
|
25
|
63
|
23
|
15
|
20
|
68
|
129
|
24
|
70
|
62
|
91
|
31
|
20
|
34
|
22
|
16
|
19
|
17
|
21
|
52
|
47
|
52
|
114
|
137
|
|||
|
2025/01
|
41
|
21
|
38
|
57
|
48
|
15
|
13
|
15
|
15
|
23
|
34
|
34
|
51
|
22
|
28
|
48
|
69
|
80
|
35
|
60
|
46
|
57
|
74
|
114
|
132
|
103
|
21
|
23
|
104
|
68
|
77
|
|
2024/12
|
54
|
15
|
39
|
37
|
17
|
26
|
15
|
29
|
49
|
34
|
36
|
69
|
28
|
26
|
33
|
36
|
18
|
17
|
45
|
38
|
18
|
29
|
44
|
75
|
66
|
29
|
19
|
39
|
61
|
66
|
49
|
|
2024/11
|
158
|
154
|
69
|
11
|
46
|
62
|
100
|
151
|
170
|
135
|
80
|
105
|
87
|
54
|
76
|
46
|
30
|
45
|
58
|
71
|
24
|
36
|
51
|
87
|
43
|
10
|
16
|
18
|
32
|
52
|
|
|
2024/10
|
8
|
16
|
34
|
65
|
86
|
83
|
23
|
30
|
90
|
20
|
57
|
91
|
127
|
146
|
44
|
47
|
60
|
44
|
8
|
37
|
54
|
24
|
44
|
68
|
172
|
233
|
24
|
48
|
105
|
131
|
155
|
|
2024/09
|
23
|
12
|
34
|
64
|
16
|
22
|
32
|
30
|
64
|
13
|
23
|
26
|
34
|
19
|
31
|
44
|
26
|
41
|
49
|
27
|
8
|
15
|
39
|
59
|
49
|
42
|
45
|
56
|
75
|
8
|
|
|
2024/08
|
18
|
37
|
33
|
29
|
13
|
40
|
46
|
34
|
49
|
24
|
23
|
9
|
15
|
27
|
48
|
45
|
39
|
24
|
25
|
13
|
15
|
23
|
41
|
26
|
34
|
15
|
17
|
30
|
42
|
51
|
52
|
|
2024/07
|
28
|
38
|
40
|
66
|
83
|
32
|
35
|
35
|
69
|
77
|
78
|
47
|
57
|
81
|
55
|
39
|
19
|
27
|
49
|
32
|
45
|
32
|
55
|
43
|
18
|
19
|
27
|
28
|
40
|
13
|
24
|
|
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