Air Quality
Excellent
No health implications.
20
PM2.5
35
PM10
59
O3
0.3
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Dec
60
Good
Wed
17 Dec
64
Good
Thu
18 Dec
63
Good
Fri
19 Dec
62
Good
Sat
20 Dec
66
Good
Sun
21 Dec
63
Good
Mon
22 Dec
18
Excellent
Xi'an Air quality rank
Air quality in the last 12 months (Xi'an)
|
2025/11
|
65
|
59
|
52
|
51
|
77
|
87
|
45
|
54
|
54
|
32
|
53
|
72
|
51
|
88
|
116
|
112
|
43
|
76
|
45
|
76
|
74
|
66
|
76
|
119
|
52
|
76
|
89
|
50
|
62
|
42
|
|
|
2025/10
|
33
|
39
|
42
|
35
|
27
|
30
|
31
|
38
|
29
|
37
|
53
|
36
|
46
|
47
|
51
|
35
|
42
|
35
|
35
|
29
|
37
|
43
|
48
|
58
|
76
|
75
|
96
|
95
|
163
|
51
|
43
|
|
2025/09
|
30
|
29
|
29
|
28
|
30
|
33
|
35
|
32
|
28
|
31
|
31
|
35
|
45
|
37
|
29
|
28
|
24
|
26
|
27
|
34
|
36
|
28
|
34
|
37
|
26
|
27
|
28
|
32
|
44
|
42
|
|
|
2025/08
|
26
|
27
|
26
|
25
|
21
|
25
|
23
|
20
|
27
|
26
|
29
|
26
|
29
|
26
|
25
|
32
|
26
|
22
|
25
|
25
|
22
|
24
|
24
|
26
|
29
|
28
|
26
|
26
|
22
|
26
|
38
|
|
2025/07
|
17
|
20
|
22
|
25
|
23
|
22
|
20
|
30
|
25
|
23
|
20
|
20
|
25
|
26
|
21
|
19
|
17
|
20
|
18
|
23
|
26
|
21
|
30
|
25
|
27
|
28
|
29
|
26
|
25
|
17
|
24
|
|
2025/06
|
41
|
34
|
35
|
26
|
29
|
25
|
26
|
27
|
30
|
26
|
22
|
22
|
29
|
34
|
28
|
24
|
24
|
34
|
23
|
27
|
20
|
22
|
24
|
31
|
34
|
28
|
36
|
36
|
24
|
24
|
|
|
2025/05
|
32
|
29
|
31
|
28
|
26
|
34
|
39
|
46
|
44
|
27
|
41
|
39
|
44
|
35
|
22
|
30
|
39
|
26
|
25
|
28
|
39
|
38
|
26
|
38
|
29
|
29
|
29
|
40
|
37
|
45
|
44
|
|
2025/04
|
55
|
47
|
51
|
71
|
65
|
30
|
30
|
48
|
53
|
58
|
81
|
83
|
36
|
30
|
32
|
31
|
69
|
56
|
33
|
54
|
79
|
32
|
35
|
41
|
48
|
26
|
35
|
65
|
81
|
48
|
|
|
2025/03
|
44
|
34
|
42
|
46
|
49
|
49
|
39
|
65
|
90
|
78
|
91
|
68
|
34
|
31
|
33
|
36
|
35
|
49
|
70
|
70
|
93
|
27
|
43
|
63
|
53
|
56
|
40
|
28
|
34
|
36
|
50
|
|
2025/02
|
70
|
102
|
71
|
53
|
44
|
43
|
47
|
45
|
49
|
60
|
71
|
69
|
47
|
55
|
82
|
75
|
45
|
37
|
44
|
43
|
46
|
43
|
44
|
47
|
62
|
47
|
54
|
78
|
|||
|
2025/01
|
62
|
63
|
57
|
65
|
93
|
85
|
67
|
66
|
49
|
57
|
80
|
92
|
87
|
67
|
48
|
45
|
73
|
105
|
87
|
93
|
119
|
125
|
100
|
87
|
90
|
127
|
64
|
52
|
78
|
49
|
55
|
|
2024/12
|
55
|
39
|
32
|
31
|
33
|
34
|
44
|
47
|
69
|
67
|
38
|
53
|
55
|
53
|
34
|
39
|
44
|
44
|
58
|
69
|
55
|
49
|
45
|
58
|
62
|
41
|
38
|
42
|
59
|
85
|
77
|
|
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