Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
50
PM2.5
102
*
PM10
42
O3
0.6
CO
25
SO2
26
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
17 Apr
86
Good
Fri
18 Apr
61
Good
Sat
19 Apr
92
Good
Sun
20 Apr
63
Good
Mon
21 Apr
66
Good
Tue
22 Apr
58
Good
Wed
23 Apr
19
Excellent
Air quality in the last 12 months (Xi'an)
|
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
|
|
2024/11
|
64
|
60
|
51
|
39
|
34
|
43
|
83
|
103
|
98
|
70
|
69
|
66
|
77
|
74
|
66
|
55
|
37
|
37
|
51
|
66
|
63
|
51
|
53
|
68
|
88
|
50
|
33
|
50
|
43
|
40
|
|
|
2024/10
|
28
|
32
|
45
|
41
|
48
|
50
|
32
|
49
|
54
|
49
|
34
|
48
|
61
|
44
|
30
|
36
|
59
|
58
|
34
|
41
|
45
|
48
|
39
|
50
|
64
|
48
|
39
|
53
|
72
|
61
|
69
|
|
2024/09
|
26
|
25
|
27
|
33
|
29
|
28
|
29
|
31
|
29
|
29
|
30
|
32
|
28
|
29
|
30
|
37
|
31
|
30
|
37
|
32
|
33
|
36
|
38
|
44
|
41
|
33
|
45
|
48
|
38
|
31
|
|
|
2024/08
|
39
|
37
|
35
|
32
|
28
|
34
|
39
|
35
|
35
|
38
|
30
|
22
|
34
|
29
|
31
|
32
|
35
|
28
|
23
|
25
|
21
|
24
|
28
|
36
|
43
|
29
|
32
|
25
|
33
|
29
|
28
|
|
2024/07
|
63
|
70
|
55
|
36
|
42
|
48
|
41
|
62
|
61
|
65
|
85
|
77
|
59
|
63
|
63
|
52
|
41
|
36
|
41
|
44
|
39
|
35
|
32
|
35
|
38
|
33
|
30
|
30
|
31
|
32
|
34
|
|
2024/06
|
21
|
33
|
37
|
34
|
35
|
37
|
39
|
35
|
31
|
30
|
44
|
38
|
32
|
25
|
24
|
26
|
27
|
30
|
42
|
46
|
44
|
27
|
23
|
21
|
28
|
32
|
35
|
57
|
51
|
50
|
|
|
2024/05
|
44
|
47
|
64
|
69
|
65
|
63
|
45
|
40
|
39
|
49
|
53
|
42
|
48
|
48
|
27
|
28
|
29
|
46
|
31
|
27
|
24
|
44
|
37
|
29
|
29
|
31
|
29
|
32
|
33
|
29
|
31
|
|
2024/04
|
57
|
46
|
50
|
46
|
58
|
76
|
40
|
40
|
50
|
79
|
82
|
78
|
66
|
99
|
78
|
91
|
41
|
93
|
63
|
142
|
105
|
81
|
55
|
59
|
69
|
61
|
65
|
61
|
75
|
46
|
|
|
2024/03
|
43
|
40
|
45
|
42
|
42
|
48
|
48
|
46
|
45
|
60
|
62
|
49
|
56
|
43
|
46
|
43
|
40
|
46
|
47
|
45
|
48
|
51
|
43
|
39
|
54
|
60
|
56
|
134
|
94
|
53
|
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