Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
25
PM2.5
55
PM10
169
O3
0.5
CO
3
SO2
14
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
13 May
106
Light
Wed
14 May
89
Good
Thu
15 May
88
Good
Fri
16 May
93
Good
Sat
17 May
60
Good
Sun
18 May
46
Excellent
Mon
19 May
46
Excellent
Air quality in the last 12 months (Xi'an)
|
2025/02
|
126
|
137
|
52
|
77
|
88
|
78
|
46
|
26
|
53
|
75
|
50
|
62
|
73
|
76
|
71
|
45
|
35
|
63
|
73
|
69
|
67
|
67
|
70
|
62
|
72
|
45
|
58
|
80
|
|||
|
2025/01
|
32
|
30
|
49
|
63
|
83
|
82
|
53
|
38
|
53
|
64
|
83
|
101
|
84
|
53
|
33
|
47
|
57
|
53
|
59
|
76
|
87
|
100
|
97
|
86
|
82
|
90
|
63
|
75
|
79
|
66
|
101
|
|
2024/12
|
38
|
23
|
21
|
19
|
25
|
28
|
42
|
48
|
62
|
58
|
44
|
53
|
64
|
39
|
25
|
30
|
43
|
57
|
62
|
61
|
58
|
46
|
52
|
45
|
46
|
30
|
29
|
37
|
48
|
46
|
31
|
|
2024/11
|
85
|
144
|
117
|
31
|
19
|
30
|
43
|
52
|
41
|
32
|
37
|
38
|
49
|
21
|
26
|
36
|
28
|
35
|
34
|
50
|
51
|
53
|
68
|
53
|
37
|
51
|
33
|
42
|
33
|
55
|
|
|
2024/10
|
18
|
28
|
28
|
33
|
41
|
44
|
32
|
40
|
45
|
27
|
32
|
40
|
56
|
44
|
20
|
38
|
64
|
43
|
28
|
45
|
17
|
35
|
37
|
52
|
70
|
83
|
35
|
46
|
66
|
74
|
78
|
|
2024/09
|
17
|
20
|
23
|
22
|
19
|
20
|
22
|
24
|
26
|
21
|
28
|
25
|
24
|
23
|
36
|
32
|
28
|
30
|
24
|
18
|
20
|
29
|
28
|
24
|
23
|
26
|
33
|
35
|
28
|
17
|
|
|
2024/08
|
15
|
20
|
16
|
23
|
13
|
15
|
27
|
33
|
25
|
26
|
22
|
26
|
20
|
22
|
28
|
29
|
33
|
32
|
21
|
26
|
12
|
16
|
21
|
27
|
17
|
21
|
20
|
21
|
24
|
30
|
22
|
|
2024/07
|
48
|
41
|
10
|
28
|
38
|
26
|
24
|
51
|
38
|
46
|
54
|
59
|
55
|
54
|
54
|
29
|
12
|
25
|
25
|
19
|
22
|
15
|
20
|
12
|
15
|
8
|
9
|
8
|
13
|
23
|
19
|
|
2024/06
|
27
|
16
|
24
|
24
|
32
|
20
|
23
|
17
|
20
|
25
|
27
|
31
|
28
|
13
|
14
|
16
|
24
|
28
|
38
|
27
|
31
|
41
|
34
|
8
|
12
|
24
|
35
|
30
|
17
|
23
|
|
|
2024/05
|
30
|
34
|
39
|
37
|
26
|
33
|
34
|
28
|
38
|
44
|
54
|
27
|
34
|
39
|
18
|
26
|
35
|
37
|
18
|
12
|
20
|
29
|
23
|
20
|
21
|
11
|
11
|
23
|
33
|
27
|
14
|
|
2024/04
|
57
|
80
|
61
|
83
|
110
|
61
|
104
|
84
|
87
|
155
|
45
|
48
|
37
|
31
|
102
|
110
|
52
|
44
|
56
|
171
|
97
|
44
|
41
|
32
|
42
|
47
|
44
|
20
|
29
|
38
|
|
|
2024/03
|
25
|
38
|
30
|
40
|
37
|
39
|
39
|
32
|
35
|
58
|
62
|
31
|
39
|
51
|
47
|
57
|
37
|
52
|
35
|
37
|
46
|
32
|
39
|
29
|
36
|
55
|
65
|
182
|
55
|
42
|
41
|
|
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