Air Quality
Excellent
No health implications.
17
PM2.5
29
PM10
114
O3
0.5
CO
6
SO2
28
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Jun
87
Good
Sat
14 Jun
62
Good
Sun
15 Jun
49
Excellent
Mon
16 Jun
58
Good
Tue
17 Jun
57
Good
Wed
18 Jun
62
Good
Thu
19 Jun
35
Excellent
Air quality in the last 12 months (Xi'an)
|
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
|
|
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
|
|
|
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