Air Quality
Excellent
No health implications.
18
PM2.5
35
PM10
106
O3
0.5
CO
3
SO2
29
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Jun
86
Good
Sun
29 Jun
82
Good
Mon
30 Jun
59
Good
Tue
1 Jul
58
Good
Wed
2 Jul
60
Good
Thu
3 Jul
55
Good
Fri
4 Jul
17
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