Air Quality
Excellent
No health implications.
4
PM2.5
11
PM10
104
O3
0.4
CO
3
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 Jun
55
Good
Thu
12 Jun
107
Light
Fri
13 Jun
107
Light
Sat
14 Jun
90
Good
Sun
15 Jun
91
Good
Mon
16 Jun
87
Good
Tue
17 Jun
27
Excellent
Air quality in the last 12 months (Xi'an)
|
2025/05
|
27
|
29
|
25
|
29
|
36
|
31
|
44
|
45
|
42
|
34
|
44
|
46
|
40
|
39
|
35
|
29
|
24
|
32
|
28
|
33
|
45
|
49
|
41
|
41
|
34
|
37
|
44
|
42
|
42
|
47
|
52
|
|
2025/04
|
51
|
46
|
75
|
64
|
36
|
29
|
37
|
52
|
64
|
67
|
58
|
28
|
15
|
29
|
37
|
42
|
45
|
35
|
34
|
51
|
61
|
19
|
40
|
71
|
76
|
101
|
80
|
58
|
55
|
53
|
|
|
2025/03
|
81
|
34
|
39
|
33
|
54
|
57
|
47
|
56
|
74
|
57
|
47
|
89
|
37
|
45
|
60
|
67
|
83
|
65
|
66
|
74
|
68
|
167
|
155
|
88
|
115
|
78
|
46
|
41
|
36
|
49
|
62
|
|
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
|
|
|
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