Air Quality
Excellent
No health implications.
13
PM2.5
19
PM10
52
O3
0.5
CO
6
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Jul
53
Good
Sun
27 Jul
55
Good
Mon
28 Jul
52
Good
Tue
29 Jul
55
Good
Wed
30 Jul
55
Good
Thu
31 Jul
61
Good
Fri
1 Aug
33
Excellent
Air quality in the last 12 months (Xi'an)
|
2025/06
|
41
|
34
|
35
|
26
|
29
|
25
|
26
|
27
|
30
|
26
|
22
|
22
|
29
|
34
|
28
|
24
|
24
|
34
|
23
|
27
|
20
|
22
|
24
|
31
|
34
|
28
|
36
|
36
|
24
|
24
|
|
|
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
|
|
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