Air Quality
Excellent
No health implications.
13
PM2.5
33
PM10
58
O3
0.7
CO
4
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Aug
81
Good
Sat
8 Aug
61
Good
Sun
9 Aug
54
Good
Mon
10 Aug
42
Excellent
Tue
11 Aug
45
Excellent
Wed
12 Aug
44
Excellent
Thu
13 Aug
47
Excellent
Air quality in the last 12 months (Xian'an)
|
2026/06
|
50
|
49
|
34
|
39
|
58
|
50
|
50
|
33
|
35
|
39
|
47
|
32
|
23
|
27
|
43
|
39
|
37
|
34
|
18
|
21
|
18
|
20
|
21
|
20
|
23
|
37
|
44
|
41
|
37
|
21
|
|
|
2026/05
|
31
|
26
|
37
|
34
|
34
|
35
|
44
|
46
|
37
|
36
|
40
|
47
|
30
|
26
|
33
|
24
|
23
|
22
|
17
|
30
|
36
|
23
|
21
|
27
|
28
|
21
|
27
|
35
|
52
|
48
|
50
|
|
2026/04
|
40
|
35
|
43
|
48
|
66
|
63
|
76
|
49
|
34
|
42
|
48
|
45
|
46
|
36
|
34
|
47
|
42
|
49
|
50
|
53
|
27
|
21
|
36
|
36
|
34
|
43
|
54
|
33
|
28
|
32
|
|
|
2026/03
|
26
|
35
|
54
|
67
|
75
|
64
|
69
|
70
|
79
|
62
|
47
|
56
|
53
|
50
|
104
|
20
|
18
|
29
|
44
|
61
|
42
|
53
|
59
|
71
|
59
|
56
|
62
|
53
|
54
|
36
|
33
|
|
2026/02
|
49
|
57
|
70
|
64
|
86
|
84
|
50
|
60
|
51
|
60
|
76
|
78
|
82
|
63
|
71
|
42
|
82
|
75
|
97
|
68
|
46
|
64
|
89
|
42
|
31
|
27
|
41
|
35
|
|||
|
2026/01
|
32
|
51
|
58
|
59
|
89
|
63
|
50
|
61
|
67
|
64
|
73
|
68
|
67
|
55
|
90
|
88
|
164
|
175
|
28
|
51
|
64
|
76
|
60
|
68
|
74
|
126
|
103
|
57
|
66
|
28
|
44
|
|
2025/12
|
72
|
100
|
65
|
72
|
95
|
70
|
89
|
120
|
101
|
103
|
121
|
105
|
39
|
47
|
51
|
56
|
138
|
137
|
76
|
142
|
73
|
46
|
53
|
88
|
73
|
62
|
73
|
68
|
66
|
108
|
99
|
|
2025/11
|
47
|
51
|
64
|
60
|
49
|
46
|
38
|
25
|
46
|
55
|
73
|
56
|
53
|
50
|
50
|
50
|
51
|
32
|
31
|
39
|
47
|
54
|
65
|
54
|
84
|
55
|
92
|
70
|
58
|
52
|
|
|
2025/10
|
34
|
36
|
31
|
41
|
53
|
37
|
42
|
43
|
41
|
48
|
62
|
70
|
43
|
49
|
53
|
29
|
40
|
12
|
12
|
25
|
21
|
30
|
40
|
42
|
57
|
62
|
62
|
54
|
62
|
72
|
48
|
|
2025/09
|
15
|
19
|
22
|
22
|
28
|
36
|
33
|
26
|
23
|
21
|
15
|
19
|
27
|
24
|
25
|
30
|
34
|
24
|
20
|
20
|
32
|
44
|
32
|
10
|
17
|
35
|
41
|
41
|
40
|
34
|
|
|
2025/08
|
32
|
35
|
39
|
34
|
28
|
21
|
13
|
12
|
20
|
29
|
14
|
16
|
26
|
21
|
11
|
16
|
18
|
25
|
20
|
15
|
14
|
15
|
14
|
17
|
15
|
20
|
20
|
17
|
26
|
32
|
16
|
|
2025/07
|
14
|
16
|
17
|
24
|
33
|
28
|
32
|
29
|
21
|
20
|
36
|
23
|
22
|
27
|
24
|
21
|
28
|
29
|
36
|
24
|
17
|
10
|
15
|
18
|
22
|
26
|
20
|
22
|
25
|
21
|
25
|
|
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