Air Quality
Excellent
No health implications.
3
PM2.5
9
PM10
22
O3
0.6
CO
4
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Jul
46
Excellent
Sat
4 Jul
42
Excellent
Sun
5 Jul
39
Excellent
Mon
6 Jul
53
Good
Tue
7 Jul
44
Excellent
Wed
8 Jul
59
Good
Thu
9 Jul
43
Excellent
Air quality in the last 12 months (Xian'an)
|
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
|
|
2025/06
|
12
|
20
|
38
|
42
|
33
|
31
|
25
|
12
|
20
|
22
|
22
|
21
|
20
|
19
|
29
|
40
|
27
|
15
|
12
|
18
|
15
|
11
|
16
|
18
|
21
|
23
|
15
|
13
|
11
|
16
|
|
|
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