Air Quality
Excellent
No health implications.
7
PM2.5
22
PM10
33
O3
0.6
CO
5
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Jun
50
Excellent
Fri
27 Jun
44
Excellent
Sat
28 Jun
45
Excellent
Sun
29 Jun
59
Good
Mon
30 Jun
41
Excellent
Tue
1 Jul
24
Excellent
Wed
2 Jul
43
Excellent
Air quality in the last 12 months (Xian'an)
|
2025/05
|
41
|
54
|
55
|
52
|
36
|
108
|
126
|
38
|
37
|
44
|
36
|
33
|
33
|
49
|
51
|
17
|
30
|
68
|
49
|
23
|
19
|
20
|
38
|
55
|
41
|
41
|
49
|
27
|
21
|
21
|
15
|
|
2025/04
|
64
|
55
|
60
|
58
|
67
|
67
|
63
|
60
|
51
|
40
|
39
|
232
|
122
|
127
|
54
|
58
|
68
|
69
|
69
|
63
|
29
|
46
|
51
|
45
|
45
|
34
|
37
|
55
|
52
|
43
|
|
|
2025/03
|
46
|
36
|
14
|
33
|
49
|
46
|
50
|
61
|
49
|
42
|
35
|
58
|
44
|
45
|
29
|
49
|
30
|
40
|
44
|
40
|
40
|
47
|
54
|
51
|
51
|
58
|
79
|
61
|
62
|
69
|
72
|
|
2025/02
|
62
|
47
|
59
|
58
|
45
|
46
|
79
|
42
|
37
|
39
|
46
|
76
|
86
|
53
|
62
|
58
|
44
|
29
|
35
|
55
|
58
|
30
|
72
|
93
|
82
|
53
|
34
|
40
|
|||
|
2025/01
|
77
|
106
|
162
|
143
|
104
|
68
|
79
|
68
|
57
|
48
|
58
|
66
|
56
|
81
|
68
|
57
|
61
|
65
|
67
|
76
|
73
|
73
|
183
|
139
|
27
|
35
|
54
|
60
|
85
|
54
|
74
|
|
2024/12
|
43
|
51
|
95
|
92
|
48
|
49
|
52
|
98
|
60
|
61
|
74
|
82
|
79
|
56
|
53
|
46
|
53
|
76
|
58
|
72
|
86
|
59
|
68
|
71
|
80
|
118
|
138
|
54
|
44
|
70
|
97
|
|
2024/11
|
52
|
86
|
66
|
71
|
65
|
40
|
34
|
36
|
45
|
53
|
46
|
40
|
50
|
60
|
73
|
75
|
17
|
19
|
33
|
33
|
36
|
38
|
61
|
51
|
33
|
32
|
45
|
55
|
48
|
39
|
|
|
2024/10
|
19
|
47
|
45
|
34
|
41
|
71
|
27
|
31
|
42
|
59
|
61
|
55
|
86
|
58
|
54
|
33
|
19
|
23
|
19
|
26
|
45
|
26
|
31
|
36
|
49
|
48
|
37
|
60
|
55
|
45
|
44
|
|
2024/09
|
38
|
45
|
43
|
38
|
44
|
55
|
44
|
40
|
43
|
37
|
40
|
38
|
30
|
39
|
39
|
29
|
47
|
41
|
35
|
41
|
33
|
30
|
36
|
42
|
45
|
53
|
51
|
29
|
33
|
45
|
|
|
2024/08
|
13
|
16
|
23
|
22
|
26
|
23
|
24
|
23
|
22
|
24
|
76
|
81
|
45
|
24
|
24
|
30
|
43
|
40
|
28
|
34
|
34
|
32
|
24
|
22
|
23
|
33
|
27
|
21
|
40
|
36
|
37
|
|
2024/07
|
11
|
21
|
19
|
14
|
16
|
16
|
17
|
18
|
22
|
31
|
32
|
24
|
23
|
33
|
26
|
23
|
15
|
15
|
12
|
16
|
18
|
18
|
24
|
30
|
38
|
27
|
18
|
11
|
11
|
17
|
17
|
|
2024/06
|
22
|
40
|
30
|
20
|
21
|
24
|
29
|
29
|
19
|
14
|
17
|
29
|
27
|
22
|
22
|
28
|
33
|
17
|
12
|
16
|
19
|
9
|
9
|
13
|
17
|
20
|
11
|
10
|
9
|
13
|
|
|
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