Air Quality
Excellent
No health implications.
8
PM2.5
11
PM10
67
O3
0.7
CO
7
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Jun
60
Good
Tue
11 Jun
69
Good
Wed
12 Jun
86
Good
Thu
13 Jun
99
Good
Fri
14 Jun
94
Good
Sat
15 Jun
86
Good
Sun
16 Jun
83
Good
Air quality in the last 12 months (Xian'an)
|
2024/04
|
22
|
14
|
47
|
67
|
55
|
50
|
50
|
54
|
28
|
31
|
43
|
32
|
21
|
28
|
30
|
48
|
45
|
27
|
17
|
41
|
46
|
41
|
39
|
88
|
79
|
63
|
36
|
25
|
33
|
23
|
|
|
2024/03
|
43
|
37
|
28
|
22
|
66
|
61
|
47
|
63
|
63
|
60
|
61
|
56
|
52
|
38
|
54
|
69
|
61
|
50
|
57
|
86
|
56
|
50
|
30
|
40
|
22
|
28
|
36
|
43
|
34
|
34
|
31
|
|
2024/02
|
34
|
21
|
27
|
68
|
81
|
66
|
79
|
86
|
82
|
105
|
83
|
48
|
40
|
34
|
59
|
26
|
24
|
40
|
76
|
15
|
25
|
44
|
56
|
51
|
58
|
82
|
71
|
71
|
66
|
||
|
2024/01
|
82
|
88
|
55
|
44
|
52
|
68
|
100
|
116
|
98
|
93
|
69
|
56
|
51
|
109
|
157
|
60
|
41
|
20
|
19
|
50
|
57
|
47
|
29
|
36
|
51
|
57
|
64
|
60
|
60
|
82
|
64
|
|
2023/12
|
37
|
37
|
52
|
59
|
46
|
59
|
52
|
40
|
32
|
52
|
17
|
36
|
40
|
32
|
30
|
38
|
37
|
36
|
43
|
39
|
76
|
45
|
43
|
56
|
54
|
52
|
84
|
164
|
203
|
145
|
86
|
|
2023/11
|
48
|
42
|
56
|
88
|
47
|
27
|
29
|
27
|
21
|
39
|
35
|
24
|
51
|
39
|
47
|
95
|
100
|
60
|
48
|
46
|
38
|
43
|
68
|
57
|
55
|
53
|
51
|
55
|
68
|
57
|
|
|
2023/10
|
28
|
43
|
21
|
22
|
39
|
41
|
27
|
30
|
31
|
37
|
47
|
56
|
63
|
54
|
52
|
45
|
43
|
46
|
62
|
30
|
38
|
39
|
41
|
50
|
78
|
91
|
87
|
110
|
104
|
92
|
64
|
|
2023/09
|
46
|
44
|
39
|
32
|
41
|
35
|
36
|
39
|
39
|
39
|
38
|
35
|
27
|
22
|
24
|
30
|
28
|
31
|
26
|
22
|
18
|
24
|
22
|
26
|
41
|
49
|
47
|
42
|
56
|
26
|
|
|
2023/08
|
23
|
26
|
29
|
35
|
35
|
32
|
31
|
29
|
33
|
40
|
40
|
41
|
36
|
31
|
41
|
45
|
48
|
49
|
52
|
42
|
34
|
35
|
34
|
49
|
52
|
41
|
25
|
25
|
40
|
41
|
41
|
|
2023/07
|
21
|
23
|
25
|
26
|
27
|
22
|
23
|
20
|
21
|
24
|
24
|
26
|
26
|
23
|
38
|
52
|
43
|
28
|
20
|
18
|
22
|
17
|
18
|
24
|
28
|
26
|
27
|
21
|
16
|
20
|
21
|
|
2023/06
|
41
|
60
|
53
|
63
|
30
|
32
|
35
|
45
|
48
|
47
|
51
|
49
|
39
|
48
|
43
|
39
|
26
|
23
|
19
|
24
|
32
|
37
|
28
|
27
|
28
|
32
|
21
|
23
|
25
|
21
|
|
|
2023/05
|
58
|
59
|
46
|
40
|
34
|
26
|
45
|
46
|
46
|
41
|
47
|
48
|
47
|
45
|
46
|
42
|
24
|
35
|
52
|
52
|
37
|
45
|
54
|
37
|
36
|
40
|
31
|
26
|
51
|
44
|
26
|
|
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