Air Quality
Excellent
No health implications.
29
PM2.5
42
PM10
41
O3
0.9
CO
15
SO2
26
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Nov
61
Good
Thu
14 Nov
49
Excellent
Fri
15 Nov
92
Good
Sat
16 Nov
62
Good
Sun
17 Nov
42
Excellent
Mon
18 Nov
50
Excellent
Tue
19 Nov
49
Excellent
Air quality in the last 12 months (Xi'an)
|
2024/10
|
18
|
28
|
28
|
33
|
41
|
44
|
32
|
40
|
45
|
27
|
32
|
40
|
56
|
44
|
20
|
38
|
64
|
43
|
28
|
45
|
17
|
35
|
37
|
52
|
70
|
83
|
35
|
46
|
66
|
74
|
78
|
|
2024/09
|
17
|
20
|
23
|
22
|
19
|
20
|
22
|
24
|
26
|
21
|
28
|
25
|
24
|
23
|
36
|
32
|
28
|
30
|
24
|
18
|
20
|
29
|
28
|
24
|
23
|
26
|
33
|
35
|
28
|
17
|
|
|
2024/08
|
15
|
20
|
16
|
23
|
13
|
15
|
27
|
33
|
25
|
26
|
22
|
26
|
20
|
22
|
28
|
29
|
33
|
32
|
21
|
26
|
12
|
16
|
21
|
27
|
17
|
21
|
20
|
21
|
24
|
30
|
22
|
|
2024/07
|
48
|
41
|
10
|
28
|
38
|
26
|
24
|
51
|
38
|
46
|
54
|
59
|
55
|
54
|
54
|
29
|
12
|
25
|
25
|
19
|
22
|
15
|
20
|
12
|
15
|
8
|
9
|
8
|
13
|
23
|
19
|
|
2024/06
|
27
|
16
|
24
|
24
|
32
|
20
|
23
|
17
|
20
|
25
|
27
|
31
|
28
|
13
|
14
|
16
|
24
|
28
|
38
|
27
|
31
|
41
|
34
|
8
|
12
|
24
|
35
|
30
|
17
|
23
|
|
|
2024/05
|
30
|
34
|
39
|
37
|
26
|
33
|
34
|
28
|
38
|
44
|
54
|
27
|
34
|
39
|
18
|
26
|
35
|
37
|
18
|
12
|
20
|
29
|
23
|
20
|
21
|
11
|
11
|
23
|
33
|
27
|
14
|
|
2024/04
|
57
|
80
|
61
|
83
|
110
|
61
|
104
|
84
|
87
|
155
|
45
|
48
|
37
|
31
|
102
|
110
|
52
|
44
|
56
|
171
|
97
|
44
|
41
|
32
|
42
|
47
|
44
|
20
|
29
|
38
|
|
|
2024/03
|
25
|
38
|
30
|
40
|
37
|
39
|
39
|
32
|
35
|
58
|
62
|
31
|
39
|
51
|
47
|
57
|
37
|
52
|
35
|
37
|
46
|
32
|
39
|
29
|
36
|
55
|
65
|
182
|
55
|
42
|
41
|
|
2024/02
|
91
|
104
|
120
|
107
|
97
|
112
|
107
|
90
|
158
|
297
|
90
|
55
|
72
|
40
|
39
|
36
|
33
|
31
|
29
|
31
|
30
|
44
|
48
|
116
|
112
|
64
|
43
|
72
|
57
|
||
|
2024/01
|
70
|
73
|
90
|
49
|
36
|
42
|
28
|
35
|
64
|
53
|
34
|
40
|
55
|
30
|
44
|
68
|
40
|
45
|
69
|
43
|
40
|
31
|
49
|
43
|
69
|
72
|
68
|
70
|
85
|
116
|
78
|
|
2023/12
|
39
|
29
|
31
|
53
|
71
|
49
|
31
|
58
|
25
|
25
|
27
|
44
|
49
|
31
|
41
|
27
|
34
|
70
|
75
|
53
|
55
|
59
|
79
|
78
|
60
|
46
|
72
|
92
|
82
|
75
|
72
|
|
2023/11
|
35
|
40
|
30
|
47
|
76
|
51
|
35
|
36
|
33
|
25
|
38
|
48
|
40
|
56
|
67
|
32
|
25
|
36
|
27
|
28
|
53
|
48
|
25
|
20
|
24
|
37
|
66
|
24
|
23
|
28
|
|
|
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