Air Quality
Excellent
No health implications.
12
PM2.5
23
PM10
79
O3
0.3
CO
4
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 Aug
68
Good
Sun
10 Aug
78
Good
Mon
11 Aug
89
Good
Tue
12 Aug
93
Good
Wed
13 Aug
97
Good
Thu
14 Aug
15
Excellent
Fri
15 Aug
33
Excellent
Air quality in the last 12 months (Xian County)
|
2025/06
|
82
|
79
|
40
|
37
|
62
|
79
|
75
|
63
|
75
|
43
|
72
|
84
|
76
|
53
|
36
|
31
|
51
|
66
|
46
|
42
|
48
|
47
|
59
|
53
|
66
|
60
|
58
|
56
|
48
|
34
|
|
|
2025/05
|
54
|
69
|
42
|
52
|
69
|
45
|
75
|
75
|
43
|
36
|
55
|
65
|
69
|
58
|
39
|
84
|
107
|
69
|
97
|
92
|
75
|
73
|
71
|
55
|
53
|
67
|
63
|
66
|
68
|
64
|
64
|
|
2025/04
|
71
|
35
|
61
|
92
|
44
|
79
|
95
|
77
|
60
|
75
|
136
|
175
|
55
|
53
|
57
|
91
|
103
|
59
|
43
|
69
|
71
|
66
|
79
|
55
|
69
|
88
|
77
|
62
|
68
|
83
|
|
|
2025/03
|
196
|
85
|
56
|
45
|
73
|
55
|
96
|
114
|
108
|
109
|
128
|
142
|
131
|
77
|
51
|
36
|
55
|
35
|
54
|
55
|
55
|
69
|
119
|
121
|
70
|
93
|
99
|
56
|
36
|
63
|
76
|
|
2025/02
|
70
|
97
|
37
|
27
|
40
|
94
|
35
|
28
|
58
|
100
|
127
|
96
|
80
|
90
|
101
|
53
|
41
|
57
|
71
|
71
|
64
|
55
|
40
|
65
|
81
|
87
|
138
|
183
|
|||
|
2025/01
|
120
|
46
|
62
|
131
|
133
|
37
|
50
|
47
|
38
|
58
|
80
|
72
|
84
|
92
|
44
|
65
|
78
|
128
|
111
|
87
|
125
|
54
|
68
|
86
|
102
|
105
|
29
|
73
|
270
|
76
|
68
|
|
2024/12
|
103
|
43
|
59
|
89
|
79
|
67
|
37
|
54
|
100
|
104
|
63
|
78
|
74
|
58
|
57
|
73
|
59
|
35
|
59
|
83
|
39
|
53
|
75
|
107
|
149
|
51
|
59
|
58
|
84
|
110
|
85
|
|
2024/11
|
76
|
78
|
111
|
43
|
50
|
66
|
88
|
82
|
76
|
117
|
139
|
156
|
145
|
47
|
68
|
79
|
57
|
51
|
66
|
77
|
71
|
55
|
60
|
89
|
59
|
34
|
38
|
45
|
52
|
73
|
|
|
2024/10
|
27
|
27
|
43
|
65
|
74
|
100
|
63
|
69
|
117
|
78
|
78
|
110
|
143
|
175
|
126
|
60
|
104
|
43
|
29
|
37
|
62
|
64
|
70
|
120
|
123
|
161
|
119
|
60
|
117
|
206
|
192
|
|
2024/09
|
46
|
31
|
35
|
55
|
37
|
34
|
44
|
54
|
65
|
27
|
33
|
37
|
48
|
47
|
45
|
44
|
63
|
50
|
49
|
36
|
19
|
21
|
37
|
59
|
74
|
78
|
57
|
66
|
71
|
19
|
|
|
2024/08
|
37
|
43
|
36
|
28
|
24
|
40
|
46
|
49
|
46
|
73
|
29
|
25
|
26
|
36
|
44
|
41
|
43
|
27
|
17
|
29
|
31
|
46
|
53
|
37
|
47
|
20
|
23
|
39
|
43
|
57
|
57
|
|
2024/07
|
50
|
55
|
48
|
62
|
45
|
30
|
54
|
46
|
62
|
57
|
64
|
66
|
75
|
88
|
60
|
54
|
47
|
47
|
41
|
24
|
39
|
35
|
34
|
47
|
16
|
24
|
32
|
23
|
22
|
17
|
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