Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
47
PM2.5
107
*
PM10
102
O3
0.5
CO
7
SO2
20
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
18 Jun
149
Light
Thu
19 Jun
74
Good
Fri
20 Jun
82
Good
Sat
21 Jun
118
Light
Sun
22 Jun
141
Light
Mon
23 Jun
164
Moderate
Tue
24 Jun
26
Excellent
Air quality in the last 12 months (Xian County)
|
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
|
|
2024/06
|
42
|
68
|
54
|
60
|
66
|
73
|
69
|
75
|
69
|
83
|
86
|
77
|
92
|
49
|
56
|
46
|
49
|
57
|
56
|
61
|
66
|
75
|
110
|
65
|
55
|
78
|
53
|
67
|
65
|
48
|
|
|
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