Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
109
*
PM2.5
127
PM10
118
O3
0.7
CO
7
SO2
18
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
17 Mar
122
Light
Wed
18 Mar
87
Good
Thu
19 Mar
98
Good
Fri
20 Mar
112
Light
Sat
21 Mar
108
Light
Sun
22 Mar
103
Light
Mon
23 Mar
21
Excellent
Air quality in the last 12 months (Xian County)
|
2026/02
|
219
|
115
|
136
|
171
|
136
|
54
|
60
|
66
|
98
|
130
|
112
|
117
|
145
|
149
|
42
|
68
|
157
|
70
|
80
|
73
|
228
|
91
|
57
|
84
|
66
|
76
|
61
|
65
|
|||
|
2026/01
|
54
|
68
|
138
|
206
|
174
|
148
|
49
|
66
|
130
|
56
|
41
|
78
|
68
|
87
|
142
|
86
|
49
|
46
|
39
|
41
|
59
|
113
|
132
|
204
|
118
|
90
|
140
|
162
|
68
|
81
|
140
|
|
2025/12
|
68
|
34
|
47
|
59
|
76
|
130
|
101
|
39
|
106
|
152
|
92
|
30
|
62
|
70
|
111
|
133
|
110
|
152
|
250
|
99
|
49
|
66
|
81
|
72
|
32
|
56
|
102
|
167
|
133
|
81
|
32
|
|
2025/11
|
81
|
33
|
64
|
106
|
147
|
161
|
63
|
70
|
72
|
82
|
118
|
143
|
74
|
78
|
137
|
103
|
40
|
49
|
58
|
57
|
65
|
96
|
104
|
164
|
37
|
125
|
45
|
130
|
154
|
170
|
|
|
2025/10
|
85
|
37
|
45
|
49
|
30
|
26
|
45
|
34
|
10
|
18
|
20
|
40
|
35
|
48
|
88
|
71
|
40
|
24
|
35
|
36
|
50
|
61
|
68
|
80
|
101
|
70
|
72
|
152
|
128
|
155
|
103
|
|
2025/09
|
36
|
38
|
49
|
51
|
53
|
46
|
62
|
65
|
46
|
50
|
59
|
48
|
58
|
62
|
56
|
43
|
30
|
39
|
28
|
41
|
57
|
35
|
45
|
52
|
65
|
56
|
36
|
59
|
71
|
76
|
|
|
2025/08
|
39
|
35
|
46
|
29
|
45
|
35
|
41
|
36
|
26
|
36
|
40
|
39
|
33
|
51
|
40
|
12
|
24
|
24
|
36
|
21
|
30
|
23
|
33
|
14
|
31
|
39
|
42
|
19
|
36
|
26
|
27
|
|
2025/07
|
20
|
24
|
19
|
32
|
30
|
24
|
31
|
34
|
44
|
53
|
54
|
54
|
41
|
39
|
44
|
38
|
41
|
40
|
48
|
40
|
41
|
40
|
24
|
28
|
37
|
40
|
33
|
38
|
25
|
30
|
28
|
|
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
|
|
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