Air Quality
Heavy
Healthy people will commonly show symptoms. People with respiratory or heart diseases will be significantly affected and will experience reduced endurance in activities.
201
*
PM2.5
258
PM10
28
O3
1.6
CO
13
SO2
61
NO2
Healthy people will commonly show symptoms. People with respiratory or heart diseases will be significantly affected and will experience reduced endurance in activities.
Advise
Children, seniors and individuals with heart or lung diseases should stay indoors and avoid outdoor activities. General population should reduce outdoor activities.
Air Quality
Today
23 Jan
201
Heavy
Fri
24 Jan
144
Light
Sat
25 Jan
94
Good
Sun
26 Jan
57
Good
Mon
27 Jan
67
Good
Tue
28 Jan
108
Light
Wed
29 Jan
65
Good
Chang'an Air quality rank
Air quality in the last 12 months (Chang'an)
|
2024/12
|
68
|
95
|
92
|
74
|
68
|
64
|
71
|
58
|
77
|
107
|
133
|
136
|
49
|
62
|
57
|
83
|
109
|
85
|
116
|
160
|
72
|
67
|
87
|
94
|
95
|
95
|
87
|
66
|
91
|
64
|
85
|
|
2024/11
|
80
|
60
|
63
|
53
|
78
|
114
|
138
|
154
|
129
|
110
|
149
|
163
|
134
|
66
|
64
|
53
|
16
|
27
|
61
|
49
|
54
|
89
|
144
|
141
|
36
|
52
|
77
|
74
|
54
|
49
|
|
|
2024/10
|
46
|
48
|
51
|
55
|
92
|
92
|
65
|
130
|
89
|
60
|
92
|
110
|
80
|
58
|
69
|
45
|
84
|
59
|
42
|
36
|
35
|
29
|
47
|
71
|
106
|
65
|
39
|
51
|
92
|
107
|
77
|
|
2024/09
|
59
|
60
|
45
|
50
|
35
|
52
|
32
|
31
|
51
|
47
|
58
|
45
|
45
|
36
|
51
|
52
|
55
|
55
|
47
|
35
|
28
|
56
|
69
|
95
|
82
|
111
|
82
|
62
|
31
|
33
|
|
|
2024/08
|
47
|
54
|
41
|
44
|
44
|
36
|
42
|
41
|
57
|
111
|
60
|
49
|
49
|
57
|
43
|
32
|
36
|
34
|
43
|
47
|
39
|
57
|
66
|
63
|
46
|
39
|
30
|
48
|
51
|
39
|
45
|
|
2024/07
|
21
|
32
|
35
|
41
|
30
|
35
|
38
|
12
|
33
|
41
|
39
|
42
|
44
|
35
|
48
|
46
|
14
|
31
|
28
|
33
|
35
|
37
|
54
|
73
|
83
|
65
|
57
|
52
|
41
|
22
|
33
|
|
2024/06
|
74
|
48
|
61
|
29
|
29
|
50
|
43
|
37
|
35
|
43
|
39
|
49
|
53
|
41
|
61
|
36
|
39
|
30
|
35
|
34
|
21
|
39
|
40
|
55
|
72
|
57
|
41
|
46
|
52
|
60
|
|
|
2024/05
|
38
|
56
|
36
|
35
|
34
|
53
|
61
|
66
|
42
|
46
|
80
|
58
|
72
|
68
|
77
|
66
|
61
|
65
|
48
|
42
|
53
|
54
|
46
|
46
|
45
|
29
|
59
|
58
|
30
|
52
|
71
|
|
2024/04
|
93
|
86
|
71
|
85
|
81
|
85
|
81
|
75
|
61
|
49
|
51
|
63
|
55
|
40
|
74
|
89
|
72
|
72
|
245
|
156
|
116
|
84
|
298
|
155
|
87
|
62
|
72
|
64
|
45
|
23
|
|
|
2024/03
|
60
|
52
|
82
|
122
|
118
|
79
|
98
|
80
|
97
|
95
|
62
|
72
|
68
|
85
|
59
|
324
|
178
|
77
|
130
|
110
|
104
|
117
|
107
|
44
|
35
|
75
|
112
|
76
|
56
|
79
|
92
|
|
2024/02
|
191
|
90
|
118
|
121
|
112
|
115
|
113
|
150
|
120
|
257
|
104
|
120
|
115
|
98
|
53
|
74
|
104
|
343
|
487
|
100
|
54
|
92
|
81
|
102
|
116
|
135
|
116
|
170
|
111
|
||
|
2024/01
|
119
|
105
|
74
|
82
|
100
|
79
|
86
|
130
|
105
|
92
|
106
|
168
|
233
|
137
|
119
|
101
|
97
|
136
|
112
|
107
|
58
|
23
|
41
|
51
|
59
|
83
|
86
|
105
|
148
|
186
|
238
|
|
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