Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
41
PM2.5
81
*
PM10
48
O3
0.5
CO
6
SO2
57
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
8 May
104
Lightly
Thu
9 May
117
Lightly
Fri
10 May
124
Lightly
Sat
11 May
95
Good
Sun
12 May
89
Good
Mon
13 May
81
Good
Air quality in the last 12 months (Chang'an)
|
2024/02
|
63
|
62
|
90
|
109
|
111
|
160
|
139
|
153
|
207
|
269
|
122
|
92
|
112
|
166
|
60
|
71
|
94
|
114
|
68
|
39
|
40
|
30
|
47
|
57
|
85
|
107
|
86
|
130
|
81
|
||
|
2024/01
|
118
|
191
|
90
|
126
|
106
|
51
|
54
|
95
|
98
|
93
|
148
|
189
|
208
|
97
|
52
|
81
|
121
|
130
|
66
|
58
|
46
|
26
|
33
|
47
|
57
|
51
|
70
|
68
|
106
|
145
|
189
|
|
2023/12
|
47
|
54
|
74
|
108
|
149
|
204
|
115
|
122
|
93
|
47
|
43
|
74
|
98
|
61
|
44
|
24
|
42
|
122
|
114
|
61
|
32
|
58
|
65
|
58
|
106
|
122
|
57
|
105
|
194
|
210
|
55
|
|
2023/11
|
238
|
263
|
75
|
79
|
48
|
44
|
58
|
87
|
55
|
28
|
47
|
54
|
67
|
77
|
108
|
52
|
38
|
70
|
75
|
100
|
151
|
114
|
50
|
33
|
45
|
82
|
86
|
39
|
38
|
38
|
|
|
2023/10
|
41
|
51
|
63
|
69
|
40
|
43
|
56
|
53
|
38
|
50
|
61
|
92
|
129
|
98
|
62
|
61
|
87
|
67
|
39
|
36
|
47
|
61
|
82
|
102
|
63
|
61
|
71
|
99
|
185
|
225
|
225
|
|
2023/09
|
63
|
79
|
63
|
91
|
79
|
86
|
73
|
82
|
51
|
42
|
71
|
40
|
45
|
53
|
71
|
80
|
77
|
73
|
37
|
33
|
42
|
54
|
45
|
39
|
56
|
82
|
101
|
83
|
81
|
38
|
|
|
2023/08
|
32
|
51
|
54
|
49
|
34
|
37
|
42
|
53
|
60
|
66
|
71
|
44
|
57
|
52
|
59
|
76
|
63
|
63
|
77
|
66
|
57
|
49
|
41
|
37
|
52
|
29
|
26
|
31
|
43
|
55
|
70
|
|
2023/07
|
78
|
86
|
73
|
63
|
68
|
82
|
71
|
45
|
57
|
79
|
58
|
33
|
38
|
57
|
35
|
40
|
69
|
74
|
83
|
49
|
32
|
41
|
69
|
65
|
61
|
62
|
63
|
44
|
38
|
17
|
22
|
|
2023/06
|
56
|
46
|
65
|
63
|
70
|
54
|
56
|
44
|
47
|
38
|
78
|
64
|
62
|
74
|
90
|
83
|
88
|
69
|
29
|
42
|
43
|
72
|
81
|
60
|
84
|
60
|
66
|
44
|
56
|
70
|
|
|
2023/05
|
81
|
76
|
88
|
63
|
35
|
39
|
44
|
62
|
54
|
66
|
70
|
73
|
62
|
73
|
94
|
79
|
77
|
60
|
88
|
122
|
68
|
53
|
57
|
69
|
64
|
79
|
59
|
45
|
62
|
57
|
57
|
|
2023/04
|
88
|
81
|
94
|
49
|
40
|
53
|
55
|
54
|
97
|
119
|
494
|
433
|
326
|
331
|
218
|
73
|
93
|
101
|
97
|
117
|
42
|
33
|
51
|
43
|
55
|
63
|
82
|
77
|
76
|
65
|
|
|
2023/03
|
83
|
81
|
75
|
72
|
192
|
189
|
133
|
121
|
99
|
100
|
234
|
100
|
90
|
95
|
96
|
99
|
71
|
69
|
108
|
104
|
104
|
366
|
236
|
141
|
96
|
97
|
101
|
114
|
110
|
99
|
88
|
|
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