Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
66
PM2.5
217
*
PM10
118
O3
0.4
CO
2
SO2
8
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
18 Jul
94
Good
Sun
19 Jul
97
Good
Mon
20 Jul
104
Light
Tue
21 Jul
103
Light
Wed
22 Jul
100
Good
Thu
23 Jul
109
Light
Fri
24 Jul
45
Excellent
Air quality in the last 12 months (Chang'an)
|
2026/06
|
49
|
69
|
65
|
63
|
70
|
35
|
33
|
32
|
35
|
48
|
47
|
35
|
43
|
57
|
36
|
37
|
36
|
23
|
37
|
28
|
25
|
28
|
33
|
29
|
38
|
35
|
58
|
58
|
59
|
45
|
|
|
2026/05
|
48
|
53
|
43
|
33
|
42
|
41
|
45
|
41
|
35
|
51
|
63
|
69
|
31
|
36
|
63
|
49
|
26
|
26
|
37
|
30
|
43
|
77
|
56
|
56
|
51
|
55
|
47
|
55
|
45
|
41
|
41
|
|
2026/04
|
60
|
72
|
106
|
119
|
80
|
87
|
93
|
76
|
76
|
70
|
64
|
55
|
58
|
64
|
53
|
46
|
58
|
65
|
199
|
78
|
30
|
26
|
44
|
63
|
65
|
70
|
73
|
83
|
70
|
54
|
|
|
2026/03
|
19
|
36
|
56
|
124
|
100
|
69
|
53
|
55
|
52
|
96
|
96
|
107
|
138
|
67
|
40
|
63
|
50
|
85
|
109
|
93
|
92
|
103
|
104
|
67
|
74
|
79
|
63
|
54
|
62
|
36
|
45
|
|
2026/02
|
120
|
97
|
119
|
105
|
120
|
153
|
73
|
68
|
87
|
144
|
131
|
107
|
71
|
92
|
76
|
54
|
165
|
99
|
67
|
45
|
185
|
298
|
141
|
45
|
66
|
60
|
67
|
62
|
|||
|
2026/01
|
75
|
114
|
145
|
68
|
50
|
46
|
54
|
66
|
62
|
62
|
66
|
63
|
65
|
100
|
100
|
99
|
105
|
130
|
73
|
34
|
67
|
100
|
140
|
184
|
208
|
152
|
148
|
173
|
174
|
120
|
111
|
|
2025/12
|
86
|
91
|
86
|
95
|
117
|
128
|
70
|
83
|
117
|
129
|
129
|
108
|
78
|
77
|
99
|
102
|
121
|
177
|
128
|
59
|
68
|
114
|
103
|
95
|
76
|
85
|
107
|
139
|
158
|
197
|
123
|
|
2025/11
|
52
|
68
|
107
|
116
|
113
|
59
|
49
|
51
|
61
|
95
|
89
|
88
|
73
|
93
|
107
|
74
|
26
|
36
|
41
|
53
|
65
|
74
|
56
|
80
|
74
|
149
|
134
|
59
|
62
|
71
|
|
|
2025/10
|
15
|
24
|
43
|
26
|
16
|
14
|
14
|
39
|
17
|
14
|
9
|
11
|
23
|
52
|
29
|
47
|
9
|
27
|
37
|
28
|
46
|
56
|
66
|
74
|
53
|
32
|
61
|
68
|
80
|
71
|
58
|
|
2025/09
|
39
|
32
|
33
|
19
|
25
|
50
|
56
|
43
|
46
|
50
|
24
|
21
|
35
|
52
|
52
|
27
|
15
|
10
|
15
|
30
|
21
|
17
|
18
|
28
|
46
|
47
|
39
|
14
|
29
|
43
|
|
|
2025/08
|
37
|
43
|
38
|
35
|
22
|
29
|
42
|
32
|
17
|
18
|
24
|
37
|
46
|
45
|
28
|
24
|
22
|
20
|
21
|
27
|
57
|
40
|
22
|
23
|
41
|
33
|
30
|
16
|
12
|
21
|
26
|
|
2025/07
|
26
|
23
|
30
|
29
|
18
|
27
|
27
|
27
|
38
|
36
|
33
|
44
|
46
|
39
|
33
|
43
|
41
|
25
|
39
|
26
|
27
|
47
|
39
|
26
|
16
|
20
|
24
|
23
|
34
|
43
|
29
|
|
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