Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
101
PM2.5
237
*
PM10
51
O3
0.6
CO
6
SO2
43
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
11 Feb
95
Good
Thu
12 Feb
112
Light
Fri
13 Feb
122
Light
Sat
14 Feb
122
Light
Sun
15 Feb
88
Good
Mon
16 Feb
113
Light
Tue
17 Feb
50
Excellent
Chang'an Air quality rank
Air quality in the last 12 months (Chang'an)
|
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
|
|
2025/06
|
51
|
46
|
49
|
48
|
42
|
43
|
34
|
36
|
42
|
51
|
52
|
46
|
49
|
47
|
72
|
57
|
59
|
55
|
39
|
42
|
37
|
31
|
34
|
39
|
32
|
38
|
40
|
35
|
36
|
21
|
|
|
2025/05
|
102
|
73
|
78
|
78
|
125
|
475
|
178
|
105
|
80
|
49
|
39
|
54
|
39
|
71
|
73
|
60
|
200
|
128
|
81
|
66
|
71
|
78
|
63
|
56
|
47
|
46
|
55
|
48
|
41
|
57
|
46
|
|
2025/04
|
87
|
99
|
99
|
124
|
110
|
97
|
75
|
91
|
117
|
117
|
132
|
328
|
136
|
89
|
67
|
119
|
138
|
123
|
105
|
72
|
72
|
163
|
103
|
70
|
94
|
72
|
49
|
51
|
56
|
125
|
|
|
2025/03
|
181
|
65
|
26
|
69
|
72
|
72
|
88
|
84
|
79
|
80
|
229
|
188
|
84
|
45
|
49
|
52
|
49
|
50
|
48
|
60
|
69
|
70
|
83
|
68
|
62
|
221
|
198
|
133
|
111
|
96
|
92
|
|
2025/02
|
222
|
151
|
36
|
48
|
50
|
51
|
102
|
48
|
63
|
93
|
124
|
85
|
74
|
87
|
67
|
84
|
103
|
111
|
127
|
124
|
143
|
167
|
81
|
80
|
81
|
83
|
101
|
105
|
|||
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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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