Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
28
PM2.5
70
*
PM10
44
O3
1.2
CO
10
SO2
31
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
14 Jul
67
Good
Tue
15 Jul
84
Good
Wed
16 Jul
85
Good
Thu
17 Jul
71
Good
Fri
18 Jul
57
Good
Sat
19 Jul
52
Good
Sun
20 Jul
46
Excellent
Yi'an Air quality rank
Air quality in the last 12 months (Yi'an)
|
2025/06
|
15
|
18
|
45
|
50
|
52
|
41
|
28
|
18
|
46
|
37
|
36
|
36
|
49
|
28
|
19
|
40
|
43
|
21
|
14
|
20
|
17
|
20
|
28
|
45
|
43
|
38
|
25
|
14
|
24
|
21
|
|
|
2025/05
|
53
|
53
|
55
|
45
|
49
|
156
|
121
|
52
|
31
|
37
|
44
|
44
|
47
|
56
|
60
|
40
|
44
|
89
|
59
|
35
|
28
|
36
|
42
|
74
|
62
|
60
|
65
|
60
|
45
|
40
|
32
|
|
2025/04
|
45
|
62
|
56
|
65
|
76
|
61
|
60
|
66
|
65
|
63
|
62
|
184
|
109
|
88
|
48
|
49
|
64
|
67
|
82
|
70
|
60
|
59
|
67
|
71
|
60
|
48
|
42
|
68
|
73
|
55
|
|
|
2025/03
|
41
|
35
|
21
|
45
|
59
|
59
|
58
|
61
|
77
|
68
|
52
|
74
|
50
|
43
|
33
|
49
|
32
|
50
|
43
|
47
|
46
|
51
|
61
|
60
|
60
|
64
|
82
|
69
|
78
|
75
|
47
|
|
2025/02
|
47
|
59
|
96
|
83
|
51
|
49
|
71
|
32
|
37
|
45
|
64
|
91
|
64
|
78
|
95
|
81
|
72
|
45
|
56
|
54
|
32
|
52
|
73
|
75
|
74
|
96
|
70
|
49
|
|||
|
2025/01
|
106
|
113
|
153
|
107
|
107
|
77
|
50
|
61
|
48
|
41
|
61
|
71
|
69
|
88
|
58
|
47
|
65
|
74
|
75
|
117
|
124
|
136
|
159
|
62
|
41
|
54
|
44
|
65
|
127
|
76
|
88
|
|
2024/12
|
60
|
65
|
107
|
69
|
64
|
80
|
110
|
56
|
59
|
66
|
67
|
75
|
79
|
65
|
61
|
61
|
77
|
87
|
43
|
62
|
99
|
58
|
66
|
78
|
105
|
126
|
73
|
93
|
64
|
87
|
85
|
|
2024/11
|
34
|
60
|
49
|
62
|
51
|
51
|
45
|
47
|
56
|
50
|
58
|
59
|
52
|
71
|
87
|
96
|
34
|
33
|
40
|
49
|
49
|
62
|
54
|
53
|
45
|
48
|
63
|
58
|
48
|
58
|
|
|
2024/10
|
32
|
37
|
35
|
40
|
38
|
29
|
16
|
47
|
45
|
56
|
64
|
70
|
68
|
55
|
54
|
48
|
34
|
41
|
30
|
40
|
52
|
41
|
58
|
55
|
53
|
30
|
22
|
69
|
64
|
51
|
43
|
|
2024/09
|
47
|
50
|
44
|
48
|
45
|
37
|
50
|
53
|
36
|
41
|
23
|
19
|
33
|
52
|
42
|
37
|
31
|
37
|
34
|
27
|
32
|
33
|
36
|
42
|
51
|
72
|
36
|
44
|
46
|
47
|
|
|
2024/08
|
22
|
24
|
31
|
33
|
33
|
35
|
30
|
35
|
42
|
41
|
44
|
41
|
34
|
23
|
34
|
42
|
46
|
45
|
44
|
23
|
38
|
35
|
39
|
48
|
49
|
53
|
33
|
19
|
37
|
40
|
44
|
|
2024/07
|
17
|
19
|
24
|
22
|
23
|
24
|
23
|
24
|
30
|
29
|
39
|
37
|
19
|
13
|
33
|
42
|
30
|
24
|
24
|
23
|
28
|
30
|
41
|
42
|
31
|
29
|
19
|
15
|
24
|
28
|
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