Air Quality
Excellent
No health implications.
24
PM2.5
46
PM10
46
O3
0.7
CO
11
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Nov
135
Light
Wed
11 Nov
132
Light
Thu
12 Nov
61
Good
Fri
13 Nov
80
Good
Sat
14 Nov
52
Good
Sun
15 Nov
62
Good
Mon
16 Nov
30
Excellent
Air quality in the last 12 months (Yi'an)
|
2026/09
|
14
|
17
|
36
|
37
|
29
|
24
|
20
|
19
|
20
|
22
|
26
|
23
|
17
|
18
|
22
|
22
|
39
|
50
|
33
|
17
|
19
|
24
|
17
|
25
|
26
|
22
|
26
|
24
|
24
|
21
|
|
|
2026/08
|
19
|
20
|
24
|
21
|
26
|
24
|
25
|
21
|
24
|
28
|
30
|
24
|
17
|
19
|
21
|
23
|
22
|
20
|
22
|
29
|
25
|
19
|
21
|
21
|
20
|
18
|
18
|
21
|
20
|
15
|
15
|
|
2026/07
|
39
|
33
|
28
|
28
|
30
|
27
|
24
|
17
|
18
|
30
|
36
|
22
|
21
|
22
|
21
|
19
|
22
|
24
|
27
|
34
|
28
|
31
|
36
|
30
|
23
|
24
|
23
|
30
|
17
|
19
|
24
|
|
2026/06
|
28
|
22
|
25
|
22
|
15
|
17
|
20
|
17
|
20
|
24
|
29
|
27
|
23
|
22
|
20
|
29
|
32
|
31
|
37
|
37
|
28
|
27
|
31
|
35
|
32
|
29
|
31
|
26
|
34
|
43
|
|
|
2026/05
|
28
|
27
|
28
|
31
|
48
|
26
|
31
|
32
|
33
|
56
|
49
|
57
|
47
|
69
|
28
|
24
|
21
|
25
|
34
|
35
|
40
|
39
|
33
|
41
|
28
|
25
|
24
|
24
|
23
|
26
|
51
|
|
2026/04
|
46
|
74
|
57
|
52
|
57
|
37
|
24
|
48
|
27
|
30
|
26
|
31
|
26
|
38
|
61
|
46
|
52
|
27
|
27
|
44
|
24
|
24
|
25
|
30
|
27
|
24
|
24
|
28
|
32
|
67
|
|
|
2026/03
|
32
|
31
|
53
|
46
|
31
|
31
|
35
|
53
|
43
|
37
|
30
|
39
|
73
|
32
|
32
|
27
|
97
|
46
|
42
|
56
|
127
|
73
|
75
|
139
|
128
|
56
|
45
|
64
|
126
|
35
|
76
|
|
2026/02
|
31
|
37
|
45
|
37
|
32
|
21
|
27
|
33
|
61
|
92
|
40
|
50
|
60
|
61
|
20
|
55
|
46
|
22
|
47
|
86
|
106
|
42
|
23
|
19
|
54
|
25
|
24
|
29
|
|||
|
2026/01
|
30
|
33
|
46
|
24
|
25
|
56
|
26
|
34
|
55
|
49
|
49
|
73
|
39
|
33
|
55
|
46
|
31
|
42
|
34
|
27
|
29
|
23
|
28
|
28
|
23
|
48
|
40
|
32
|
29
|
25
|
35
|
|
2025/12
|
23
|
25
|
31
|
33
|
48
|
52
|
72
|
35
|
33
|
24
|
23
|
29
|
48
|
55
|
47
|
27
|
45
|
88
|
79
|
37
|
34
|
55
|
60
|
41
|
29
|
29
|
50
|
65
|
26
|
28
|
30
|
|
2025/11
|
115
|
27
|
74
|
56
|
117
|
64
|
19
|
104
|
46
|
18
|
27
|
51
|
32
|
28
|
71
|
40
|
22
|
36
|
79
|
40
|
46
|
105
|
99
|
33
|
36
|
98
|
43
|
55
|
65
|
29
|
|
|
2025/10
|
33
|
34
|
54
|
25
|
21
|
23
|
37
|
22
|
35
|
35
|
47
|
19
|
29
|
25
|
30
|
35
|
45
|
19
|
19
|
19
|
28
|
26
|
32
|
39
|
62
|
34
|
27
|
33
|
127
|
56
|
56
|
|
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