Air Quality
Excellent
No health implications.
7
PM2.5
28
PM10
67
O3
0.3
CO
7
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 Apr
63
Good
Fri
10 Apr
76
Good
Sat
11 Apr
59
Good
Sun
12 Apr
70
Good
Mon
13 Apr
59
Good
Tue
14 Apr
71
Good
Wed
15 Apr
28
Excellent
Air quality in the last 12 months (Yi'an)
|
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
|
|
2025/09
|
21
|
21
|
32
|
46
|
40
|
19
|
19
|
17
|
15
|
20
|
20
|
28
|
26
|
24
|
19
|
16
|
18
|
22
|
30
|
23
|
22
|
28
|
38
|
22
|
17
|
22
|
28
|
29
|
32
|
46
|
|
|
2025/08
|
22
|
25
|
17
|
20
|
23
|
17
|
18
|
22
|
16
|
14
|
15
|
20
|
22
|
19
|
23
|
15
|
19
|
22
|
24
|
19
|
24
|
16
|
24
|
19
|
24
|
20
|
23
|
25
|
26
|
20
|
31
|
|
2025/07
|
28
|
21
|
21
|
24
|
16
|
19
|
20
|
21
|
23
|
33
|
40
|
22
|
20
|
22
|
26
|
21
|
22
|
23
|
24
|
21
|
18
|
23
|
35
|
32
|
22
|
28
|
21
|
23
|
17
|
16
|
20
|
|
2025/06
|
20
|
24
|
19
|
19
|
21
|
14
|
17
|
22
|
15
|
18
|
18
|
31
|
31
|
20
|
25
|
23
|
20
|
25
|
20
|
17
|
14
|
20
|
32
|
37
|
39
|
34
|
43
|
33
|
29
|
37
|
|
|
2025/05
|
35
|
25
|
23
|
17
|
18
|
23
|
29
|
40
|
31
|
33
|
48
|
73
|
63
|
41
|
62
|
40
|
19
|
24
|
23
|
26
|
24
|
20
|
25
|
29
|
32
|
39
|
41
|
54
|
58
|
59
|
42
|
|
2025/04
|
53
|
48
|
44
|
79
|
56
|
45
|
58
|
41
|
56
|
116
|
74
|
42
|
22
|
21
|
16
|
23
|
45
|
30
|
18
|
55
|
76
|
17
|
29
|
17
|
12
|
21
|
56
|
40
|
72
|
31
|
|
|
2025/03
|
21
|
30
|
39
|
53
|
72
|
60
|
45
|
36
|
77
|
103
|
48
|
46
|
18
|
17
|
18
|
24
|
20
|
19
|
46
|
31
|
16
|
19
|
69
|
35
|
20
|
33
|
15
|
17
|
12
|
18
|
33
|
|
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