Air Quality
Excellent
No health implications.
2
PM2.5
14
PM10
18
O3
0.4
CO
3
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
36
Excellent
Sat
23 May
41
Excellent
Sun
24 May
35
Excellent
Mon
25 May
36
Excellent
Tue
26 May
37
Excellent
Wed
27 May
36
Excellent
Thu
28 May
26
Excellent
Air quality in the last 12 months (Yi County)
|
2026/04
|
30
|
41
|
22
|
41
|
65
|
52
|
54
|
34
|
28
|
25
|
31
|
19
|
24
|
17
|
24
|
35
|
31
|
42
|
43
|
49
|
28
|
13
|
15
|
20
|
22
|
32
|
48
|
32
|
26
|
25
|
|
|
2026/03
|
15
|
13
|
30
|
59
|
50
|
49
|
56
|
52
|
50
|
47
|
46
|
39
|
49
|
46
|
74
|
69
|
29
|
17
|
22
|
34
|
33
|
25
|
30
|
26
|
29
|
36
|
29
|
28
|
46
|
31
|
25
|
|
2026/02
|
20
|
36
|
44
|
48
|
46
|
30
|
22
|
46
|
32
|
29
|
46
|
56
|
52
|
42
|
35
|
20
|
54
|
42
|
43
|
34
|
35
|
65
|
82
|
31
|
13
|
12
|
12
|
16
|
|||
|
2026/01
|
25
|
38
|
48
|
48
|
64
|
61
|
48
|
42
|
46
|
53
|
56
|
49
|
58
|
41
|
53
|
60
|
104
|
95
|
41
|
21
|
51
|
54
|
51
|
41
|
60
|
59
|
24
|
50
|
53
|
28
|
14
|
|
2025/12
|
59
|
79
|
68
|
58
|
57
|
57
|
54
|
74
|
69
|
67
|
69
|
72
|
34
|
42
|
41
|
40
|
71
|
97
|
72
|
102
|
44
|
39
|
45
|
20
|
63
|
56
|
44
|
39
|
43
|
66
|
58
|
|
2025/11
|
35
|
41
|
53
|
47
|
28
|
20
|
19
|
17
|
14
|
39
|
38
|
27
|
37
|
40
|
50
|
59
|
42
|
31
|
36
|
38
|
42
|
47
|
47
|
57
|
83
|
62
|
97
|
83
|
57
|
49
|
|
|
2025/10
|
27
|
33
|
33
|
33
|
36
|
33
|
41
|
47
|
39
|
33
|
41
|
47
|
39
|
30
|
33
|
26
|
29
|
15
|
12
|
18
|
19
|
27
|
28
|
30
|
37
|
46
|
34
|
46
|
48
|
32
|
23
|
|
2025/09
|
17
|
21
|
25
|
28
|
31
|
24
|
27
|
30
|
15
|
17
|
19
|
21
|
21
|
21
|
24
|
30
|
30
|
26
|
25
|
18
|
18
|
23
|
28
|
16
|
18
|
24
|
32
|
36
|
39
|
34
|
|
|
2025/08
|
23
|
27
|
26
|
25
|
21
|
14
|
16
|
20
|
23
|
32
|
32
|
23
|
19
|
17
|
16
|
18
|
21
|
25
|
24
|
21
|
19
|
17
|
21
|
27
|
28
|
17
|
23
|
21
|
25
|
28
|
21
|
|
2025/07
|
18
|
20
|
22
|
25
|
28
|
26
|
21
|
16
|
14
|
21
|
20
|
15
|
15
|
24
|
24
|
25
|
26
|
27
|
18
|
9
|
10
|
8
|
11
|
14
|
19
|
17
|
14
|
17
|
15
|
16
|
12
|
|
2025/06
|
9
|
11
|
17
|
26
|
29
|
28
|
27
|
14
|
13
|
17
|
12
|
17
|
21
|
13
|
11
|
26
|
31
|
15
|
14
|
16
|
13
|
8
|
11
|
18
|
21
|
20
|
19
|
14
|
16
|
20
|
|
|
2025/05
|
42
|
46
|
50
|
51
|
22
|
84
|
116
|
39
|
15
|
35
|
33
|
37
|
35
|
40
|
50
|
26
|
20
|
57
|
30
|
19
|
15
|
22
|
16
|
59
|
52
|
48
|
47
|
41
|
20
|
24
|
28
|
|
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