Air Quality
Excellent
No health implications.
3
PM2.5
13
PM10
11
O3
0.6
CO
3
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Jul
38
Excellent
Wed
22 Jul
38
Excellent
Thu
23 Jul
42
Excellent
Fri
24 Jul
44
Excellent
Sat
25 Jul
46
Excellent
Sun
26 Jul
21
Excellent
Mon
27 Jul
42
Excellent
Air quality in the last 12 months (Yi County)
|
2026/06
|
50
|
49
|
37
|
24
|
43
|
31
|
34
|
33
|
25
|
24
|
33
|
30
|
21
|
23
|
30
|
24
|
25
|
24
|
14
|
18
|
17
|
17
|
18
|
17
|
19
|
34
|
45
|
38
|
30
|
14
|
|
|
2026/05
|
28
|
30
|
25
|
26
|
31
|
37
|
40
|
29
|
26
|
25
|
26
|
39
|
49
|
30
|
22
|
26
|
31
|
31
|
28
|
11
|
24
|
21
|
15
|
16
|
18
|
18
|
23
|
32
|
44
|
57
|
49
|
|
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
|
|
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