Air Quality
Excellent
No health implications.
16
PM2.5
21
PM10
18
O3
0.6
CO
4
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Aug
48
Excellent
Thu
21 Aug
44
Excellent
Fri
22 Aug
41
Excellent
Sat
23 Aug
41
Excellent
Sun
24 Aug
48
Excellent
Mon
25 Aug
26
Excellent
Tue
26 Aug
46
Excellent
Air quality in the last 12 months (Yi County)
|
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
|
|
2025/04
|
28
|
41
|
60
|
52
|
58
|
52
|
50
|
51
|
56
|
51
|
44
|
133
|
108
|
99
|
44
|
40
|
54
|
56
|
56
|
58
|
37
|
21
|
40
|
33
|
34
|
38
|
21
|
37
|
50
|
46
|
|
|
2025/03
|
36
|
38
|
14
|
22
|
35
|
51
|
49
|
48
|
62
|
52
|
45
|
36
|
21
|
30
|
13
|
46
|
30
|
38
|
39
|
36
|
41
|
45
|
53
|
55
|
54
|
61
|
50
|
60
|
44
|
60
|
38
|
|
2025/02
|
24
|
21
|
66
|
46
|
39
|
45
|
70
|
38
|
32
|
38
|
54
|
72
|
95
|
84
|
59
|
46
|
54
|
34
|
34
|
22
|
17
|
21
|
45
|
66
|
59
|
44
|
38
|
32
|
|||
|
2025/01
|
74
|
65
|
90
|
74
|
74
|
59
|
62
|
52
|
53
|
34
|
41
|
62
|
58
|
57
|
78
|
40
|
45
|
45
|
50
|
62
|
61
|
62
|
85
|
77
|
42
|
29
|
42
|
67
|
143
|
70
|
45
|
|
2024/12
|
43
|
48
|
70
|
71
|
36
|
41
|
69
|
65
|
47
|
47
|
23
|
59
|
73
|
69
|
52
|
42
|
49
|
65
|
47
|
45
|
66
|
67
|
62
|
68
|
77
|
88
|
96
|
81
|
52
|
62
|
73
|
|
2024/11
|
13
|
29
|
29
|
40
|
54
|
36
|
33
|
34
|
34
|
33
|
28
|
31
|
35
|
33
|
22
|
24
|
16
|
23
|
32
|
33
|
32
|
36
|
53
|
41
|
26
|
32
|
35
|
44
|
37
|
42
|
|
|
2024/10
|
24
|
33
|
27
|
30
|
32
|
18
|
9
|
24
|
34
|
41
|
50
|
53
|
51
|
47
|
26
|
15
|
18
|
29
|
16
|
26
|
29
|
27
|
38
|
35
|
36
|
26
|
11
|
34
|
41
|
31
|
24
|
|
2024/09
|
35
|
40
|
44
|
42
|
36
|
31
|
39
|
44
|
37
|
34
|
20
|
20
|
28
|
31
|
31
|
24
|
21
|
21
|
31
|
20
|
16
|
30
|
26
|
27
|
34
|
44
|
26
|
25
|
33
|
33
|
|
|
2024/08
|
17
|
20
|
24
|
28
|
30
|
29
|
31
|
30
|
37
|
38
|
36
|
34
|
24
|
17
|
25
|
35
|
39
|
43
|
26
|
24
|
21
|
29
|
32
|
35
|
38
|
45
|
40
|
20
|
28
|
32
|
30
|
|
2024/07
|
12
|
16
|
17
|
20
|
18
|
19
|
21
|
23
|
26
|
28
|
27
|
29
|
26
|
22
|
34
|
29
|
22
|
19
|
20
|
22
|
24
|
29
|
33
|
30
|
22
|
17
|
13
|
12
|
17
|
23
|
24
|
|
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