Air Quality
Excellent
No health implications.
22
PM2.5
37
PM10
105
O3
1.2
CO
12
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Aug
53
Good
Sun
24 Aug
54
Good
Mon
25 Aug
46
Excellent
Tue
26 Aug
54
Good
Wed
27 Aug
58
Good
Thu
28 Aug
59
Good
Fri
29 Aug
28
Excellent
Yi County Air quality rank
Air quality in the last 12 months (Yi County)
|
2025/06
|
27
|
56
|
36
|
18
|
43
|
29
|
17
|
42
|
31
|
20
|
36
|
46
|
31
|
34
|
28
|
20
|
23
|
41
|
34
|
23
|
22
|
29
|
46
|
43
|
43
|
46
|
43
|
26
|
42
|
32
|
|
|
2025/05
|
36
|
36
|
39
|
28
|
36
|
39
|
50
|
64
|
31
|
38
|
64
|
74
|
66
|
58
|
63
|
52
|
32
|
30
|
57
|
70
|
68
|
77
|
32
|
45
|
36
|
52
|
71
|
61
|
49
|
66
|
50
|
|
2025/04
|
86
|
31
|
60
|
56
|
42
|
53
|
82
|
37
|
36
|
60
|
63
|
46
|
20
|
19
|
45
|
63
|
69
|
20
|
27
|
51
|
36
|
23
|
50
|
54
|
37
|
59
|
31
|
40
|
65
|
50
|
|
|
2025/03
|
141
|
45
|
38
|
60
|
98
|
47
|
76
|
84
|
170
|
122
|
110
|
85
|
56
|
47
|
46
|
41
|
54
|
28
|
59
|
91
|
59
|
72
|
136
|
63
|
89
|
111
|
58
|
31
|
25
|
29
|
65
|
|
2025/02
|
78
|
77
|
36
|
28
|
37
|
63
|
61
|
41
|
45
|
83
|
100
|
47
|
80
|
84
|
121
|
44
|
26
|
28
|
37
|
40
|
35
|
36
|
38
|
72
|
71
|
73
|
133
|
208
|
|||
|
2025/01
|
45
|
35
|
58
|
88
|
81
|
57
|
36
|
36
|
32
|
50
|
75
|
87
|
94
|
44
|
39
|
64
|
92
|
124
|
59
|
79
|
55
|
65
|
115
|
126
|
99
|
99
|
56
|
45
|
157
|
47
|
75
|
|
2024/12
|
70
|
28
|
50
|
45
|
51
|
30
|
38
|
50
|
95
|
55
|
47
|
73
|
54
|
47
|
34
|
59
|
32
|
47
|
64
|
57
|
34
|
56
|
50
|
74
|
87
|
36
|
30
|
44
|
82
|
77
|
53
|
|
2024/11
|
73
|
52
|
62
|
27
|
42
|
48
|
91
|
117
|
72
|
52
|
50
|
57
|
60
|
42
|
58
|
28
|
25
|
26
|
71
|
82
|
57
|
41
|
73
|
146
|
65
|
22
|
35
|
49
|
63
|
70
|
|
|
2024/10
|
23
|
24
|
31
|
47
|
64
|
33
|
33
|
36
|
54
|
29
|
43
|
44
|
60
|
44
|
24
|
42
|
57
|
42
|
31
|
38
|
40
|
28
|
32
|
46
|
89
|
55
|
30
|
64
|
82
|
32
|
76
|
|
2024/09
|
19
|
20
|
27
|
29
|
15
|
26
|
26
|
31
|
37
|
22
|
35
|
31
|
35
|
13
|
27
|
37
|
25
|
28
|
43
|
9
|
14
|
21
|
31
|
48
|
38
|
35
|
40
|
50
|
38
|
14
|
|
|
2024/08
|
31
|
19
|
45
|
21
|
21
|
26
|
35
|
47
|
44
|
27
|
49
|
24
|
15
|
21
|
24
|
31
|
40
|
41
|
27
|
19
|
15
|
20
|
24
|
40
|
25
|
27
|
22
|
24
|
37
|
42
|
23
|
|
2024/07
|
52
|
56
|
27
|
42
|
65
|
45
|
24
|
54
|
56
|
50
|
63
|
77
|
52
|
48
|
42
|
21
|
25
|
39
|
49
|
38
|
43
|
29
|
37
|
29
|
21
|
10
|
16
|
18
|
36
|
37
|
31
|
|
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