Air Quality
Excellent
No health implications.
12
PM2.5
21
PM10
63
O3
0.5
CO
5
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Apr
74
Good
Sun
5 Apr
99
Good
Mon
6 Apr
90
Good
Tue
7 Apr
72
Good
Wed
8 Apr
80
Good
Thu
9 Apr
19
Excellent
Fri
10 Apr
18
Excellent
Air quality in the last 12 months (Yi County)
|
2026/02
|
66
|
42
|
93
|
92
|
92
|
36
|
46
|
38
|
79
|
83
|
71
|
132
|
163
|
110
|
54
|
53
|
223
|
22
|
73
|
122
|
128
|
96
|
35
|
72
|
95
|
43
|
40
|
38
|
|||
|
2026/01
|
49
|
65
|
87
|
78
|
38
|
66
|
39
|
53
|
97
|
32
|
21
|
53
|
34
|
68
|
62
|
27
|
32
|
34
|
38
|
39
|
38
|
50
|
55
|
52
|
35
|
73
|
32
|
49
|
55
|
59
|
65
|
|
2025/12
|
41
|
26
|
40
|
48
|
55
|
88
|
63
|
37
|
70
|
88
|
29
|
55
|
91
|
93
|
119
|
63
|
77
|
111
|
108
|
28
|
32
|
55
|
56
|
47
|
30
|
40
|
85
|
123
|
40
|
38
|
37
|
|
2025/11
|
70
|
35
|
63
|
59
|
122
|
56
|
57
|
139
|
39
|
45
|
50
|
73
|
46
|
92
|
156
|
66
|
39
|
56
|
72
|
42
|
62
|
88
|
130
|
134
|
32
|
63
|
36
|
74
|
69
|
35
|
|
|
2025/10
|
71
|
62
|
45
|
44
|
33
|
27
|
45
|
24
|
29
|
36
|
45
|
34
|
56
|
87
|
55
|
31
|
37
|
23
|
26
|
25
|
36
|
43
|
46
|
61
|
85
|
38
|
44
|
61
|
120
|
49
|
59
|
|
2025/09
|
42
|
42
|
53
|
48
|
42
|
26
|
31
|
24
|
34
|
29
|
51
|
37
|
35
|
32
|
22
|
26
|
16
|
19
|
37
|
39
|
34
|
40
|
38
|
29
|
33
|
50
|
72
|
47
|
49
|
62
|
|
|
2025/08
|
33
|
32
|
28
|
16
|
20
|
14
|
19
|
22
|
22
|
22
|
34
|
34
|
21
|
29
|
34
|
28
|
19
|
34
|
46
|
27
|
36
|
19
|
35
|
16
|
19
|
20
|
29
|
11
|
28
|
38
|
35
|
|
2025/07
|
37
|
31
|
18
|
30
|
44
|
20
|
27
|
38
|
28
|
33
|
40
|
34
|
17
|
20
|
26
|
20
|
12
|
18
|
33
|
19
|
24
|
35
|
23
|
23
|
34
|
36
|
38
|
30
|
21
|
17
|
25
|
|
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
|
|
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