Air Quality
Excellent
No health implications.
4
PM2.5
30
PM10
56
O3
0.2
CO
5
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 Apr
63
Good
Sun
6 Apr
79
Good
Mon
7 Apr
66
Good
Tue
8 Apr
67
Good
Wed
9 Apr
65
Good
Thu
10 Apr
72
Good
Fri
11 Apr
27
Excellent
Air quality in the last 12 months (Yi County)
|
2025/02
|
96
|
90
|
14
|
27
|
23
|
67
|
17
|
22
|
49
|
77
|
120
|
50
|
71
|
80
|
77
|
29
|
33
|
50
|
42
|
38
|
41
|
37
|
22
|
57
|
60
|
62
|
113
|
169
|
|||
|
2025/01
|
59
|
53
|
50
|
75
|
61
|
20
|
24
|
16
|
24
|
46
|
62
|
53
|
70
|
43
|
33
|
57
|
84
|
101
|
74
|
91
|
64
|
63
|
83
|
109
|
131
|
114
|
14
|
51
|
225
|
76
|
81
|
|
2024/12
|
71
|
27
|
62
|
87
|
39
|
36
|
13
|
43
|
60
|
61
|
59
|
91
|
46
|
29
|
45
|
56
|
39
|
40
|
55
|
57
|
22
|
48
|
59
|
83
|
100
|
44
|
36
|
44
|
74
|
72
|
64
|
|
2024/11
|
86
|
75
|
56
|
26
|
52
|
66
|
113
|
160
|
201
|
157
|
127
|
135
|
127
|
43
|
64
|
62
|
44
|
62
|
70
|
76
|
52
|
39
|
61
|
104
|
65
|
16
|
20
|
25
|
38
|
60
|
|
|
2024/10
|
16
|
24
|
40
|
62
|
90
|
122
|
57
|
63
|
108
|
30
|
66
|
98
|
128
|
95
|
68
|
52
|
64
|
50
|
18
|
32
|
57
|
45
|
48
|
63
|
133
|
199
|
77
|
61
|
99
|
113
|
161
|
|
2024/09
|
40
|
17
|
35
|
56
|
26
|
29
|
29
|
42
|
59
|
31
|
26
|
27
|
38
|
33
|
40
|
54
|
43
|
54
|
50
|
30
|
12
|
18
|
43
|
60
|
59
|
54
|
62
|
63
|
85
|
13
|
|
|
2024/08
|
31
|
51
|
29
|
23
|
21
|
38
|
38
|
37
|
36
|
44
|
18
|
14
|
18
|
31
|
47
|
41
|
36
|
24
|
26
|
21
|
20
|
34
|
35
|
36
|
32
|
11
|
17
|
25
|
39
|
56
|
58
|
|
2024/07
|
25
|
38
|
50
|
63
|
72
|
35
|
50
|
36
|
62
|
70
|
73
|
59
|
44
|
72
|
63
|
45
|
35
|
37
|
53
|
38
|
52
|
42
|
57
|
49
|
17
|
28
|
39
|
38
|
37
|
20
|
28
|
|
2024/06
|
51
|
58
|
52
|
68
|
64
|
66
|
56
|
61
|
52
|
52
|
57
|
70
|
78
|
50
|
48
|
67
|
66
|
65
|
62
|
70
|
51
|
93
|
102
|
38
|
43
|
69
|
62
|
62
|
68
|
39
|
|
|
2024/05
|
54
|
67
|
65
|
73
|
64
|
61
|
67
|
73
|
78
|
95
|
124
|
49
|
71
|
90
|
43
|
68
|
79
|
86
|
69
|
42
|
57
|
80
|
83
|
42
|
23
|
36
|
42
|
68
|
77
|
63
|
31
|
|
2024/04
|
89
|
86
|
79
|
67
|
81
|
103
|
80
|
94
|
48
|
66
|
103
|
89
|
75
|
61
|
123
|
81
|
92
|
104
|
86
|
59
|
82
|
94
|
54
|
62
|
92
|
98
|
97
|
36
|
25
|
34
|
|
|
2024/03
|
44
|
89
|
80
|
64
|
80
|
87
|
73
|
39
|
78
|
116
|
97
|
74
|
77
|
84
|
112
|
107
|
53
|
131
|
72
|
71
|
92
|
85
|
88
|
90
|
64
|
93
|
161
|
302
|
122
|
73
|
89
|
|
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