Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
15
PM2.5
62
*
PM10
17
O3
0.2
CO
5
SO2
28
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
17 Jun
125
Light
Wed
18 Jun
100
Good
Thu
19 Jun
84
Good
Fri
20 Jun
83
Good
Sat
21 Jun
130
Light
Sun
22 Jun
33
Excellent
Mon
23 Jun
50
Excellent
Yi County Air quality rank
Air quality in the last 12 months (Yi County)
|
2025/05
|
44
|
62
|
31
|
53
|
56
|
45
|
70
|
93
|
30
|
40
|
55
|
68
|
82
|
39
|
50
|
67
|
75
|
58
|
68
|
91
|
75
|
64
|
58
|
41
|
53
|
60
|
67
|
67
|
70
|
70
|
65
|
|
2025/04
|
52
|
26
|
65
|
81
|
36
|
80
|
84
|
53
|
60
|
71
|
150
|
106
|
53
|
35
|
58
|
87
|
94
|
49
|
48
|
73
|
78
|
49
|
63
|
51
|
64
|
92
|
76
|
58
|
70
|
58
|
|
|
2025/03
|
219
|
84
|
42
|
53
|
68
|
40
|
76
|
118
|
123
|
149
|
182
|
115
|
122
|
72
|
46
|
23
|
34
|
41
|
42
|
34
|
30
|
53
|
135
|
90
|
64
|
78
|
73
|
31
|
25
|
47
|
63
|
|
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
|
|
|
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