Air Quality
Excellent
No health implications.
13
PM2.5
19
PM10
53
O3
0.5
CO
6
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Aug
71
Good
Fri
22 Aug
73
Good
Sat
23 Aug
65
Good
Sun
24 Aug
52
Good
Mon
25 Aug
75
Good
Tue
26 Aug
74
Good
Wed
27 Aug
16
Excellent
Air quality in the last 12 months (Yi County)
|
2025/06
|
74
|
51
|
22
|
34
|
55
|
52
|
46
|
54
|
62
|
39
|
65
|
84
|
72
|
38
|
20
|
24
|
59
|
74
|
38
|
42
|
36
|
40
|
58
|
52
|
63
|
65
|
58
|
58
|
45
|
52
|
|
|
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
|
|
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