Air Quality
Excellent
No health implications.
6
PM2.5
10
PM10
21
O3
0.5
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jun
37
Excellent
Mon
16 Jun
55
Good
Tue
17 Jun
67
Good
Wed
18 Jun
59
Good
Thu
19 Jun
47
Excellent
Fri
20 Jun
21
Excellent
Sat
21 Jun
43
Excellent
Air quality in the last 12 months (Yi County)
|
2025/05
|
42
|
46
|
50
|
51
|
22
|
84
|
116
|
39
|
15
|
35
|
33
|
37
|
35
|
40
|
50
|
26
|
20
|
57
|
30
|
19
|
15
|
22
|
16
|
59
|
52
|
48
|
47
|
41
|
20
|
24
|
28
|
|
2025/04
|
28
|
41
|
60
|
52
|
58
|
52
|
50
|
51
|
56
|
51
|
44
|
133
|
108
|
99
|
44
|
40
|
54
|
56
|
56
|
58
|
37
|
21
|
40
|
33
|
34
|
38
|
21
|
37
|
50
|
46
|
|
|
2025/03
|
36
|
38
|
14
|
22
|
35
|
51
|
49
|
48
|
62
|
52
|
45
|
36
|
21
|
30
|
13
|
46
|
30
|
38
|
39
|
36
|
41
|
45
|
53
|
55
|
54
|
61
|
50
|
60
|
44
|
60
|
38
|
|
2025/02
|
24
|
21
|
66
|
46
|
39
|
45
|
70
|
38
|
32
|
38
|
54
|
72
|
95
|
84
|
59
|
46
|
54
|
34
|
34
|
22
|
17
|
21
|
45
|
66
|
59
|
44
|
38
|
32
|
|||
|
2025/01
|
74
|
65
|
90
|
74
|
74
|
59
|
62
|
52
|
53
|
34
|
41
|
62
|
58
|
57
|
78
|
40
|
45
|
45
|
50
|
62
|
61
|
62
|
85
|
77
|
42
|
29
|
42
|
67
|
143
|
70
|
45
|
|
2024/12
|
43
|
48
|
70
|
71
|
36
|
41
|
69
|
65
|
47
|
47
|
23
|
59
|
73
|
69
|
52
|
42
|
49
|
65
|
47
|
45
|
66
|
67
|
62
|
68
|
77
|
88
|
96
|
81
|
52
|
62
|
73
|
|
2024/11
|
13
|
29
|
29
|
40
|
54
|
36
|
33
|
34
|
34
|
33
|
28
|
31
|
35
|
33
|
22
|
24
|
16
|
23
|
32
|
33
|
32
|
36
|
53
|
41
|
26
|
32
|
35
|
44
|
37
|
42
|
|
|
2024/10
|
24
|
33
|
27
|
30
|
32
|
18
|
9
|
24
|
34
|
41
|
50
|
53
|
51
|
47
|
26
|
15
|
18
|
29
|
16
|
26
|
29
|
27
|
38
|
35
|
36
|
26
|
11
|
34
|
41
|
31
|
24
|
|
2024/09
|
35
|
40
|
44
|
42
|
36
|
31
|
39
|
44
|
37
|
34
|
20
|
20
|
28
|
31
|
31
|
24
|
21
|
21
|
31
|
20
|
16
|
30
|
26
|
27
|
34
|
44
|
26
|
25
|
33
|
33
|
|
|
2024/08
|
17
|
20
|
24
|
28
|
30
|
29
|
31
|
30
|
37
|
38
|
36
|
34
|
24
|
17
|
25
|
35
|
39
|
43
|
26
|
24
|
21
|
29
|
32
|
35
|
38
|
45
|
40
|
20
|
28
|
32
|
30
|
|
2024/07
|
12
|
16
|
17
|
20
|
18
|
19
|
21
|
23
|
26
|
28
|
27
|
29
|
26
|
22
|
34
|
29
|
22
|
19
|
20
|
22
|
24
|
29
|
33
|
30
|
22
|
17
|
13
|
12
|
17
|
23
|
24
|
|
2024/06
|
14
|
24
|
25
|
32
|
27
|
21
|
20
|
26
|
28
|
19
|
19
|
23
|
26
|
32
|
34
|
44
|
28
|
20
|
12
|
14
|
20
|
28
|
18
|
16
|
16
|
12
|
9
|
11
|
19
|
19
|
|
|
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