Air Quality
Excellent
No health implications.
35
PM2.5
44
PM10
97
O3
0.5
CO
13
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Apr
89
Good
Sat
5 Apr
50
Excellent
Sun
6 Apr
94
Good
Mon
7 Apr
90
Good
Tue
8 Apr
62
Good
Wed
9 Apr
17
Excellent
Thu
10 Apr
47
Excellent
Air quality in the last 12 months (Yi County)
|
2025/02
|
78
|
77
|
36
|
28
|
37
|
63
|
61
|
41
|
45
|
83
|
100
|
47
|
80
|
84
|
121
|
44
|
26
|
28
|
37
|
40
|
35
|
36
|
38
|
72
|
71
|
73
|
133
|
208
|
|||
|
2025/01
|
45
|
35
|
58
|
88
|
81
|
57
|
36
|
36
|
32
|
50
|
75
|
87
|
94
|
44
|
39
|
64
|
92
|
124
|
59
|
79
|
55
|
65
|
115
|
126
|
99
|
99
|
56
|
45
|
157
|
47
|
75
|
|
2024/12
|
70
|
28
|
50
|
45
|
51
|
30
|
38
|
50
|
95
|
55
|
47
|
73
|
54
|
47
|
34
|
59
|
32
|
47
|
64
|
57
|
34
|
56
|
50
|
74
|
87
|
36
|
30
|
44
|
82
|
77
|
53
|
|
2024/11
|
73
|
52
|
62
|
27
|
42
|
48
|
91
|
117
|
72
|
52
|
50
|
57
|
60
|
42
|
58
|
28
|
25
|
26
|
71
|
82
|
57
|
41
|
73
|
146
|
65
|
22
|
35
|
49
|
63
|
70
|
|
|
2024/10
|
23
|
24
|
31
|
47
|
64
|
33
|
33
|
36
|
54
|
29
|
43
|
44
|
60
|
44
|
24
|
42
|
57
|
42
|
31
|
38
|
40
|
28
|
32
|
46
|
89
|
55
|
30
|
64
|
82
|
32
|
76
|
|
2024/09
|
19
|
20
|
27
|
29
|
15
|
26
|
26
|
31
|
37
|
22
|
35
|
31
|
35
|
13
|
27
|
37
|
25
|
28
|
43
|
9
|
14
|
21
|
31
|
48
|
38
|
35
|
40
|
50
|
38
|
14
|
|
|
2024/08
|
31
|
19
|
45
|
21
|
21
|
26
|
35
|
47
|
44
|
27
|
49
|
24
|
15
|
21
|
24
|
31
|
40
|
41
|
27
|
19
|
15
|
20
|
24
|
40
|
25
|
27
|
22
|
24
|
37
|
42
|
23
|
|
2024/07
|
52
|
56
|
27
|
42
|
65
|
45
|
24
|
54
|
56
|
50
|
63
|
77
|
52
|
48
|
42
|
21
|
25
|
39
|
49
|
38
|
43
|
29
|
37
|
29
|
21
|
10
|
16
|
18
|
36
|
37
|
31
|
|
2024/06
|
24
|
38
|
37
|
43
|
42
|
45
|
40
|
37
|
42
|
50
|
57
|
53
|
31
|
26
|
16
|
30
|
56
|
58
|
44
|
26
|
25
|
64
|
77
|
15
|
22
|
40
|
58
|
39
|
27
|
27
|
|
|
2024/05
|
45
|
46
|
59
|
50
|
46
|
60
|
55
|
66
|
73
|
74
|
77
|
36
|
55
|
57
|
35
|
49
|
59
|
57
|
30
|
22
|
52
|
56
|
29
|
24
|
50
|
45
|
19
|
35
|
52
|
42
|
16
|
|
2024/04
|
58
|
77
|
38
|
46
|
78
|
81
|
74
|
63
|
72
|
80
|
101
|
93
|
51
|
37
|
168
|
53
|
62
|
54
|
41
|
82
|
86
|
48
|
33
|
30
|
52
|
60
|
34
|
15
|
37
|
37
|
|
|
2024/03
|
29
|
50
|
45
|
75
|
53
|
45
|
58
|
43
|
72
|
121
|
89
|
49
|
72
|
116
|
93
|
203
|
72
|
54
|
27
|
27
|
68
|
52
|
71
|
23
|
25
|
63
|
94
|
224
|
79
|
65
|
68
|
|
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