Air Quality
Excellent
No health implications.
4
PM2.5
21
PM10
85
O3
0.2
CO
6
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Feb
57
Good
Mon
24 Feb
70
Good
Tue
25 Feb
71
Good
Wed
26 Feb
80
Good
Thu
27 Feb
118
Light
Fri
28 Feb
118
Light
Sat
1 Mar
22
Excellent
Air quality in the last 12 months (Yi County)
|
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
|
|
2024/02
|
65
|
84
|
115
|
137
|
123
|
129
|
90
|
118
|
140
|
107
|
96
|
122
|
155
|
108
|
58
|
73
|
102
|
104
|
61
|
25
|
30
|
34
|
37
|
71
|
96
|
91
|
91
|
92
|
55
|
||
|
1
|
2
|
3
|
4
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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