Air Quality
Excellent
No health implications.
1
PM2.5
18
PM10
52
O3
0.2
CO
4
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Jun
54
Good
Sun
8 Jun
50
Excellent
Mon
9 Jun
53
Good
Tue
10 Jun
53
Good
Wed
11 Jun
59
Good
Thu
12 Jun
57
Good
Fri
13 Jun
22
Excellent
Air quality in the last 12 months (Yi'an)
|
2025/04
|
53
|
48
|
44
|
79
|
56
|
45
|
58
|
41
|
56
|
116
|
74
|
42
|
22
|
21
|
16
|
23
|
45
|
30
|
18
|
55
|
76
|
17
|
29
|
17
|
12
|
21
|
56
|
40
|
72
|
31
|
|
|
2025/03
|
21
|
30
|
39
|
53
|
72
|
60
|
45
|
36
|
77
|
103
|
48
|
46
|
18
|
17
|
18
|
24
|
20
|
19
|
46
|
31
|
16
|
19
|
69
|
35
|
20
|
33
|
15
|
17
|
12
|
18
|
33
|
|
2025/02
|
64
|
131
|
82
|
26
|
45
|
52
|
21
|
17
|
25
|
39
|
72
|
64
|
44
|
28
|
32
|
31
|
23
|
21
|
25
|
28
|
31
|
33
|
30
|
33
|
38
|
22
|
46
|
30
|
|||
|
2025/01
|
115
|
76
|
62
|
129
|
105
|
64
|
51
|
34
|
35
|
55
|
87
|
168
|
190
|
132
|
36
|
38
|
76
|
142
|
171
|
130
|
99
|
67
|
165
|
231
|
230
|
165
|
40
|
44
|
48
|
31
|
41
|
|
2024/12
|
45
|
19
|
23
|
20
|
28
|
19
|
27
|
33
|
100
|
77
|
25
|
43
|
68
|
43
|
31
|
26
|
34
|
38
|
54
|
93
|
44
|
29
|
34
|
42
|
46
|
28
|
31
|
36
|
53
|
91
|
105
|
|
2024/11
|
51
|
60
|
49
|
28
|
40
|
66
|
132
|
138
|
204
|
116
|
217
|
72
|
156
|
267
|
171
|
56
|
20
|
26
|
56
|
106
|
78
|
26
|
53
|
131
|
159
|
68
|
23
|
41
|
24
|
31
|
|
|
2024/10
|
19
|
19
|
22
|
31
|
36
|
32
|
60
|
44
|
43
|
28
|
22
|
20
|
41
|
48
|
13
|
21
|
31
|
29
|
17
|
35
|
37
|
43
|
38
|
58
|
49
|
83
|
55
|
43
|
66
|
69
|
75
|
|
2024/09
|
13
|
17
|
18
|
25
|
13
|
16
|
19
|
18
|
33
|
21
|
14
|
24
|
13
|
18
|
21
|
21
|
19
|
19
|
15
|
19
|
21
|
20
|
24
|
27
|
21
|
26
|
28
|
22
|
37
|
18
|
|
|
2024/08
|
21
|
20
|
19
|
21
|
21
|
23
|
25
|
17
|
29
|
29
|
16
|
14
|
18
|
20
|
23
|
27
|
30
|
27
|
20
|
22
|
21
|
21
|
25
|
23
|
25
|
15
|
16
|
19
|
22
|
14
|
14
|
|
2024/07
|
41
|
45
|
54
|
49
|
51
|
54
|
74
|
85
|
67
|
81
|
89
|
74
|
89
|
71
|
55
|
45
|
21
|
29
|
26
|
28
|
17
|
19
|
21
|
17
|
23
|
19
|
13
|
19
|
18
|
20
|
24
|
|
2024/06
|
25
|
29
|
30
|
18
|
31
|
39
|
27
|
16
|
16
|
21
|
23
|
21
|
26
|
20
|
16
|
22
|
16
|
18
|
31
|
23
|
15
|
18
|
17
|
22
|
30
|
34
|
36
|
46
|
35
|
44
|
|
|
2024/05
|
44
|
38
|
47
|
64
|
45
|
36
|
33
|
58
|
24
|
27
|
20
|
38
|
28
|
17
|
16
|
22
|
39
|
22
|
26
|
26
|
38
|
35
|
16
|
22
|
27
|
24
|
27
|
31
|
20
|
17
|
24
|
|
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