Air Quality
Excellent
No health implications.
5
PM2.5
17
PM10
47
O3
0.3
CO
4
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 Nov
57
Good
Wed
6 Nov
67
Good
Thu
7 Nov
71
Good
Fri
8 Nov
91
Good
Sat
9 Nov
81
Good
Sun
10 Nov
67
Good
Mon
11 Nov
66
Good
Air quality in the last 12 months (Yi'an)
|
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
|
|
2024/04
|
25
|
62
|
44
|
26
|
50
|
36
|
34
|
31
|
51
|
94
|
104
|
90
|
67
|
84
|
92
|
38
|
38
|
37
|
21
|
86
|
186
|
130
|
23
|
32
|
32
|
15
|
19
|
16
|
30
|
35
|
|
|
2024/03
|
26
|
28
|
31
|
30
|
30
|
29
|
39
|
25
|
32
|
46
|
36
|
37
|
39
|
43
|
28
|
46
|
20
|
23
|
32
|
27
|
30
|
40
|
63
|
19
|
32
|
61
|
73
|
151
|
23
|
21
|
22
|
|
2024/02
|
28
|
44
|
43
|
43
|
65
|
63
|
74
|
48
|
142
|
156
|
91
|
66
|
58
|
32
|
29
|
50
|
83
|
48
|
30
|
28
|
28
|
29
|
31
|
98
|
81
|
30
|
46
|
39
|
37
|
||
|
2024/01
|
47
|
86
|
100
|
63
|
32
|
78
|
32
|
44
|
58
|
45
|
52
|
40
|
62
|
33
|
27
|
46
|
56
|
29
|
37
|
30
|
22
|
29
|
41
|
30
|
77
|
152
|
93
|
167
|
41
|
50
|
41
|
|
2023/12
|
38
|
54
|
47
|
38
|
54
|
26
|
31
|
37
|
25
|
27
|
30
|
50
|
68
|
55
|
27
|
22
|
28
|
39
|
60
|
33
|
39
|
48
|
56
|
61
|
70
|
61
|
63
|
97
|
76
|
45
|
28
|
|
2023/11
|
56
|
69
|
23
|
48
|
38
|
40
|
35
|
50
|
68
|
43
|
28
|
30
|
31
|
68
|
95
|
146
|
55
|
25
|
28
|
34
|
47
|
22
|
20
|
28
|
29
|
53
|
74
|
41
|
32
|
30
|
|
|
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