Air Quality
Excellent
No health implications.
4
PM2.5
7
PM10
35
O3
0.9
CO
6
SO2
26
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Sep
59
Good
Mon
28 Sep
60
Good
Tue
29 Sep
54
Good
Wed
30 Sep
55
Good
Thu
1 Oct
55
Good
Fri
2 Oct
68
Good
Sat
3 Oct
42
Excellent
Air quality in the last 12 months (Yi'an)
|
2026/08
|
28
|
31
|
39
|
53
|
38
|
44
|
31
|
31
|
25
|
21
|
19
|
22
|
37
|
20
|
36
|
42
|
45
|
45
|
36
|
29
|
26
|
26
|
27
|
22
|
24
|
40
|
43
|
30
|
29
|
30
|
40
|
|
2026/07
|
31
|
19
|
25
|
23
|
14
|
22
|
16
|
22
|
19
|
32
|
37
|
20
|
24
|
30
|
23
|
24
|
25
|
32
|
43
|
23
|
24
|
35
|
40
|
32
|
38
|
30
|
26
|
22
|
18
|
23
|
27
|
|
2026/06
|
83
|
81
|
47
|
59
|
61
|
43
|
65
|
41
|
33
|
44
|
66
|
50
|
29
|
40
|
43
|
35
|
43
|
47
|
16
|
28
|
31
|
20
|
26
|
25
|
41
|
71
|
77
|
86
|
68
|
28
|
|
|
2026/05
|
36
|
41
|
37
|
29
|
35
|
39
|
56
|
38
|
40
|
45
|
42
|
57
|
82
|
91
|
30
|
36
|
44
|
49
|
44
|
25
|
40
|
46
|
60
|
24
|
25
|
24
|
43
|
42
|
65
|
81
|
73
|
|
2026/04
|
71
|
60
|
42
|
69
|
72
|
69
|
57
|
39
|
37
|
53
|
62
|
38
|
48
|
42
|
47
|
60
|
71
|
65
|
60
|
57
|
41
|
16
|
20
|
40
|
46
|
46
|
56
|
37
|
30
|
40
|
|
|
2026/03
|
37
|
22
|
59
|
61
|
59
|
61
|
67
|
59
|
62
|
73
|
60
|
64
|
73
|
62
|
97
|
49
|
28
|
32
|
81
|
95
|
61
|
52
|
71
|
42
|
62
|
81
|
80
|
48
|
57
|
48
|
81
|
|
2026/02
|
47
|
64
|
79
|
75
|
84
|
59
|
46
|
54
|
48
|
67
|
89
|
78
|
68
|
62
|
69
|
38
|
107
|
87
|
77
|
53
|
43
|
98
|
125
|
27
|
44
|
26
|
35
|
37
|
|||
|
2026/01
|
31
|
63
|
79
|
87
|
83
|
78
|
59
|
57
|
57
|
90
|
78
|
57
|
69
|
65
|
79
|
92
|
151
|
117
|
35
|
46
|
58
|
53
|
68
|
80
|
134
|
56
|
50
|
93
|
72
|
25
|
32
|
|
2025/12
|
112
|
85
|
75
|
65
|
76
|
76
|
75
|
106
|
62
|
84
|
112
|
62
|
47
|
59
|
53
|
63
|
130
|
142
|
129
|
176
|
43
|
40
|
44
|
64
|
79
|
41
|
53
|
64
|
70
|
130
|
42
|
|
2025/11
|
73
|
66
|
53
|
59
|
65
|
47
|
21
|
31
|
43
|
67
|
40
|
39
|
51
|
78
|
90
|
112
|
50
|
34
|
39
|
48
|
71
|
87
|
93
|
81
|
91
|
67
|
139
|
90
|
72
|
67
|
|
|
2025/10
|
34
|
48
|
33
|
45
|
70
|
54
|
74
|
54
|
46
|
62
|
81
|
68
|
45
|
47
|
66
|
52
|
46
|
19
|
25
|
31
|
26
|
32
|
38
|
42
|
55
|
57
|
60
|
69
|
66
|
53
|
58
|
|
2025/09
|
26
|
27
|
32
|
43
|
45
|
42
|
57
|
50
|
31
|
30
|
27
|
24
|
27
|
37
|
28
|
34
|
32
|
36
|
38
|
29
|
36
|
35
|
52
|
19
|
32
|
61
|
53
|
54
|
50
|
43
|
|
|
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