Air Quality
Excellent
No health implications.
13
PM2.5
14
PM10
41
O3
0.4
CO
4
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 Apr
52
Good
Fri
10 Apr
74
Good
Sat
11 Apr
66
Good
Sun
12 Apr
69
Good
Mon
13 Apr
55
Good
Tue
14 Apr
67
Good
Wed
15 Apr
48
Excellent
Air quality in the last 12 months (Yu'an)
|
2026/02
|
40
|
57
|
77
|
64
|
80
|
78
|
48
|
56
|
47
|
65
|
82
|
67
|
68
|
68
|
89
|
42
|
87
|
62
|
65
|
52
|
36
|
122
|
131
|
22
|
40
|
30
|
45
|
34
|
|||
|
2026/01
|
27
|
53
|
57
|
76
|
62
|
60
|
40
|
56
|
48
|
87
|
72
|
61
|
62
|
66
|
66
|
86
|
200
|
111
|
23
|
46
|
61
|
39
|
60
|
81
|
143
|
93
|
76
|
70
|
87
|
24
|
39
|
|
2025/12
|
125
|
90
|
77
|
66
|
68
|
68
|
75
|
123
|
74
|
78
|
149
|
61
|
53
|
65
|
57
|
67
|
215
|
157
|
108
|
219
|
73
|
44
|
55
|
87
|
80
|
48
|
52
|
64
|
107
|
171
|
46
|
|
2025/11
|
60
|
62
|
63
|
70
|
86
|
59
|
11
|
50
|
95
|
77
|
46
|
41
|
64
|
90
|
102
|
85
|
43
|
33
|
32
|
37
|
54
|
59
|
65
|
92
|
89
|
61
|
227
|
90
|
64
|
71
|
|
|
2025/10
|
20
|
26
|
17
|
29
|
51
|
61
|
63
|
72
|
46
|
55
|
42
|
49
|
22
|
48
|
52
|
34
|
27
|
17
|
22
|
26
|
25
|
33
|
36
|
41
|
54
|
54
|
65
|
75
|
75
|
103
|
68
|
|
2025/09
|
22
|
21
|
25
|
32
|
25
|
40
|
44
|
44
|
33
|
35
|
25
|
17
|
19
|
20
|
16
|
25
|
22
|
21
|
22
|
16
|
42
|
43
|
59
|
15
|
21
|
29
|
30
|
31
|
37
|
18
|
|
|
2025/08
|
15
|
17
|
21
|
28
|
31
|
20
|
21
|
17
|
21
|
13
|
9
|
13
|
21
|
26
|
17
|
17
|
21
|
24
|
23
|
18
|
18
|
19
|
17
|
21
|
25
|
15
|
25
|
26
|
28
|
23
|
16
|
|
2025/07
|
15
|
15
|
19
|
21
|
28
|
31
|
37
|
23
|
16
|
31
|
39
|
22
|
22
|
26
|
25
|
23
|
23
|
31
|
42
|
20
|
19
|
15
|
18
|
22
|
24
|
24
|
24
|
20
|
24
|
23
|
20
|
|
2025/06
|
15
|
14
|
35
|
48
|
35
|
28
|
22
|
18
|
17
|
25
|
36
|
34
|
34
|
19
|
27
|
48
|
39
|
11
|
9
|
12
|
13
|
16
|
26
|
34
|
40
|
35
|
14
|
13
|
11
|
15
|
|
|
2025/05
|
56
|
54
|
58
|
52
|
46
|
118
|
107
|
48
|
36
|
34
|
39
|
38
|
42
|
53
|
55
|
38
|
87
|
83
|
64
|
43
|
26
|
40
|
62
|
67
|
58
|
58
|
63
|
62
|
37
|
40
|
31
|
|
2025/04
|
52
|
63
|
61
|
57
|
77
|
62
|
56
|
57
|
63
|
67
|
51
|
201
|
93
|
81
|
40
|
52
|
63
|
59
|
69
|
70
|
40
|
89
|
67
|
62
|
62
|
53
|
41
|
63
|
52
|
46
|
|
|
2025/03
|
76
|
35
|
22
|
44
|
60
|
75
|
56
|
64
|
101
|
109
|
88
|
148
|
103
|
43
|
40
|
47
|
36
|
48
|
45
|
45
|
41
|
53
|
56
|
59
|
54
|
52
|
103
|
90
|
133
|
82
|
59
|
|
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