Air Quality
Excellent
No health implications.
10
PM2.5
12
PM10
25
O3
0.5
CO
3
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Feb
41
Excellent
Wed
26 Feb
57
Good
Thu
27 Feb
59
Good
Fri
28 Feb
56
Good
Sat
1 Mar
48
Excellent
Sun
2 Mar
41
Excellent
Mon
3 Mar
49
Excellent
Air quality in the last 12 months (Youxian)
|
2025/01
|
101
|
96
|
111
|
121
|
71
|
83
|
60
|
46
|
55
|
54
|
47
|
57
|
72
|
69
|
66
|
41
|
69
|
51
|
85
|
99
|
114
|
144
|
155
|
75
|
37
|
71
|
73
|
81
|
171
|
97
|
61
|
|
2024/12
|
89
|
91
|
82
|
58
|
46
|
32
|
36
|
24
|
25
|
42
|
49
|
51
|
37
|
56
|
69
|
89
|
107
|
119
|
84
|
64
|
53
|
54
|
80
|
66
|
65
|
88
|
92
|
71
|
78
|
76
|
85
|
|
2024/11
|
29
|
24
|
36
|
26
|
29
|
36
|
59
|
82
|
52
|
28
|
35
|
27
|
27
|
41
|
45
|
25
|
17
|
7
|
10
|
33
|
32
|
47
|
61
|
29
|
12
|
30
|
41
|
52
|
62
|
76
|
|
|
2024/10
|
27
|
26
|
31
|
23
|
44
|
58
|
55
|
56
|
45
|
40
|
40
|
34
|
28
|
39
|
50
|
54
|
29
|
39
|
19
|
10
|
14
|
30
|
43
|
47
|
40
|
26
|
18
|
37
|
50
|
40
|
30
|
|
2024/09
|
39
|
43
|
50
|
46
|
29
|
33
|
38
|
42
|
33
|
15
|
20
|
24
|
32
|
33
|
25
|
31
|
37
|
43
|
43
|
38
|
17
|
25
|
32
|
48
|
52
|
63
|
88
|
76
|
37
|
12
|
|
|
2024/08
|
46
|
45
|
30
|
14
|
25
|
35
|
28
|
30
|
33
|
47
|
47
|
50
|
52
|
55
|
34
|
28
|
36
|
30
|
41
|
49
|
50
|
53
|
51
|
40
|
44
|
37
|
37
|
35
|
30
|
29
|
41
|
|
2024/07
|
20
|
31
|
19
|
21
|
23
|
37
|
18
|
12
|
12
|
19
|
34
|
40
|
22
|
15
|
13
|
24
|
18
|
17
|
22
|
21
|
21
|
24
|
30
|
32
|
59
|
62
|
42
|
34
|
27
|
30
|
39
|
|
2024/06
|
46
|
27
|
36
|
26
|
32
|
29
|
39
|
35
|
28
|
40
|
49
|
33
|
49
|
43
|
52
|
34
|
17
|
29
|
41
|
24
|
26
|
32
|
44
|
67
|
29
|
30
|
22
|
33
|
46
|
36
|
|
|
2024/05
|
18
|
18
|
13
|
30
|
106
|
111
|
78
|
88
|
75
|
61
|
51
|
64
|
58
|
59
|
55
|
56
|
54
|
70
|
33
|
29
|
35
|
42
|
50
|
53
|
41
|
32
|
32
|
27
|
22
|
35
|
51
|
|
2024/04
|
39
|
60
|
72
|
69
|
35
|
34
|
33
|
56
|
43
|
19
|
28
|
43
|
52
|
54
|
60
|
55
|
45
|
41
|
18
|
62
|
69
|
55
|
30
|
40
|
36
|
55
|
55
|
67
|
41
|
17
|
|
|
2024/03
|
68
|
63
|
77
|
77
|
72
|
62
|
63
|
71
|
55
|
52
|
68
|
67
|
24
|
52
|
63
|
103
|
86
|
43
|
62
|
61
|
64
|
71
|
66
|
37
|
23
|
35
|
35
|
46
|
51
|
41
|
35
|
|
2024/02
|
73
|
52
|
22
|
29
|
36
|
50
|
47
|
61
|
102
|
173
|
124
|
93
|
81
|
81
|
46
|
38
|
50
|
55
|
224
|
319
|
45
|
50
|
29
|
46
|
59
|
65
|
65
|
62
|
50
|
||
|
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