Air Quality
Excellent
No health implications.
13
PM2.5
20
PM10
27
O3
0.5
CO
8
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Jul
81
Good
Sat
19 Jul
52
Good
Sun
20 Jul
67
Good
Mon
21 Jul
75
Good
Tue
22 Jul
61
Good
Wed
23 Jul
55
Good
Thu
24 Jul
37
Excellent
Air quality in the last 12 months (Youxian)
|
2025/06
|
28
|
30
|
41
|
44
|
47
|
65
|
54
|
48
|
36
|
35
|
31
|
53
|
55
|
51
|
52
|
46
|
52
|
17
|
30
|
34
|
36
|
20
|
24
|
21
|
23
|
27
|
35
|
40
|
30
|
15
|
|
|
2025/05
|
50
|
57
|
62
|
61
|
35
|
46
|
38
|
36
|
207
|
115
|
70
|
69
|
46
|
53
|
63
|
137
|
122
|
150
|
109
|
79
|
95
|
71
|
70
|
61
|
54
|
57
|
49
|
28
|
43
|
36
|
27
|
|
2025/04
|
50
|
65
|
59
|
64
|
56
|
45
|
61
|
63
|
67
|
53
|
53
|
210
|
188
|
94
|
92
|
85
|
73
|
70
|
63
|
62
|
58
|
69
|
77
|
39
|
44
|
37
|
34
|
47
|
34
|
36
|
|
|
2025/03
|
61
|
61
|
43
|
21
|
27
|
31
|
33
|
58
|
37
|
58
|
61
|
82
|
56
|
26
|
36
|
36
|
50
|
54
|
52
|
62
|
65
|
66
|
71
|
54
|
55
|
57
|
160
|
75
|
64
|
34
|
41
|
|
2025/02
|
53
|
52
|
41
|
62
|
38
|
35
|
34
|
28
|
47
|
60
|
67
|
60
|
59
|
49
|
50
|
62
|
47
|
50
|
63
|
49
|
40
|
33
|
40
|
28
|
24
|
43
|
59
|
63
|
|||
|
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
|
|
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