Air Quality
Excellent
No health implications.
10
PM2.5
14
PM10
108
O3
0.5
CO
7
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
85
Good
Sun
24 May
52
Good
Mon
25 May
82
Good
Tue
26 May
82
Good
Wed
27 May
82
Good
Thu
28 May
85
Good
Fri
29 May
31
Excellent
Air quality in the last 12 months (Yucheng)
|
2026/04
|
22
|
31
|
39
|
62
|
54
|
32
|
20
|
32
|
28
|
25
|
25
|
33
|
17
|
25
|
29
|
33
|
26
|
31
|
48
|
108
|
45
|
24
|
29
|
38
|
45
|
51
|
33
|
20
|
26
|
41
|
|
|
2026/03
|
14
|
18
|
16
|
16
|
25
|
42
|
35
|
27
|
16
|
24
|
33
|
35
|
48
|
23
|
29
|
46
|
24
|
22
|
41
|
33
|
48
|
33
|
36
|
23
|
26
|
30
|
22
|
29
|
32
|
22
|
20
|
|
2026/02
|
69
|
82
|
99
|
113
|
66
|
78
|
64
|
28
|
44
|
24
|
38
|
58
|
50
|
59
|
63
|
51
|
161
|
75
|
53
|
50
|
56
|
61
|
76
|
29
|
46
|
49
|
43
|
26
|
|||
|
2026/01
|
41
|
56
|
37
|
28
|
59
|
50
|
46
|
42
|
64
|
99
|
114
|
151
|
125
|
103
|
53
|
82
|
87
|
122
|
79
|
43
|
52
|
73
|
98
|
102
|
85
|
84
|
101
|
110
|
112
|
50
|
71
|
|
2025/12
|
85
|
92
|
46
|
64
|
64
|
82
|
46
|
88
|
111
|
65
|
87
|
62
|
37
|
65
|
75
|
81
|
50
|
100
|
102
|
58
|
58
|
73
|
53
|
54
|
58
|
72
|
86
|
81
|
140
|
121
|
70
|
|
2025/11
|
9
|
22
|
29
|
23
|
25
|
22
|
18
|
20
|
34
|
38
|
18
|
13
|
25
|
25
|
23
|
49
|
19
|
28
|
24
|
32
|
42
|
62
|
45
|
70
|
78
|
88
|
52
|
62
|
82
|
58
|
|
|
2025/10
|
30
|
17
|
31
|
30
|
19
|
17
|
18
|
22
|
27
|
40
|
24
|
14
|
16
|
31
|
40
|
52
|
27
|
16
|
21
|
8
|
13
|
20
|
10
|
8
|
12
|
11
|
14
|
30
|
23
|
30
|
16
|
|
2025/09
|
30
|
32
|
23
|
42
|
36
|
33
|
55
|
34
|
30
|
36
|
21
|
11
|
20
|
37
|
44
|
19
|
16
|
15
|
11
|
20
|
25
|
10
|
13
|
18
|
26
|
41
|
49
|
18
|
9
|
18
|
|
|
2025/08
|
33
|
32
|
35
|
40
|
40
|
27
|
19
|
32
|
19
|
12
|
13
|
24
|
26
|
24
|
27
|
31
|
20
|
15
|
19
|
25
|
15
|
16
|
23
|
17
|
21
|
28
|
26
|
13
|
9
|
9
|
22
|
|
2025/07
|
23
|
25
|
24
|
19
|
9
|
18
|
16
|
29
|
24
|
29
|
14
|
21
|
26
|
36
|
40
|
44
|
45
|
43
|
24
|
22
|
17
|
21
|
25
|
20
|
20
|
10
|
19
|
22
|
26
|
23
|
33
|
|
2025/06
|
12
|
17
|
27
|
35
|
40
|
33
|
42
|
17
|
22
|
27
|
27
|
32
|
40
|
44
|
25
|
28
|
33
|
36
|
9
|
20
|
21
|
26
|
21
|
11
|
11
|
21
|
27
|
34
|
22
|
12
|
|
|
2025/05
|
30
|
37
|
24
|
41
|
16
|
17
|
28
|
17
|
58
|
73
|
54
|
45
|
38
|
34
|
30
|
29
|
22
|
31
|
31
|
42
|
49
|
44
|
35
|
37
|
45
|
59
|
28
|
16
|
30
|
27
|
12
|
|
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