Air Quality
Excellent
No health implications.
9
PM2.5
14
PM10
46
O3
0.9
CO
5
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 May
106
Light
Thu
22 May
88
Good
Fri
23 May
69
Good
Sat
24 May
70
Good
Sun
25 May
104
Light
Mon
26 May
112
Light
Tue
27 May
33
Excellent
Air quality in the last 12 months (Yuhuatai)
|
2025/04
|
42
|
59
|
32
|
61
|
76
|
63
|
63
|
62
|
77
|
71
|
75
|
170
|
93
|
69
|
48
|
56
|
64
|
64
|
78
|
49
|
57
|
64
|
59
|
71
|
63
|
45
|
42
|
56
|
57
|
61
|
|
|
2025/03
|
50
|
55
|
18
|
31
|
48
|
46
|
58
|
75
|
69
|
55
|
76
|
103
|
61
|
38
|
33
|
40
|
35
|
39
|
50
|
49
|
47
|
55
|
62
|
66
|
57
|
61
|
110
|
66
|
101
|
71
|
37
|
|
2025/02
|
36
|
60
|
80
|
68
|
43
|
38
|
55
|
28
|
36
|
53
|
53
|
93
|
65
|
66
|
94
|
87
|
67
|
44
|
60
|
50
|
40
|
61
|
72
|
62
|
82
|
98
|
82
|
65
|
|||
|
2025/01
|
80
|
76
|
84
|
73
|
96
|
74
|
45
|
62
|
34
|
45
|
61
|
63
|
72
|
96
|
63
|
57
|
68
|
79
|
99
|
98
|
126
|
122
|
73
|
49
|
28
|
61
|
47
|
41
|
87
|
56
|
70
|
|
2024/12
|
62
|
68
|
73
|
44
|
70
|
116
|
126
|
35
|
48
|
48
|
46
|
59
|
81
|
61
|
58
|
59
|
68
|
67
|
40
|
56
|
83
|
56
|
56
|
60
|
93
|
111
|
58
|
65
|
64
|
67
|
97
|
|
2024/11
|
23
|
53
|
56
|
64
|
46
|
40
|
32
|
30
|
41
|
39
|
48
|
55
|
59
|
62
|
84
|
47
|
29
|
30
|
27
|
33
|
45
|
71
|
30
|
35
|
31
|
38
|
63
|
59
|
42
|
59
|
|
|
2024/10
|
23
|
33
|
21
|
24
|
26
|
11
|
11
|
32
|
33
|
50
|
63
|
71
|
46
|
41
|
60
|
56
|
35
|
23
|
28
|
35
|
34
|
35
|
51
|
45
|
38
|
26
|
30
|
78
|
46
|
37
|
32
|
|
2024/09
|
43
|
39
|
25
|
29
|
28
|
36
|
39
|
43
|
21
|
27
|
12
|
16
|
27
|
30
|
21
|
17
|
14
|
18
|
18
|
9
|
23
|
27
|
27
|
32
|
42
|
39
|
29
|
32
|
40
|
38
|
|
|
2024/08
|
22
|
22
|
28
|
30
|
27
|
30
|
36
|
34
|
36
|
38
|
41
|
55
|
33
|
27
|
20
|
28
|
33
|
31
|
20
|
17
|
24
|
36
|
36
|
39
|
37
|
36
|
24
|
16
|
20
|
28
|
41
|
|
2024/07
|
9
|
13
|
22
|
19
|
22
|
21
|
21
|
20
|
22
|
24
|
40
|
14
|
13
|
13
|
19
|
37
|
23
|
24
|
25
|
20
|
17
|
23
|
31
|
23
|
19
|
19
|
10
|
12
|
15
|
27
|
25
|
|
2024/06
|
39
|
31
|
38
|
37
|
39
|
17
|
26
|
37
|
38
|
19
|
16
|
35
|
53
|
47
|
48
|
42
|
29
|
35
|
17
|
26
|
29
|
15
|
24
|
29
|
31
|
40
|
21
|
13
|
10
|
10
|
|
|
2024/05
|
39
|
37
|
39
|
41
|
37
|
44
|
59
|
43
|
36
|
45
|
45
|
88
|
81
|
59
|
62
|
37
|
52
|
52
|
32
|
43
|
37
|
35
|
44
|
47
|
38
|
40
|
27
|
26
|
35
|
27
|
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