Air Quality
Excellent
No health implications.
15
PM2.5
28
PM10
137
O3
0.7
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 May
106
Light
Thu
22 May
92
Good
Fri
23 May
60
Good
Sat
24 May
72
Good
Sun
25 May
104
Light
Mon
26 May
114
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