Air Quality
Excellent
No health implications.
31
PM2.5
39
PM10
36
O3
0.8
CO
9
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Feb
48
Excellent
Mon
2 Feb
60
Good
Tue
3 Feb
64
Good
Wed
4 Feb
69
Good
Thu
5 Feb
73
Good
Fri
6 Feb
76
Good
Sat
7 Feb
33
Excellent
Air quality in the last 12 months (Renhuai)
|
2025/12
|
139
|
145
|
82
|
54
|
60
|
99
|
57
|
78
|
71
|
59
|
88
|
80
|
33
|
48
|
59
|
83
|
64
|
102
|
101
|
51
|
67
|
53
|
30
|
40
|
48
|
57
|
75
|
107
|
96
|
67
|
27
|
|
2025/11
|
17
|
20
|
15
|
18
|
25
|
21
|
14
|
14
|
12
|
14
|
26
|
25
|
31
|
47
|
48
|
66
|
25
|
15
|
27
|
38
|
51
|
76
|
50
|
52
|
62
|
79
|
77
|
120
|
117
|
140
|
|
|
2025/10
|
21
|
23
|
31
|
25
|
25
|
30
|
29
|
20
|
21
|
33
|
38
|
33
|
21
|
38
|
24
|
21
|
21
|
9
|
10
|
9
|
9
|
16
|
23
|
36
|
38
|
30
|
23
|
40
|
36
|
28
|
27
|
|
2025/09
|
43
|
37
|
33
|
32
|
34
|
24
|
46
|
31
|
20
|
30
|
31
|
28
|
22
|
26
|
31
|
27
|
30
|
24
|
34
|
35
|
24
|
19
|
19
|
17
|
21
|
20
|
24
|
31
|
33
|
39
|
|
|
2025/08
|
32
|
37
|
41
|
40
|
42
|
25
|
30
|
29
|
31
|
34
|
14
|
19
|
30
|
28
|
23
|
16
|
25
|
28
|
20
|
20
|
23
|
14
|
20
|
28
|
23
|
27
|
24
|
27
|
38
|
45
|
36
|
|
2025/07
|
21
|
14
|
17
|
20
|
24
|
33
|
30
|
35
|
18
|
21
|
24
|
31
|
34
|
33
|
34
|
37
|
33
|
40
|
27
|
24
|
17
|
17
|
17
|
17
|
21
|
25
|
25
|
30
|
30
|
30
|
30
|
|
2025/06
|
14
|
13
|
23
|
28
|
34
|
51
|
49
|
45
|
31
|
31
|
40
|
39
|
41
|
39
|
29
|
37
|
37
|
22
|
11
|
24
|
27
|
15
|
26
|
20
|
14
|
17
|
23
|
26
|
23
|
19
|
|
|
2025/05
|
38
|
53
|
57
|
41
|
39
|
28
|
31
|
19
|
30
|
34
|
38
|
38
|
53
|
44
|
50
|
57
|
40
|
46
|
54
|
51
|
26
|
22
|
35
|
48
|
40
|
43
|
19
|
12
|
19
|
25
|
19
|
|
2025/04
|
39
|
49
|
55
|
59
|
63
|
63
|
57
|
69
|
72
|
75
|
62
|
108
|
174
|
90
|
78
|
68
|
54
|
58
|
22
|
26
|
40
|
26
|
40
|
22
|
36
|
32
|
19
|
28
|
35
|
15
|
|
|
2025/03
|
71
|
101
|
52
|
37
|
28
|
27
|
41
|
42
|
41
|
47
|
47
|
58
|
56
|
44
|
28
|
27
|
24
|
26
|
29
|
44
|
54
|
62
|
64
|
57
|
63
|
57
|
63
|
75
|
27
|
25
|
40
|
|
2025/02
|
44
|
34
|
35
|
44
|
47
|
30
|
31
|
44
|
50
|
56
|
59
|
72
|
39
|
26
|
41
|
55
|
48
|
41
|
41
|
34
|
35
|
25
|
36
|
36
|
33
|
50
|
58
|
68
|
|||
|
2025/01
|
110
|
117
|
120
|
104
|
102
|
116
|
68
|
50
|
37
|
45
|
46
|
60
|
67
|
78
|
69
|
74
|
82
|
63
|
60
|
89
|
113
|
102
|
105
|
62
|
34
|
35
|
51
|
59
|
153
|
87
|
61
|
|
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