Air Quality
Excellent
No health implications.
31
PM2.5
37
PM10
50
O3
0.9
CO
9
SO2
23
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Jan
88
Good
Thu
29 Jan
67
Good
Fri
30 Jan
63
Good
Sat
31 Jan
56
Good
Sun
1 Feb
59
Good
Mon
2 Feb
62
Good
Tue
3 Feb
46
Excellent
Air quality in the last 12 months (Ruyuan)
|
2025/12
|
70
|
76
|
83
|
70
|
70
|
72
|
71
|
69
|
75
|
78
|
77
|
77
|
17
|
25
|
44
|
52
|
51
|
61
|
66
|
60
|
84
|
90
|
80
|
32
|
24
|
46
|
49
|
52
|
61
|
60
|
71
|
|
2025/11
|
34
|
33
|
20
|
9
|
14
|
22
|
40
|
27
|
9
|
11
|
11
|
22
|
22
|
37
|
46
|
46
|
55
|
18
|
26
|
36
|
43
|
50
|
58
|
57
|
42
|
60
|
60
|
64
|
65
|
69
|
|
|
2025/10
|
46
|
28
|
29
|
40
|
20
|
16
|
28
|
38
|
37
|
48
|
47
|
35
|
26
|
29
|
41
|
38
|
46
|
37
|
14
|
11
|
9
|
13
|
28
|
40
|
44
|
63
|
60
|
63
|
67
|
71
|
37
|
|
2025/09
|
26
|
35
|
35
|
38
|
42
|
44
|
39
|
14
|
15
|
18
|
24
|
23
|
32
|
37
|
35
|
21
|
31
|
35
|
28
|
14
|
15
|
23
|
14
|
11
|
13
|
22
|
35
|
39
|
41
|
40
|
|
|
2025/08
|
30
|
20
|
20
|
17
|
15
|
11
|
22
|
27
|
44
|
37
|
38
|
41
|
41
|
26
|
10
|
24
|
28
|
16
|
15
|
19
|
24
|
26
|
37
|
25
|
23
|
24
|
30
|
31
|
29
|
28
|
26
|
|
2025/07
|
17
|
29
|
24
|
43
|
49
|
40
|
39
|
43
|
43
|
24
|
16
|
18
|
24
|
32
|
34
|
45
|
45
|
30
|
27
|
17
|
11
|
13
|
18
|
29
|
26
|
35
|
36
|
24
|
26
|
28
|
23
|
|
2025/06
|
30
|
24
|
19
|
34
|
39
|
39
|
37
|
26
|
27
|
32
|
20
|
21
|
26
|
14
|
15
|
35
|
10
|
11
|
17
|
15
|
18
|
22
|
24
|
27
|
34
|
24
|
17
|
19
|
25
|
22
|
|
|
2025/05
|
54
|
55
|
48
|
34
|
26
|
31
|
37
|
28
|
19
|
47
|
37
|
45
|
51
|
52
|
40
|
30
|
18
|
12
|
20
|
24
|
26
|
26
|
24
|
31
|
56
|
50
|
50
|
49
|
13
|
26
|
28
|
|
2025/04
|
38
|
52
|
59
|
74
|
80
|
71
|
71
|
74
|
89
|
43
|
57
|
121
|
249
|
143
|
92
|
87
|
90
|
75
|
34
|
32
|
37
|
39
|
29
|
22
|
15
|
34
|
34
|
22
|
53
|
59
|
|
|
2025/03
|
36
|
38
|
39
|
14
|
12
|
13
|
32
|
38
|
46
|
69
|
65
|
51
|
37
|
41
|
9
|
20
|
51
|
34
|
48
|
52
|
55
|
63
|
74
|
82
|
87
|
66
|
53
|
56
|
15
|
9
|
16
|
|
2025/02
|
50
|
17
|
13
|
40
|
55
|
51
|
25
|
60
|
35
|
48
|
64
|
63
|
54
|
71
|
90
|
52
|
27
|
29
|
50
|
50
|
14
|
29
|
9
|
41
|
64
|
80
|
87
|
60
|
|||
|
2025/01
|
82
|
76
|
77
|
90
|
125
|
111
|
87
|
86
|
80
|
34
|
42
|
52
|
61
|
59
|
68
|
61
|
57
|
56
|
65
|
65
|
67
|
71
|
70
|
93
|
66
|
18
|
38
|
57
|
133
|
87
|
74
|
|
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