Air Quality
Excellent
No health implications.
20
PM2.5
25
PM10
43
O3
0.5
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Feb
43
Excellent
Sun
23 Feb
42
Excellent
Mon
24 Feb
63
Good
Tue
25 Feb
62
Good
Wed
26 Feb
62
Good
Thu
27 Feb
26
Excellent
Fri
28 Feb
20
Excellent
Air quality in the last 12 months (Ruyuan)
|
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
|
|
2024/12
|
60
|
63
|
63
|
73
|
96
|
56
|
23
|
35
|
81
|
76
|
33
|
37
|
50
|
68
|
51
|
49
|
56
|
52
|
65
|
68
|
65
|
70
|
77
|
76
|
79
|
97
|
115
|
111
|
79
|
82
|
82
|
|
2024/11
|
50
|
55
|
60
|
60
|
49
|
57
|
44
|
51
|
58
|
67
|
54
|
50
|
56
|
58
|
21
|
26
|
24
|
9
|
12
|
25
|
26
|
35
|
36
|
47
|
50
|
15
|
35
|
51
|
50
|
60
|
|
|
2024/10
|
29
|
32
|
43
|
43
|
45
|
51
|
78
|
71
|
49
|
38
|
54
|
56
|
58
|
71
|
58
|
36
|
49
|
46
|
34
|
14
|
24
|
28
|
20
|
32
|
43
|
55
|
28
|
15
|
35
|
49
|
49
|
|
2024/09
|
35
|
34
|
35
|
36
|
36
|
20
|
14
|
20
|
21
|
30
|
33
|
43
|
47
|
34
|
20
|
25
|
35
|
35
|
41
|
36
|
19
|
16
|
30
|
27
|
30
|
38
|
42
|
40
|
46
|
34
|
|
|
2024/08
|
22
|
28
|
34
|
42
|
45
|
34
|
42
|
41
|
37
|
32
|
32
|
20
|
17
|
24
|
18
|
21
|
25
|
22
|
25
|
28
|
13
|
29
|
30
|
37
|
34
|
33
|
37
|
34
|
35
|
49
|
43
|
|
2024/07
|
28
|
23
|
18
|
30
|
29
|
28
|
24
|
23
|
26
|
23
|
24
|
21
|
22
|
28
|
27
|
18
|
22
|
25
|
30
|
31
|
21
|
23
|
22
|
36
|
50
|
38
|
14
|
12
|
15
|
21
|
18
|
|
2024/06
|
18
|
13
|
34
|
19
|
11
|
21
|
42
|
41
|
22
|
18
|
21
|
28
|
26
|
17
|
12
|
16
|
25
|
16
|
27
|
30
|
23
|
34
|
20
|
16
|
22
|
33
|
31
|
22
|
25
|
24
|
|
|
2024/05
|
10
|
24
|
24
|
21
|
17
|
35
|
36
|
41
|
56
|
59
|
44
|
25
|
48
|
55
|
52
|
54
|
60
|
35
|
21
|
17
|
24
|
25
|
24
|
22
|
19
|
25
|
21
|
26
|
28
|
34
|
29
|
|
2024/04
|
50
|
52
|
42
|
33
|
10
|
11
|
11
|
13
|
31
|
44
|
62
|
72
|
67
|
51
|
60
|
53
|
39
|
28
|
22
|
12
|
13
|
35
|
35
|
31
|
31
|
23
|
29
|
28
|
25
|
23
|
|
|
2024/03
|
52
|
33
|
40
|
15
|
40
|
49
|
56
|
50
|
48
|
24
|
18
|
40
|
56
|
35
|
29
|
35
|
57
|
53
|
19
|
68
|
73
|
55
|
45
|
41
|
32
|
22
|
49
|
35
|
36
|
51
|
41
|
|
2024/02
|
52
|
31
|
29
|
12
|
22
|
16
|
13
|
26
|
51
|
79
|
63
|
57
|
50
|
51
|
46
|
25
|
45
|
31
|
37
|
31
|
36
|
12
|
10
|
14
|
15
|
12
|
17
|
16
|
15
|
||
|
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