Air Quality
Excellent
No health implications.
4
PM2.5
10
PM10
15
O3
1.1
CO
5
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
2 Feb
61
Good
Mon
3 Feb
66
Good
Tue
4 Feb
71
Good
Wed
5 Feb
70
Good
Thu
6 Feb
70
Good
Fri
7 Feb
66
Good
Sat
8 Feb
20
Excellent
Air quality in the last 12 months (Ruyuan)
|
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
|
||
|
2024/01
|
100
|
69
|
35
|
50
|
74
|
81
|
57
|
58
|
34
|
41
|
60
|
55
|
64
|
70
|
87
|
82
|
85
|
40
|
44
|
14
|
20
|
13
|
38
|
40
|
52
|
46
|
46
|
56
|
60
|
74
|
64
|
|
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