Air Quality
Excellent
No health implications.
1
PM2.5
4
PM10
88
O3
0.5
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Apr
37
Excellent
Sun
21 Apr
34
Excellent
Mon
22 Apr
39
Excellent
Tue
23 Apr
38
Excellent
Wed
24 Apr
38
Excellent
Thu
25 Apr
60
Good
Fri
26 Apr
57
Good
Air quality in the last 12 months (Ruyuan)
|
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
|
|
2023/12
|
57
|
47
|
37
|
25
|
23
|
37
|
49
|
58
|
86
|
85
|
50
|
15
|
42
|
55
|
51
|
14
|
28
|
18
|
14
|
41
|
35
|
65
|
50
|
50
|
53
|
58
|
62
|
65
|
76
|
92
|
89
|
|
2023/11
|
47
|
55
|
70
|
71
|
59
|
28
|
28
|
53
|
64
|
28
|
12
|
11
|
12
|
24
|
35
|
29
|
55
|
62
|
58
|
57
|
61
|
69
|
68
|
61
|
73
|
80
|
74
|
60
|
74
|
67
|
|
|
2023/10
|
42
|
40
|
47
|
40
|
28
|
33
|
23
|
15
|
16
|
16
|
24
|
36
|
47
|
57
|
47
|
46
|
52
|
52
|
51
|
21
|
24
|
34
|
40
|
44
|
47
|
56
|
26
|
28
|
40
|
46
|
48
|
|
2023/09
|
27
|
29
|
35
|
30
|
45
|
22
|
16
|
27
|
28
|
25
|
22
|
24
|
28
|
16
|
16
|
29
|
28
|
33
|
36
|
39
|
37
|
34
|
39
|
34
|
43
|
45
|
41
|
43
|
41
|
44
|
|
|
2023/08
|
22
|
35
|
43
|
46
|
33
|
27
|
36
|
39
|
36
|
38
|
26
|
33
|
37
|
35
|
34
|
35
|
39
|
40
|
50
|
42
|
31
|
25
|
32
|
29
|
25
|
28
|
25
|
21
|
19
|
25
|
29
|
|
2023/07
|
32
|
29
|
21
|
21
|
26
|
27
|
23
|
30
|
31
|
30
|
35
|
31
|
32
|
43
|
48
|
40
|
21
|
20
|
18
|
22
|
30
|
39
|
35
|
37
|
41
|
40
|
24
|
29
|
35
|
25
|
25
|
|
2023/06
|
42
|
39
|
48
|
34
|
28
|
31
|
27
|
24
|
26
|
23
|
39
|
50
|
51
|
32
|
42
|
33
|
20
|
16
|
22
|
28
|
30
|
28
|
16
|
15
|
23
|
25
|
35
|
23
|
27
|
35
|
|
|
2023/05
|
60
|
49
|
38
|
30
|
37
|
28
|
16
|
28
|
43
|
59
|
22
|
23
|
42
|
47
|
52
|
56
|
33
|
42
|
44
|
40
|
37
|
32
|
25
|
38
|
41
|
32
|
30
|
41
|
48
|
46
|
44
|
|
2023/04
|
39
|
40
|
29
|
28
|
23
|
20
|
29
|
63
|
61
|
73
|
60
|
52
|
53
|
60
|
43
|
54
|
55
|
51
|
37
|
32
|
39
|
31
|
25
|
17
|
14
|
26
|
41
|
67
|
41
|
56
|
|
|
2023/03
|
75
|
66
|
74
|
57
|
50
|
65
|
63
|
68
|
62
|
55
|
58
|
64
|
83
|
76
|
73
|
67
|
55
|
40
|
53
|
80
|
36
|
42
|
38
|
14
|
12
|
20
|
21
|
28
|
17
|
24
|
34
|
|
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