Air Quality
Excellent
No health implications.
33
PM2.5
50
PM10
24
O3
0.5
CO
2
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 May
48
Excellent
Thu
22 May
52
Good
Fri
23 May
55
Good
Sat
24 May
47
Excellent
Sun
25 May
63
Good
Mon
26 May
25
Excellent
Tue
27 May
47
Excellent
Air quality in the last 12 months (Rui'an)
|
2025/04
|
30
|
50
|
55
|
52
|
41
|
57
|
56
|
53
|
63
|
48
|
41
|
47
|
95
|
88
|
67
|
61
|
84
|
70
|
46
|
45
|
52
|
40
|
30
|
33
|
24
|
48
|
45
|
41
|
38
|
35
|
|
|
2025/03
|
62
|
57
|
52
|
32
|
21
|
18
|
42
|
53
|
53
|
40
|
65
|
50
|
29
|
32
|
19
|
32
|
42
|
45
|
48
|
55
|
50
|
49
|
61
|
75
|
87
|
72
|
61
|
35
|
46
|
29
|
27
|
|
2025/02
|
27
|
13
|
43
|
72
|
49
|
51
|
46
|
39
|
36
|
43
|
39
|
39
|
81
|
46
|
46
|
65
|
68
|
30
|
50
|
28
|
16
|
38
|
24
|
85
|
99
|
70
|
68
|
54
|
|||
|
2025/01
|
83
|
45
|
50
|
44
|
44
|
65
|
73
|
72
|
63
|
42
|
43
|
54
|
55
|
56
|
83
|
46
|
59
|
59
|
49
|
61
|
97
|
73
|
43
|
27
|
36
|
31
|
28
|
39
|
71
|
44
|
40
|
|
2024/12
|
48
|
52
|
50
|
53
|
50
|
33
|
35
|
67
|
34
|
44
|
22
|
32
|
17
|
99
|
90
|
58
|
52
|
64
|
38
|
31
|
54
|
63
|
42
|
36
|
41
|
72
|
121
|
68
|
61
|
53
|
67
|
|
2024/11
|
9
|
12
|
38
|
47
|
49
|
31
|
26
|
30
|
31
|
30
|
22
|
30
|
33
|
28
|
14
|
15
|
19
|
13
|
18
|
21
|
35
|
31
|
42
|
29
|
32
|
20
|
38
|
38
|
41
|
44
|
|
|
2024/10
|
16
|
13
|
19
|
17
|
20
|
13
|
14
|
13
|
36
|
45
|
52
|
43
|
31
|
48
|
33
|
25
|
37
|
36
|
27
|
15
|
34
|
38
|
27
|
36
|
25
|
18
|
17
|
18
|
47
|
37
|
21
|
|
2024/09
|
34
|
31
|
22
|
22
|
23
|
15
|
21
|
12
|
26
|
39
|
32
|
29
|
15
|
23
|
23
|
20
|
19
|
22
|
17
|
21
|
23
|
12
|
15
|
14
|
13
|
19
|
22
|
28
|
31
|
23
|
|
|
2024/08
|
36
|
42
|
41
|
42
|
27
|
23
|
38
|
35
|
38
|
40
|
50
|
46
|
44
|
34
|
24
|
24
|
20
|
18
|
14
|
18
|
20
|
27
|
38
|
42
|
31
|
25
|
44
|
27
|
34
|
27
|
33
|
|
2024/07
|
28
|
27
|
32
|
28
|
32
|
26
|
28
|
27
|
32
|
35
|
40
|
44
|
33
|
33
|
22
|
15
|
24
|
32
|
28
|
19
|
20
|
12
|
16
|
17
|
20
|
20
|
17
|
17
|
12
|
14
|
23
|
|
2024/06
|
8
|
14
|
21
|
38
|
37
|
11
|
17
|
35
|
28
|
18
|
25
|
28
|
28
|
39
|
18
|
20
|
19
|
18
|
36
|
50
|
43
|
46
|
50
|
25
|
20
|
28
|
44
|
29
|
22
|
24
|
|
|
2024/05
|
14
|
27
|
34
|
40
|
58
|
43
|
44
|
51
|
25
|
26
|
45
|
41
|
34
|
36
|
50
|
31
|
29
|
32
|
31
|
30
|
25
|
32
|
40
|
24
|
13
|
24
|
25
|
15
|
25
|
25
|
30
|
|
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