Air Quality
Excellent
No health implications.
5
PM2.5
20
PM10
40
O3
0.3
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Aug
52
Good
Thu
14 Aug
54
Good
Fri
15 Aug
54
Good
Sat
16 Aug
55
Good
Sun
17 Aug
58
Good
Mon
18 Aug
52
Good
Tue
19 Aug
37
Excellent
Air quality in the last 12 months (Sanmen)
|
2025/06
|
25
|
33
|
20
|
33
|
37
|
29
|
35
|
39
|
31
|
25
|
14
|
23
|
13
|
16
|
17
|
19
|
37
|
29
|
18
|
16
|
27
|
37
|
25
|
27
|
25
|
33
|
26
|
21
|
16
|
10
|
|
|
2025/05
|
38
|
40
|
49
|
28
|
33
|
59
|
65
|
46
|
26
|
34
|
36
|
34
|
32
|
31
|
25
|
26
|
33
|
38
|
26
|
26
|
20
|
30
|
17
|
38
|
53
|
37
|
28
|
26
|
23
|
44
|
43
|
|
2025/04
|
38
|
48
|
59
|
42
|
42
|
58
|
51
|
54
|
56
|
46
|
48
|
78
|
94
|
86
|
57
|
58
|
59
|
51
|
38
|
57
|
42
|
31
|
29
|
43
|
34
|
36
|
39
|
38
|
38
|
33
|
|
|
2025/03
|
40
|
41
|
49
|
18
|
28
|
27
|
46
|
60
|
51
|
34
|
46
|
45
|
24
|
31
|
12
|
41
|
41
|
49
|
52
|
56
|
46
|
49
|
53
|
60
|
65
|
63
|
59
|
48
|
45
|
42
|
30
|
|
2025/02
|
21
|
32
|
67
|
60
|
46
|
53
|
56
|
35
|
39
|
49
|
35
|
58
|
69
|
40
|
54
|
69
|
66
|
31
|
52
|
39
|
20
|
39
|
53
|
96
|
92
|
93
|
85
|
46
|
|||
|
2025/01
|
63
|
56
|
58
|
54
|
68
|
81
|
84
|
86
|
52
|
37
|
60
|
66
|
70
|
63
|
67
|
48
|
67
|
65
|
59
|
88
|
117
|
70
|
42
|
42
|
42
|
39
|
38
|
38
|
78
|
51
|
34
|
|
2024/12
|
58
|
54
|
64
|
52
|
43
|
47
|
132
|
50
|
42
|
53
|
26
|
68
|
39
|
115
|
63
|
55
|
61
|
71
|
34
|
48
|
76
|
61
|
57
|
48
|
58
|
103
|
68
|
53
|
59
|
61
|
81
|
|
2024/11
|
8
|
24
|
53
|
58
|
36
|
30
|
31
|
36
|
34
|
24
|
28
|
40
|
44
|
37
|
20
|
19
|
14
|
23
|
27
|
34
|
47
|
67
|
51
|
35
|
39
|
30
|
48
|
54
|
50
|
51
|
|
|
2024/10
|
16
|
21
|
22
|
22
|
16
|
12
|
10
|
24
|
38
|
48
|
58
|
46
|
30
|
35
|
34
|
28
|
32
|
37
|
26
|
33
|
48
|
36
|
32
|
27
|
30
|
19
|
16
|
33
|
46
|
33
|
20
|
|
2024/09
|
34
|
36
|
30
|
24
|
22
|
28
|
32
|
22
|
28
|
34
|
20
|
28
|
16
|
24
|
21
|
19
|
17
|
19
|
14
|
19
|
20
|
25
|
22
|
26
|
30
|
29
|
24
|
31
|
31
|
20
|
|
|
2024/08
|
25
|
34
|
38
|
43
|
34
|
32
|
39
|
34
|
30
|
33
|
41
|
45
|
43
|
26
|
37
|
41
|
29
|
18
|
15
|
20
|
19
|
24
|
35
|
37
|
31
|
26
|
40
|
25
|
26
|
23
|
28
|
|
2024/07
|
35
|
32
|
27
|
27
|
32
|
25
|
26
|
25
|
30
|
35
|
42
|
45
|
33
|
27
|
22
|
18
|
25
|
28
|
31
|
21
|
24
|
17
|
18
|
20
|
26
|
21
|
23
|
21
|
16
|
16
|
18
|
|
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