Air Quality
Excellent
No health implications.
3
PM2.5
5
PM10
49
O3
0.4
CO
4
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Mar
46
Excellent
Fri
14 Mar
50
Excellent
Sat
15 Mar
42
Excellent
Sun
16 Mar
47
Excellent
Mon
17 Mar
56
Good
Tue
18 Mar
70
Good
Wed
19 Mar
20
Excellent
Air quality in the last 12 months (Sanmen)
|
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
|
|
2024/06
|
21
|
19
|
33
|
54
|
40
|
13
|
18
|
37
|
39
|
18
|
15
|
22
|
28
|
29
|
35
|
26
|
14
|
25
|
28
|
28
|
38
|
39
|
43
|
31
|
25
|
24
|
42
|
29
|
24
|
28
|
|
|
2024/05
|
19
|
39
|
33
|
36
|
48
|
41
|
53
|
51
|
27
|
32
|
39
|
38
|
49
|
43
|
52
|
37
|
28
|
37
|
33
|
30
|
28
|
34
|
30
|
37
|
19
|
21
|
26
|
17
|
28
|
38
|
41
|
|
2024/04
|
53
|
28
|
33
|
28
|
33
|
35
|
38
|
26
|
48
|
58
|
50
|
30
|
30
|
24
|
55
|
62
|
24
|
43
|
99
|
66
|
41
|
19
|
26
|
36
|
38
|
46
|
43
|
28
|
42
|
19
|
|
|
2024/03
|
28
|
52
|
57
|
56
|
42
|
30
|
70
|
65
|
69
|
54
|
44
|
70
|
55
|
66
|
54
|
37
|
56
|
60
|
54
|
78
|
72
|
69
|
60
|
52
|
53
|
25
|
39
|
36
|
46
|
50
|
54
|
|
2024/02
|
24
|
20
|
15
|
20
|
20
|
41
|
39
|
75
|
121
|
157
|
76
|
66
|
52
|
44
|
39
|
25
|
33
|
41
|
41
|
24
|
21
|
15
|
33
|
29
|
50
|
85
|
76
|
38
|
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