Past measurement result　by Seawater Radiation Monitor near Fukushima Daiichi Nuclear Power Station

○Information

○Measurement value list ： 2025/12/07(CSV Download)

Radioactivity Concentration Unit:Bq/L

※ When being smaller then detection limit value, the numerical value is indicated with ND

TimeCs137Cs134Totalβ
00:00NDND16
00:10NDND19
00:20NDND16
00:30NDND17
00:40NDND17
00:50NDND17
01:00NDND17
01:10NDND16
01:20NDND16
01:30NDND17
01:40NDND17
01:50NDND14
02:00NDND14
02:10NDND14
02:20NDND15
02:30NDND13
02:40NDND13
02:50NDND15
03:00NDND15
03:10NDND14
03:20NDND14
03:30NDND18
03:40NDND16
03:50NDND16
04:00NDND16
04:10NDND17
04:20NDND19
04:30NDND20
04:40NDND21
04:50NDND21
05:00NDND19
05:10NDND17
05:20NDND15
05:30NDND12
05:40NDND13
05:50NDND11
06:00NDND13
06:10NDND12
06:20NDND14
06:30NDND13
06:40NDND11
06:50NDND12
07:00NDND14
07:10NDND16
07:20NDND15
07:30NDND16
07:40NDND16
07:50NDND16
08:00NDND15
08:10NDND15
08:20NDND13
08:30NDND13
08:40NDND16
08:50NDND18
09:00NDND17
09:10NDND16
09:20NDND19
09:30NDND20
09:40NDND18
09:50NDND15
10:00NDND17
10:10NDND17
10:20NDND16
10:30NDND13
10:40NDND14
10:50NDND12
11:00NDND12
11:10NDND15
11:20NDND14
11:30NDND17
11:40NDND17
11:50NDND20
12:00NDND16
12:10NDND15
12:20NDND16
12:30NDND14
12:40NDND12
12:50NDND14
13:00NDND16
13:10NDND18
13:20NDND16
13:30NDND19
13:40NDND20
13:50NDND17
14:00NDND18
14:10NDND18
14:20NDND19
14:30NDND18
14:40NDND18
14:50NDND21
15:00NDND21
15:10NDND18
15:20NDND18
15:30NDND18
15:40NDND18
15:50NDND16
16:00NDND14
16:10NDND14
16:20NDND16
16:30NDND15
16:40NDND17
16:50NDND16
17:00NDND19
17:10NDND20
17:20NDND19
17:30NDND18
17:40NDND17
17:50NDND19
18:00NDND18
18:10NDND19
18:20NDND21
18:30NDND21
18:40NDND18
18:50NDND16
19:00NDND14
19:10NDND14
19:20NDND13
19:30NDND14
19:40NDND16
19:50NDND19
20:00NDND20
20:10NDND21
20:20NDND21
20:30NDND21
20:40NDND21
20:50NDND20
21:00NDND21
21:10NDND19
21:20NDND18
21:30NDND17
21:40NDND18
21:50NDND17
22:00NDND17
22:10NDND16
22:20NDND18
22:30NDND20
22:40NDND20
22:50NDND23
23:00NDND23
23:10NDND22
23:20NDND19
23:30NDND17
23:40NDND16
23:50NDND15