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

○Information

○Measurement value list ： 2026/10/04(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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