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

○Information

○Measurement value list ： 2026/10/05(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND16
00:10NDND18
00:20NDND20
00:30NDND19
00:40NDND18
00:50NDND17
01:00NDND18
01:10NDND20
01:20NDND19
01:30NDND19
01:40NDND18
01:50NDND19
02:00NDND15
02:10NDND13
02:20NDND12
02:30NDND11
02:40NDND10
02:50NDNDND
03:00NDND10
03:10NDND12
03:20NDND14
03:30NDND18
03:40NDND21
03:50NDND21
04:00NDND21
04:10NDND19
04:20NDND19
04:30NDND18
04:40NDND18
04:50NDND18
05:00NDND17
05:10NDND20
05:20NDND22
05:30NDND20
05:40NDND19
05:50NDND19
06:00NDND18
06:10NDND19
06:20NDND17
06:30NDND19
06:40NDND20
06:50NDND21
07:00NDND23
07:10NDND21
07:20NDND21
07:30NDND19
07:40NDND18
07:50NDND16
08:00NDND14
08:10NDND12
08:20NDND11
08:30NDND12
08:40NDND10
08:50NDND11
09:00NDND11
09:10NDND14
09:20NDND16
09:30NDND17
09:40NDND20
09:50NDND20
10:00NDND23
10:10NDND24
10:20NDND21
10:30NDND20
10:40NDND17
10:50NDND18
11:00NDND16
11:10NDND14
11:20NDND16
11:30NDND18
11:40NDND17
11:50NDND18
12:00NDND18
12:10NDND18
12:20NDND17
12:30NDND15
12:40NDND15
12:50NDND16
13:00NDND16
13:10NDND16
13:20NDND17
13:30NDND19
13:40NDND20
13:50NDND19
14:00NDND19
14:10NDND18
14:20NDND16
14:30NDND16
14:40NDND17
14:50NDND16
15:00NDND16
15:10NDND17
15:20NDND16
15:30NDND16
15:40NDND17
15:50NDND18
16:00NDND18
16:10NDND18
16:20NDND18
16:30NDND18
16:40NDND18
16:50NDND16
17:00NDND17
17:10NDND16
17:20NDND16
17:30NDND14
17:40NDND14
17:50NDND15
18:00NDND14
18:10NDND15
18:20NDND17
18:30NDND19
18:40NDND18
18:50NDND20
19:00NDND21
19:10NDND21
19:20NDND21
19:30NDND20
19:40NDND20
19:50NDND18
20:00NDND17
20:10NDND16
20:20NDND15
20:30NDND16
20:40NDND18
20:50NDND21
21:00NDND20
21:10NDND20
21:20NDND21
21:30NDND18
21:40NDND17
21:50NDND13
22:00NDND14
22:10NDND16
22:20NDND15
22:30NDND19
22:40NDND19
22:50NDND19
23:00NDND20
23:10NDND18
23:20NDND18
23:30NDND16
23:40NDND15
23:50NDND15