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

○Information

○Measurement value list ： 2026/11/04(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND20
00:10NDND17
00:20NDND16
00:30NDND17
00:40NDND17
00:50NDND17
01:00NDND18
01:10NDND19
01:20NDND18
01:30NDND16
01:40NDND15
01:50NDND14
02:00NDND12
02:10NDND12
02:20NDND13
02:30NDND14
02:40NDND14
02:50NDND16
03:00NDND15
03:10NDND17
03:20NDND18
03:30NDND17
03:40NDND16
03:50NDND15
04:00NDND18
04:10NDND19
04:20NDND16
04:30NDND17
04:40NDND18
04:50NDND18
05:00NDND17
05:10NDND17
05:20NDND17
05:30NDND16
05:40NDND16
05:50NDND17
06:00NDND17
06:10NDND16
06:20NDND15
06:30NDND14
06:40NDND13
06:50NDND12
07:00NDND9.7
07:10NDND11
07:20NDND13
07:30NDND16
07:40NDND17
07:50NDND16
08:00NDND16
08:10NDND14
08:20NDND14
08:30NDND11
08:40NDND12
08:50NDND12
09:00NDND13
09:10NDND14
09:20NDND13
09:30NDND15
09:40NDND14
09:50NDND15
10:00NDND17
10:10NDND17
10:20NDND16
10:30NDND18
10:40NDND18
10:50NDND18
11:00NDND16
11:10NDND16
11:20NDND16
11:30NDND17
11:40NDND16
11:50NDND14
12:00NDND19
12:10NDND20
12:20NDND20
12:30NDND19
12:40NDND17
12:50NDND19
13:00NDND14
13:10NDND15
13:20NDND12
13:30NDND13
13:40NDND14
13:50NDND16
14:00NDND15
14:10NDND14
14:20NDND16
14:30NDND14
14:40NDND14
14:50NDND13
15:00NDND13
15:10NDND13
15:20NDND13
15:30NDND14
15:40NDND13
15:50NDND10
16:00NDND11
16:10NDND8.5
16:20NDND10
16:30NDND11
16:40NDND12
16:50NDND14
17:00NDND15
17:10NDND17
17:20NDND17
17:30NDND17
17:40NDND19
17:50NDND21
18:00NDND18
18:10NDND19
18:20NDND17
18:30NDND18
18:40NDND14
18:50NDND13
19:00NDND14
19:10NDND12
19:20NDND13
19:30NDND12
19:40NDND14
19:50NDND14
20:00NDND13
20:10NDND16
20:20NDND16
20:30NDND18
20:40NDND18
20:50NDND19
21:00NDND21
21:10NDND19
21:20NDND20
21:30NDND18
21:40NDND18
21:50NDND20
22:00NDND16
22:10NDND18
22:20NDND17
22:30NDND17
22:40NDND18
22:50NDND15
23:00NDND17
23:10NDND16
23:20NDND15
23:30NDND14
23:40NDND15
23:50NDND16