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

○Information

○Measurement value list ： 2026/07/03(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND14
00:10NDND14
00:20NDND12
00:30NDND14
00:40NDND12
00:50NDND12
01:00NDND13
01:10NDND12
01:20NDND14
01:30NDND14
01:40NDND14
01:50NDND18
02:00NDND16
02:10NDND17
02:20NDND19
02:30NDND20
02:40NDND23
02:50NDND17
03:00NDND18
03:10NDND21
03:20NDND19
03:30NDND20
03:40NDND18
03:50NDND19
04:00NDND19
04:10NDND14
04:20NDND16
04:30NDND13
04:40NDND14
04:50NDND15
05:00NDND14
05:10NDND13
05:20NDND12
05:30NDND12
05:40NDND10
05:50NDND11
06:00NDND13
06:10NDND15
06:20NDND14
06:30NDND16
06:40NDND16
06:50NDND12
07:00NDND12
07:10NDND11
07:20NDND11
07:30NDND9.6
07:40NDNDND
07:50NDND9.7
08:00NDND11
08:10NDND11
08:20NDND13
08:30NDND15
08:40NDND16
08:50NDND16
09:00NDND14
09:10NDND13
09:20NDND9.6
09:30NDND10
09:40NDND10
09:50NDND12
10:00NDND14
10:10NDND15
10:20NDND17
10:30NDND16
10:40NDND17
10:50NDND16
11:00NDND15
11:10NDND15
11:20NDND14
11:30NDND16
11:40NDND17
11:50NDND14
12:00NDND12
12:10NDND14
12:20NDND14
12:30NDND12
12:40NDND9.9
12:50NDND12
13:00NDND15
13:10NDND13
13:20NDND12
13:30NDND14
13:40NDND16
13:50NDND16
14:00NDND15
14:10NDND15
14:20NDND16
14:30NDND13
14:40NDND12
14:50NDND12
15:00NDND13
15:10NDND14
15:20NDND16
15:30NDND16
15:40NDND18
15:50NDND17
16:00NDND16
16:10NDND13
16:20NDND12
16:30NDND13
16:40NDND13
16:50NDND13
17:00NDND12
17:10NDND14
17:20NDND14
17:30NDND13
17:40NDND13
17:50NDND16
18:00NDND16
18:10NDND15
18:20NDND16
18:30NDND17
18:40NDND15
18:50NDND13
19:00NDND15
19:10NDND16
19:20NDND17
19:30NDND16
19:40NDND18
19:50NDND17
20:00NDND17
20:10NDND16
20:20NDND16
20:30NDND15
20:40NDND16
20:50NDND17
21:00NDND16
21:10NDND16
21:20NDND14
21:30NDND17
21:40NDND16
21:50NDND16
22:00NDND14
22:10NDND14
22:20NDND16
22:30NDND17
22:40NDND16
22:50NDND14
23:00NDND15
23:10NDND15
23:20NDND15
23:30NDND11
23:40NDND11
23:50NDND13