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

○Information

○Measurement value list ： 2026/08/28(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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