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

○Information

○Measurement value list ： 2025/10/27(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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