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

○Information

○Measurement value list ： 2026/10/29(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND18
00:10NDND14
00:20NDND15
00:30NDND18
00:40NDND18
00:50NDND19
01:00NDND18
01:10NDND21
01:20NDND20
01:30NDND20
01:40NDND19
01:50NDND19
02:00NDND19
02:10NDND18
02:20NDND21
02:30NDND21
02:40NDND21
02:50NDND21
03:00NDND22
03:10NDND22
03:20NDND18
03:30NDND17
03:40NDND18
03:50NDND18
04:00NDND16
04:10NDND14
04:20NDND14
04:30NDND14
04:40NDND13
04:50NDND12
05:00NDND15
05:10NDND15
05:20NDND18
05:30NDND19
05:40NDND19
05:50NDND20
06:00NDND20
06:10NDND18
06:20NDND19
06:30NDND16
06:40NDND18
06:50NDND17
07:00NDND15
07:10NDND17
07:20NDND16
07:30NDND18
07:40NDND16
07:50NDND17
08:00NDND14
08:10NDND17
08:20NDND17
08:30NDND16
08:40NDND17
08:50NDND16
09:00NDND21
09:10NDND20
09:20NDND17
09:30NDND20
09:40NDND20
09:50NDND19
10:00NDND19
10:10NDND17
10:20NDND18
10:30NDND17
10:40NDND16
10:50NDND16
11:00NDND13
11:10NDND15
11:20NDND16
11:30NDND14
11:40NDND16
11:50NDND16
12:00NDND18
12:10NDND17
12:20NDND16
12:30NDND19
12:40NDND19
12:50NDND20
13:00NDND21
13:10NDND21
13:20NDND23
13:30NDND21
13:40NDND20
13:50NDND20
14:00NDND19
14:10NDND19
14:20NDND17
14:30NDND16
14:40NDND17
14:50NDND17
15:00NDND16
15:10NDND17
15:20NDND19
15:30NDND21
15:40NDND22
15:50NDND21
16:00NDND26
16:10NDND24
16:20NDND25
16:30NDND24
16:40NDND24
16:50NDND26
17:00NDND21
17:10NDND21
17:20NDND18
17:30NDND17
17:40NDND14
17:50NDND8.6
18:00NDND11
18:10NDND11
18:20NDND11
18:30NDND13
18:40NDND16
18:50NDND20
19:00NDND18
19:10NDND20
19:20NDND20
19:30NDND19
19:40NDND16
19:50NDND18
20:00NDND15
20:10NDND15
20:20NDND14
20:30NDND14
20:40NDND17
20:50NDND14
21:00NDND16
21:10NDND17
21:20NDND19
21:30NDND19
21:40NDND16
21:50NDND17
22:00NDND17
22:10NDND16
22:20NDND16
22:30NDND16
22:40NDND16
22:50NDND17
23:00NDND18
23:10NDND19
23:20NDND17
23:30NDND18
23:40NDND19
23:50NDND17