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

○Information

○Measurement value list ： 2026/11/07(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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