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

○Information

○Measurement value list ： 2026/01/23(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
00:20NDND14
00:30NDND14
00:40NDND13
00:50NDND14
01:00NDND14
01:10NDND15
01:20NDND14
01:30NDND16
01:40NDND18
01:50NDND17
02:00NDND19
02:10NDND18
02:20NDND18
02:30NDND18
02:40NDND18
02:50NDND16
03:00NDND13
03:10NDND12
03:20NDND13
03:30NDND12
03:40NDND13
03:50NDND14
04:00NDND16
04:10NDND19
04:20NDND22
04:30NDND21
04:40NDND21
04:50NDND20
05:00NDND17
05:10NDND18
05:20NDND16
05:30NDND17
05:40NDND16
05:50NDND16
06:00NDND18
06:10NDND16
06:20NDND17
06:30NDND17
06:40NDND18
06:50NDND19
07:00NDND20
07:10NDND19
07:20NDND18
07:30NDND17
07:40NDND16
07:50NDND18
08:00NDND16
08:10NDND16
08:20NDND17
08:30NDND17
08:40NDND17
08:50NDND14
09:00NDND15
09:10NDND18
09:20NDND16
09:30NDND19
09:40NDND21
09:50NDND23
10:00NDND24
10:10NDND22
10:20NDND24
10:30NDND20
10:40NDND16
10:50NDND16
11:00NDND15
11:10NDND15
11:20NDND15
11:30NDND16
11:40NDND19
11:50NDND17
12:00NDND17
12:10NDND18
12:20NDND17
12:30NDND18
12:40NDND17
12:50NDND21
13:00NDND23
13:10NDND21
13:20NDND22
13:30NDND21
13:40NDND22
13:50NDND23
14:00NDND19
14:10NDND22
14:20NDND20
14:30NDND21
14:40NDND20
14:50NDND17
15:00NDND17
15:10NDND16
15:20NDND15
15:30NDND12
15:40NDND13
15:50NDND13
16:00NDND17
16:10NDND14
16:20NDND16
16:30NDND17
16:40NDND16
16:50NDND18
17:00NDND17
17:10NDND20
17:20NDND20
17:30NDND20
17:40NDND23
17:50NDND21
18:00NDND20
18:10NDND19
18:20NDND17
18:30NDND17
18:40NDND12
18:50NDND15
19:00NDND16
19:10NDND17
19:20NDND19
19:30NDND19
19:40NDND20
19:50NDND17
20:00NDND16
20:10NDND18
20:20NDND15
20:30NDND16
20:40NDND15
20:50NDND15
21:00NDND14
21:10NDND12
21:20NDND16
21:30NDND14
21:40NDND15
21:50NDND17
22:00NDND21
22:10NDND20
22:20NDND18
22:30NDND17
22:40NDND18
22:50NDND18
23:00NDND15
23:10NDND15
23:20NDND17
23:30NDND19
23:40NDND18
23:50NDND17