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

○Information

○Measurement value list ： 2026/01/25(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND19
00:10NDND16
00:20NDND18
00:30NDND16
00:40NDND16
00:50NDND17
01:00NDND18
01:10NDND22
01:20NDND19
01:30NDND22
01:40NDND21
01:50NDND22
02:00NDND23
02:10NDND21
02:20NDND22
02:30NDND21
02:40NDND20
02:50NDND18
03:00NDND17
03:10NDND17
03:20NDND16
03:30NDND17
03:40NDND18
03:50NDND20
04:00NDND19
04:10NDND20
04:20NDND20
04:30NDND20
04:40NDND19
04:50NDND19
05:00NDND20
05:10NDND21
05:20NDND21
05:30NDND20
05:40NDND20
05:50NDND19
06:00NDND19
06:10NDND19
06:20NDND20
06:30NDND22
06:40NDND23
06:50NDND24
07:00NDND26
07:10NDND24
07:20NDND27
07:30NDND26
07:40NDND26
07:50NDND26
08:00NDND23
08:10NDND24
08:20NDND19
08:30NDND20
08:40NDND19
08:50NDND18
09:00NDND18
09:10NDND17
09:20NDND20
09:30NDND19
09:40NDND20
09:50NDND17
10:00NDND19
10:10NDND21
10:20NDND19
10:30NDND20
10:40NDND21
10:50NDND24
11:00NDND24
11:10NDND21
11:20NDND22
11:30NDND21
11:40NDND20
11:50NDND21
12:00NDND22
12:10NDND23
12:20NDND23
12:30NDND25
12:40NDND24
12:50NDND20
13:00NDND20
13:10NDND18
13:20NDND17
13:30NDND16
13:40NDND17
13:50NDND18
14:00NDND21
14:10NDND20
14:20NDND20
14:30NDND18
14:40NDND19
14:50NDND20
15:00NDND18
15:10NDND19
15:20NDND18
15:30NDND18
15:40NDND17
15:50NDND16
16:00NDND18
16:10NDND20
16:20NDND20
16:30NDND19
16:40NDND18
16:50NDND18
17:00NDND16
17:10NDND14
17:20NDND15
17:30NDND19
17:40NDND20
17:50NDND21
18:00NDND23
18:10NDND24
18:20NDND24
18:30NDND22
18:40NDND20
18:50NDND20
19:00NDND19
19:10NDND16
19:20NDND18
19:30NDND18
19:40NDND21
19:50NDND19
20:00NDND21
20:10NDND24
20:20NDND24
20:30NDND22
20:40NDND20
20:50NDND21
21:00NDND20
21:10NDND15
21:20NDND14
21:30NDND15
21:40NDND17
21:50NDND18
22:00NDND18
22:10NDND20
22:20NDND19
22:30NDND20
22:40NDND18
22:50NDND18
23:00NDND20
23:10NDND20
23:20NDND19
23:30NDND18
23:40NDND20
23:50NDND20