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

○Information

○Measurement value list ： 2026/02/14(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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