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

○Information

○Measurement value list ： 2026/06/03(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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