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

○Information

○Measurement value list ： 2026/01/11(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND28
00:10NDND26
00:20NDND25
00:30NDND25
00:40NDND26
00:50NDND24
01:00NDND24
01:10NDND24
01:20NDND24
01:30NDND26
01:40NDND25
01:50NDND28
02:00NDND25
02:10NDND25
02:20NDND24
02:30NDND22
02:40NDND23
02:50NDND22
03:00NDND22
03:10NDND22
03:20NDND23
03:30NDND23
03:40NDND22
03:50NDND19
04:00NDND20
04:10NDND22
04:20NDND21
04:30NDND22
04:40NDND21
04:50NDND22
05:00NDND22
05:10NDND21
05:20NDND23
05:30NDND20
05:40NDND22
05:50NDND25
06:00NDND23
06:10NDND22
06:20NDND23
06:30NDND23
06:40NDND22
06:50NDND21
07:00NDND22
07:10NDND21
07:20NDND21
07:30NDND26
07:40NDND28
07:50NDND28
08:00NDND29
08:10NDND30
08:20NDND28
08:30NDND26
08:40NDND25
08:50NDND25
09:00NDND25
09:10NDND23
09:20NDND25
09:30NDND26
09:40NDND28
09:50NDND24
10:00NDND26
10:10NDND28
10:20NDND26
10:30NDND25
10:40NDND22
10:50NDND25
11:00NDND23
11:10NDND22
11:20NDND20
11:30NDND20
11:40NDND21
11:50NDND21
12:00NDND22
12:10NDND23
12:20NDND24
12:30NDND25
12:40NDND25
12:50NDND26
13:00NDND28
13:10NDND29
13:20NDND29
13:30NDND28
13:40NDND27
13:50NDND28
14:00NDND24
14:10NDND23
14:20NDND24
14:30NDND23
14:40NDND23
14:50NDND18
15:00NDND18
15:10NDND18
15:20NDND20
15:30NDND22
15:40NDND22
15:50NDND26
16:00NDND28
16:10NDND28
16:20NDND29
16:30NDND28
16:40NDND28
16:50NDND28
17:00NDND25
17:10NDND26
17:20NDND26
17:30NDND26
17:40NDND28
17:50NDND26
18:00NDND26
18:10NDND27
18:20NDND24
18:30NDND22
18:40NDND22
18:50NDND22
19:00NDND24
19:10NDND24
19:20NDND25
19:30NDND26
19:40NDND25
19:50NDND25
20:00NDND23
20:10NDND23
20:20NDND22
20:30NDND20
20:40NDND20
20:50NDND19
21:00NDND18
21:10NDND18
21:20NDND21
21:30NDND20
21:40NDND22
21:50NDND21
22:00NDND19
22:10NDND20
22:20NDND19
22:30NDND21
22:40NDND21
22:50NDND23
23:00NDND24
23:10NDND22
23:20NDND22
23:30NDND25
23:40NDND23
23:50NDND22