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

○Information

○Measurement value list ： 2026/01/28(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND18
00:10NDND21
00:20NDND22
00:30NDND21
00:40NDND20
00:50NDND17
01:00NDND19
01:10NDND17
01:20NDND17
01:30NDND19
01:40NDND20
01:50NDND21
02:00NDND18
02:10NDND17
02:20NDND18
02:30NDND17
02:40NDND17
02:50NDND21
03:00NDND23
03:10NDND26
03:20NDND23
03:30NDND25
03:40NDND26
03:50NDND22
04:00NDND22
04:10NDND20
04:20NDND19
04:30NDND18
04:40NDND16
04:50NDND17
05:00NDND15
05:10NDND17
05:20NDND19
05:30NDND17
05:40NDND20
05:50NDND20
06:00NDND21
06:10NDND23
06:20NDND22
06:30NDND23
06:40NDND22
06:50NDND24
07:00NDND24
07:10NDND21
07:20NDND19
07:30NDND19
07:40NDND18
07:50NDND18
08:00NDND17
08:10NDND18
08:20NDND20
08:30NDND21
08:40NDND20
08:50NDND18
09:00NDND19
09:10NDND20
09:20NDND19
09:30NDND21
09:40NDND23
09:50NDND22
10:00NDND20
10:10NDND18
10:20NDND20
10:30NDND20
10:40NDND17
10:50NDND17
11:00NDND19
11:10NDND20
11:20NDND17
11:30NDND17
11:40NDND18
11:50NDND22
12:00NDND23
12:10NDND22
12:20NDND22
12:30NDND26
12:40NDND28
12:50NDND25
13:00NDND23
13:10NDND25
13:20NDND26
13:30NDND21
13:40NDND21
13:50NDND21
14:00NDND22
14:10NDND22
14:20NDND22
14:30NDND24
14:40NDND21
14:50NDND21
15:00NDND21
15:10NDND20
15:20NDND18
15:30NDND15
15:40NDND15
15:50NDND14
16:00NDND13
16:10NDND16
16:20NDND16
16:30NDND17
16:40NDND19
16:50NDND22
17:00NDND24
17:10NDND21
17:20NDND21
17:30NDND20
17:40NDND21
17:50NDND20
18:00NDND16
18:10NDND17
18:20NDND18
18:30NDND19
18:40NDND18
18:50NDND18
19:00NDND19
19:10NDND19
19:20NDND19
19:30NDND21
19:40NDND22
19:50NDND21
20:00NDND25
20:10NDND24
20:20NDND25
20:30NDND22
20:40NDND20
20:50NDND20
21:00NDND17
21:10NDND16
21:20NDND17
21:30NDND18
21:40NDND20
21:50NDND21
22:00NDND20
22:10NDND20
22:20NDND19
22:30NDND16
22:40NDND19
22:50NDND17
23:00NDND18
23:10NDND18
23:20NDND18
23:30NDND21
23:40NDND17
23:50NDND20