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

○Information

○Measurement value list ： 2026/01/06(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND25
00:10NDND25
00:20NDND22
00:30NDND24
00:40NDND21
00:50NDND19
01:00NDND18
01:10NDND18
01:20NDND21
01:30NDND20
01:40NDND23
01:50NDND24
02:00NDND26
02:10NDND25
02:20NDND26
02:30NDND24
02:40NDND20
02:50NDND21
03:00NDND20
03:10NDND22
03:20NDND20
03:30NDND21
03:40NDND24
03:50NDND24
04:00NDND23
04:10NDND20
04:20NDND21
04:30NDND20
04:40NDND17
04:50NDND13
05:00NDND10
05:10NDND13
05:20NDND15
05:30NDND18
05:40NDND19
05:50NDND24
06:00NDND28
06:10NDND27
06:20NDND30
06:30NDND27
06:40NDND29
06:50NDND27
07:00NDND26
07:10NDND22
07:20NDND18
07:30NDND20
07:40NDND20
07:50NDND18
08:00NDND17
08:10NDND20
08:20NDND23
08:30NDND21
08:40NDND22
08:50NDND20
09:00NDND22
09:10NDND21
09:20NDND19
09:30NDND23
09:40NDND22
09:50NDND27
10:00NDND26
10:10NDND26
10:20NDND27
10:30NDND27
10:40NDND27
10:50NDND24
11:00NDND24
11:10NDND24
11:20NDND23
11:30NDND22
11:40NDND22
11:50NDND22
12:00NDND19
12:10NDND18
12:20NDND19
12:30NDND17
12:40NDND16
12:50NDND17
13:00NDND20
13:10NDND23
13:20NDND22
13:30NDND21
13:40NDND23
13:50NDND21
14:00NDND20
14:10NDND19
14:20NDND19
14:30NDND18
14:40NDND19
14:50NDND20
15:00NDND20
15:10NDND19
15:20NDND19
15:30NDND19
15:40NDND18
15:50NDND19
16:00NDND20
16:10NDND19
16:20NDND20
16:30NDND20
16:40NDND21
16:50NDND22
17:00NDND22
17:10NDND24
17:20NDND23
17:30NDND23
17:40NDND22
17:50NDND20
18:00NDND20
18:10NDND20
18:20NDND21
18:30NDND22
18:40NDND23
18:50NDND26
19:00NDND25
19:10NDND26
19:20NDND24
19:30NDND21
19:40NDND21
19:50NDND21
20:00NDND21
20:10NDND18
20:20NDND21
20:30NDND23
20:40NDND24
20:50NDND24
21:00NDND25
21:10NDND27
21:20NDND25
21:30NDND26
21:40NDND24
21:50NDND24
22:00NDND20
22:10NDND20
22:20NDND21
22:30NDND20
22:40NDND21
22:50NDND18
23:00NDND20
23:10NDND20
23:20NDND18
23:30NDND17
23:40NDND18
23:50NDND18