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

○Information

○Measurement value list ： 2026/01/31(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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