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

○Information

○Measurement value list ： 2026/01/26(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND20
00:10NDND19
00:20NDND22
00:30NDND20
00:40NDND21
00:50NDND20
01:00NDND19
01:10NDND19
01:20NDND18
01:30NDND19
01:40NDND20
01:50NDND18
02:00NDND19
02:10NDND19
02:20NDND21
02:30NDND23
02:40NDND21
02:50NDND20
03:00NDND18
03:10NDND16
03:20NDND16
03:30NDND14
03:40NDND16
03:50NDND21
04:00NDND22
04:10NDND23
04:20NDND22
04:30NDND20
04:40NDND20
04:50NDND19
05:00NDND19
05:10NDND18
05:20NDND18
05:30NDND21
05:40NDND17
05:50NDND16
06:00NDND16
06:10NDND17
06:20NDND16
06:30NDND15
06:40NDND16
06:50NDND17
07:00NDND18
07:10NDND17
07:20NDND17
07:30NDND16
07:40NDND17
07:50NDND15
08:00NDND15
08:10NDND16
08:20NDND16
08:30NDND18
08:40NDND16
08:50NDND17
09:00NDND13
09:10NDND12
09:20NDND12
09:30NDND14
09:40NDND15
09:50NDND16
10:00NDND17
10:10NDND19
10:20NDND18
10:30NDND16
10:40NDND15
10:50NDND12
11:00NDND12
11:10NDND9.0
11:20NDND9.3
11:30NDND10
11:40NDND12
11:50NDND14
12:00NDND14
12:10NDND18
12:20NDND22
12:30NDND23
12:40NDND21
12:50NDND21
13:00NDND23
13:10NDND22
13:20NDND22
13:30NDND21
13:40NDND22
13:50NDND23
14:00NDND21
14:10NDND21
14:20NDND20
14:30NDND18
14:40NDND19
14:50NDND20
15:00NDND21
15:10NDND21
15:20NDND17
15:30NDND18
15:40NDND17
15:50NDND15
16:00NDND15
16:10NDND17
16:20NDND18
16:30NDND19
16:40NDND19
16:50NDND17
17:00NDND15
17:10NDND11
17:20NDND13
17:30NDND12
17:40NDND11
17:50NDND14
18:00NDND14
18:10NDND13
18:20NDND14
18:30NDND16
18:40NDND17
18:50NDND16
19:00NDND17
19:10NDND22
19:20NDND18
19:30NDND17
19:40NDND18
19:50NDND20
20:00NDND18
20:10NDND16
20:20NDND19
20:30NDND20
20:40NDND18
20:50NDND19
21:00NDND22
21:10NDND23
21:20NDND22
21:30NDND20
21:40NDND21
21:50NDND22
22:00NDND19
22:10NDND19
22:20NDND18
22:30NDND17
22:40NDND16
22:50NDND15
23:00NDND16
23:10NDND17
23:20NDND17
23:30NDND21
23:40NDND22
23:50NDND21