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

○Information

○Measurement value list ： 2026/08/30(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND14
00:10NDND14
00:20NDND13
00:30NDND12
00:40NDND15
00:50NDND18
01:00NDND17
01:10NDND17
01:20NDND18
01:30NDND19
01:40NDND17
01:50NDND14
02:00NDND15
02:10NDND17
02:20NDND15
02:30NDND16
02:40NDND13
02:50NDND14
03:00NDND15
03:10NDND14
03:20NDND14
03:30NDND14
03:40NDND17
03:50NDND17
04:00NDND15
04:10NDND13
04:20NDND14
04:30NDND11
04:40NDND12
04:50NDND11
05:00NDND14
05:10NDND18
05:20NDND20
05:30NDND21
05:40NDND20
05:50NDND20
06:00NDND17
06:10NDND13
06:20NDND11
06:30NDND12
06:40NDND12
06:50NDND14
07:00NDND15
07:10NDND16
07:20NDND17
07:30NDND16
07:40NDND16
07:50NDND18
08:00NDND16
08:10NDND14
08:20NDND15
08:30NDND16
08:40NDND14
08:50NDND12
09:00NDND13
09:10NDND12
09:20NDND11
09:30NDND11
09:40NDND13
09:50NDND14
10:00NDND14
10:10NDND18
10:20NDND17
10:30NDND16
10:40NDND16
10:50NDND17
11:00NDND16
11:10NDND17
11:20NDND17
11:30NDND18
11:40NDND16
11:50NDND14
12:00NDND14
12:10NDND12
12:20NDND14
12:30NDND10
12:40NDND12
12:50NDND14
13:00NDND16
13:10NDND17
13:20NDND18
13:30NDND22
13:40NDND24
13:50NDND23
14:00NDND21
14:10NDND20
14:20NDND18
14:30NDND17
14:40NDND16
14:50NDND14
15:00NDND16
15:10NDND17
15:20NDND18
15:30NDND18
15:40NDND18
15:50NDND19
16:00NDND19
16:10NDND17
16:20NDND17
16:30NDND18
16:40NDND16
16:50NDND15
17:00NDND14
17:10NDND14
17:20NDND15
17:30NDND15
17:40NDND14
17:50NDND16
18:00NDND18
18:10NDND18
18:20NDND16
18:30NDND15
18:40NDND15
18:50NDND15
19:00NDND13
19:10NDND13
19:20NDND14
19:30NDND13
19:40NDND14
19:50NDND13
20:00NDND15
20:10NDND15
20:20NDND15
20:30NDND18
20:40NDND16
20:50NDND16
21:00NDND16
21:10NDND15
21:20NDND16
21:30NDND14
21:40NDND17
21:50NDND19
22:00NDND18
22:10NDND18
22:20NDND17
22:30NDND17
22:40NDND15
22:50NDND14
23:00NDND14
23:10NDND13
23:20NDND12
23:30NDND11
23:40NDND10
23:50NDND11