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

○Information

○Measurement value list ： 2026/03/30(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
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13:50NDND17
14:00NDND16
14:10NDND16
14:20NDND16
14:30NDND17
14:40NDND19
14:50NDND19
15:00NDND19
15:10NDND17
15:20NDND16
15:30NDND17
15:40NDND15
15:50NDND13
16:00NDND15
16:10NDND17
16:20NDND19
16:30NDND17
16:40NDND20
16:50NDND20
17:00NDND20
17:10NDND21
17:20NDND20
17:30NDND19
17:40NDND19
17:50NDND20
18:00NDND17
18:10NDND15
18:20NDND13
18:30NDND14
18:40NDND13
18:50NDND13
19:00NDND15
19:10NDND17
19:20NDND17
19:30NDND18
19:40NDND19
19:50NDND18
20:00NDND18
20:10NDND17
20:20NDND18
20:30NDND16
20:40NDND14
20:50NDND15
21:00NDND16
21:10NDND16
21:20NDND18
21:30NDND18
21:40NDND19
21:50NDND18
22:00NDND19
22:10NDND17
22:20NDND16
22:30NDND16
22:40NDND16
22:50NDND15
23:00NDND13
23:10NDND13
23:20NDND15
23:30NDND16
23:40NDND16
23:50NDND19