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

○Information

○Measurement value list ： 2026/06/24(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND18
00:10NDND17
00:20NDND17
00:30NDND17
00:40NDND19
00:50NDND19
01:00NDND18
01:10NDND17
01:20NDND16
01:30NDND15
01:40NDND11
01:50NDND10
02:00NDND11
02:10NDND12
02:20NDND14
02:30NDND13
02:40NDND15
02:50NDND16
03:00NDND15
03:10NDND14
03:20NDND18
03:30NDND19
03:40NDND20
03:50NDND20
04:00NDND23
04:10NDND22
04:20NDND18
04:30NDND19
04:40NDND18
04:50NDND16
05:00NDND12
05:10NDND14
05:20NDND16
05:30NDND15
05:40NDND15
05:50NDND14
06:00NDND14
06:10NDND12
06:20NDND13
06:30NDND15
06:40NDND18
06:50NDND20
07:00NDND23
07:10NDND23
07:20NDND21
07:30NDND21
07:40NDND18
07:50NDND16
08:00NDND14
08:10NDND13
08:20NDND14
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