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

○Information

○Measurement value list ： 2026/03/10(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND18
00:10NDND18
00:20NDND18
00:30NDND22
00:40NDND24
00:50NDND26
01:00NDND28
01:10NDND29
01:20NDND27
01:30NDND22
01:40NDND22
01:50NDND18
02:00NDND18
02:10NDND19
02:20NDND22
02:30NDND21
02:40NDND21
02:50NDND21
03:00NDND22
03:10NDND21
03:20NDND22
03:30NDND24
03:40NDND24
03:50NDND23
04:00NDND21
04:10NDND21
04:20NDND22
04:30NDND21
04:40NDND18
04:50NDND22
05:00NDND22
05:10NDND22
05:20NDND21
05:30NDND18
05:40NDND18
05:50NDND16
06:00NDND16
06:10NDND14
06:20NDND16
06:30NDND16
06:40NDND19
06:50NDND18
07:00NDND16
07:10NDND14
07:20NDND15
07:30NDND17
07:40NDND15
07:50NDND18
08:00NDND21
08:10NDND24
08:20NDND23
08:30NDND24
08:40NDND27
08:50NDND24
09:00NDND26
09:10NDND26
09:20NDND25
09:30NDND23
09:40NDND23
09:50NDND21
10:00NDND17
10:10NDND14
10:20NDND15
10:30NDND17
10:40NDND15
10:50NDND18
11:00NDND17
11:10NDND19
11:20NDND19
11:30NDND18
11:40NDND21
11:50NDND20
12:00NDND21
12:10NDND22
12:20NDND20
12:30NDND20
12:40NDND20
12:50NDND20
13:00NDND20
13:10NDND22
13:20NDND25
13:30NDND25
13:40NDND24
13:50NDND25
14:00NDND28
14:10NDND26
14:20NDND24
14:30NDND25
14:40NDND25
14:50NDND25
15:00NDND23
15:10NDND22
15:20NDND20
15:30NDND18
15:40NDND16
15:50NDND15
16:00NDND15
16:10NDND17
16:20NDND20
16:30NDND22
16:40NDND22
16:50NDND23
17:00NDND22
17:10NDND19
17:20NDND18
17:30NDND17
17:40NDND19
17:50NDND18
18:00NDND18
18:10NDND19
18:20NDND18
18:30NDND19
18:40NDND18
18:50NDND18
19:00NDND17
19:10NDND17
19:20NDND15
19:30NDND14
19:40NDND16
19:50NDND20
20:00NDND21
20:10NDND23
20:20NDND26
20:30NDND29
20:40NDND26
20:50NDND24
21:00NDND22
21:10NDND22
21:20NDND22
21:30NDND18
21:40NDND18
21:50NDND14
22:00NDND15
22:10NDND14
22:20NDND13
22:30NDND15
22:40NDND15
22:50NDND20
23:00NDND20
23:10NDND21
23:20NDND22
23:30NDND22
23:40NDND23
23:50NDND22