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

○Information

○Measurement value list ： 2026/10/06(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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