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

○Information

○Measurement value list ： 2025/10/26(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND13
00:10NDND10
00:20NDND10
00:30NDND13
00:40NDND13
00:50NDND14
01:00NDND15
01:10NDND15
01:20NDND15
01:30NDND13
01:40NDND11
01:50NDND11
02:00NDND9.6
02:10NDND9.2
02:20NDND12
02:30NDND11
02:40NDND14
02:50NDND12
03:00NDND13
03:10NDND13
03:20NDND10
03:30NDND9.9
03:40NDNDND
03:50NDNDND
04:00NDNDND
04:10NDNDND
04:20NDND11
04:30NDND10
04:40NDND9.6
04:50NDND12
05:00NDND15
05:10NDND13
05:20NDND9.2
05:30NDND15
05:40NDND18
05:50NDND17
06:00NDND15
06:10NDND16
06:20NDND18
06:30NDND15
06:40NDND15
06:50NDND13
07:00NDND14
07:10NDND15
07:20NDND16
07:30NDND13
07:40NDND13
07:50NDND14
08:00NDND15
08:10NDND13
08:20NDND13
08:30NDND17
08:40NDND18
08:50NDND21
09:00NDND22
09:10NDND23
09:20NDND22
09:30NDND20
09:40NDND18
09:50NDND16
10:00NDND15
10:10NDND14
10:20NDND14
10:30NDND14
10:40NDND16
10:50NDND16
11:00NDND14
11:10NDND15
11:20NDND14
11:30NDND13
11:40NDND10
11:50NDND12
12:00NDND13
12:10NDND12
12:20NDND14
12:30NDND14
12:40NDND15
12:50NDND15
13:00NDND16
13:10NDND15
13:20NDND13
13:30NDND15
13:40NDND16
13:50NDND15
14:00NDND13
14:10NDND15
14:20NDND17
14:30NDND16
14:40NDND17
14:50NDND16
15:00NDND17
15:10NDND14
15:20NDND15
15:30NDND15
15:40NDND16
15:50NDND16
16:00NDND16
16:10NDND17
16:20NDND18
16:30NDND18
16:40NDND16
16:50NDND17
17:00NDND19
17:10NDND21
17:20NDND20
17:30NDND17
17:40NDND17
17:50NDND19
18:00NDND18
18:10NDND16
18:20NDND14
18:30NDND15
18:40NDND16
18:50NDND16
19:00NDND14
19:10NDND14
19:20NDND14
19:30NDND14
19:40NDND12
19:50NDND10
20:00NDND12
20:10NDND12
20:20NDND11
20:30NDND14
20:40NDND15
20:50NDND14
21:00NDND13
21:10NDND13
21:20NDND14
21:30NDND12
21:40NDND11
21:50NDND13
22:00NDND15
22:10NDND17
22:20NDND18
22:30NDND16
22:40NDND16
22:50NDND14
23:00NDND14
23:10NDND12
23:20NDND11
23:30NDND12
23:40NDND13
23:50NDND12