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

○Information

○Measurement value list ： 2025/11/07(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND17
00:10NDND18
00:20NDND16
00:30NDND16
00:40NDND16
00:50NDND13
01:00NDND12
01:10NDND13
01:20NDND14
01:30NDND12
01:40NDND14
01:50NDND12
02:00NDND13
02:10NDND13
02:20NDND13
02:30NDND13
02:40NDND13
02:50NDND16
03:00NDND12
03:10NDND13
03:20NDND12
03:30NDND13
03:40NDND15
03:50NDND15
04:00NDND16
04:10NDND17
04:20NDND15
04:30NDND16
04:40NDND10
04:50NDND11
05:00NDND15
05:10NDND12
05:20NDND16
05:30NDND13
05:40NDND17
05:50NDND15
06:00NDND13
06:10NDND14
06:20NDND11
06:30NDND12
06:40NDND14
06:50NDND12
07:00NDND10
07:10NDND11
07:20NDND13
07:30NDND12
07:40NDND9.6
07:50NDND12
08:00NDND15
08:10NDND14
08:20NDND12
08:30NDND16
08:40NDND18
08:50NDND17
09:00NDND15
09:10NDND15
09:20NDND16
09:30NDND13
09:40NDND11
09:50NDND12
10:00NDND13
10:10NDND15
10:20NDND13
10:30NDND14
10:40NDND14
10:50NDND13
11:00NDND12
11:10NDND11
11:20NDND12
11:30NDND13
11:40NDND16
11:50NDND16
12:00NDND15
12:10NDND16
12:20NDND19
12:30NDND19
12:40NDND19
12:50NDND18
13:00NDND19
13:10NDND17
13:20NDND18
13:30NDND15
13:40NDND12
13:50NDND12
14:00NDND12
14:10NDND12
14:20NDND10
14:30NDND9.9
14:40NDND12
14:50NDND12
15:00NDND13
15:10NDND14
15:20NDND13
15:30NDND16
15:40NDND15
15:50NDND17
16:00NDND19
16:10NDND18
16:20NDND20
16:30NDND17
16:40NDND18
16:50NDND17
17:00NDND15
17:10NDND14
17:20NDND12
17:30NDND14
17:40NDND13
17:50NDND12
18:00NDND14
18:10NDND14
18:20NDND16
18:30NDND16
18:40NDND17
18:50NDND14
19:00NDND10
19:10NDND11
19:20NDND12
19:30NDND12
19:40NDND12
19:50NDND14
20:00NDND15
20:10NDND14
20:20NDND12
20:30NDND13
20:40NDND10
20:50NDND10
21:00NDND11
21:10NDND13
21:20NDND13
21:30NDND12
21:40NDND12
21:50NDND15
22:00NDND16
22:10NDND15
22:20NDND16
22:30NDND16
22:40NDND15
22:50NDND12
23:00NDND10
23:10NDND10
23:20NDND10
23:30NDND8.5
23:40NDND8.9
23:50NDND9.6