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

○Information

○Measurement value list ： 2025/10/13(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND13
00:10NDND12
00:20NDND10
00:30NDND9.7
00:40NDND11
00:50NDNDND
01:00NDND10
01:10NDND9.3
01:20NDND11
01:30NDND9.7
01:40NDNDND
01:50NDND10
02:00NDND9.7
02:10NDND10
02:20NDND12
02:30NDND12
02:40NDND16
02:50NDND16
03:00NDND17
03:10NDND19
03:20NDND18
03:30NDND20
03:40NDND19
03:50NDND16
04:00NDND16
04:10NDND14
04:20NDND14
04:30NDND13
04:40NDND14
04:50NDND14
05:00NDND12
05:10NDND14
05:20NDND14
05:30NDND14
05:40NDND14
05:50NDND16
06:00NDND15
06:10NDND12
06:20NDND13
06:30NDND11
06:40NDND9.7
06:50NDND10
07:00NDND11
07:10NDND12
07:20NDND12
07:30NDND14
07:40NDND16
07:50NDND17
08:00NDND18
08:10NDND19
08:20NDND20
08:30NDND19
08:40NDND15
08:50NDND12
09:00NDND12
09:10NDND12
09:20NDND11
09:30NDND10
09:40NDND14
09:50NDND16
10:00NDND16
10:10NDND17
10:20NDND17
10:30NDND19
10:40NDND17
10:50NDND16
11:00NDND15
11:10NDND16
11:20NDND15
11:30NDND13
11:40NDND15
11:50NDND15
12:00NDND13
12:10NDND10
12:20NDND13
12:30NDND14
12:40NDND14
12:50NDND16
13:00NDND17
13:10NDND19
13:20NDND17
13:30NDND14
13:40NDND14
13:50NDND14
14:00NDND14
14:10NDND14
14:20NDND15
14:30NDND18
14:40NDND18
14:50NDND17
15:00NDND17
15:10NDND15
15:20NDND14
15:30NDND14
15:40NDND13
15:50NDND14
16:00NDND14
16:10NDND13
16:20NDND14
16:30NDND14
16:40NDND14
16:50NDND14
17:00NDND15
17:10NDND15
17:20NDND13
17:30NDND12
17:40NDND13
17:50NDND11
18:00NDND10
18:10NDND12
18:20NDND15
18:30NDND16
18:40NDND14
18:50NDND17
19:00NDND18
19:10NDND18
19:20NDND17
19:30NDND18
19:40NDND18
19:50NDND20
20:00NDND17
20:10NDND17
20:20NDND16
20:30NDND14
20:40NDND15
20:50NDND11
21:00NDND12
21:10NDND9.7
21:20NDND9.5
21:30NDND11
21:40NDND12
21:50NDND14
22:00NDND15
22:10NDND16
22:20NDND15
22:30NDND12
22:40NDND9.7
22:50NDND8.4
23:00NDNDND
23:10NDNDND
23:20NDND9.5
23:30NDND9.9
23:40NDND10
23:50NDND9.0