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

○Information

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

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND14
00:10NDND18
00:20NDND19
00:30NDND20
00:40NDND18
00:50NDND19
01:00NDND20
01:10NDND18
01:20NDND19
01:30NDND18
01:40NDND16
01:50NDND15
02:00NDND12
02:10NDND11
02:20NDNDND
02:30NDND10
02:40NDND11
02:50NDND11
03:00NDND12
03:10NDND12
03:20NDND13
03:30NDND12
03:40NDND12
03:50NDND11
04:00NDND10
04:10NDND10
04:20NDND12
04:30NDND11
04:40NDND13
04:50NDND13
05:00NDND14
05:10NDND15
05:20NDND14
05:30NDND15
05:40NDND13
05:50NDND14
06:00NDND14
06:10NDND17
06:20NDND17
06:30NDND14
06:40NDND15
06:50NDND14
07:00NDND10
07:10NDNDND
07:20NDND9.3
07:30NDND12
07:40NDND10
07:50NDND12
08:00NDND16
08:10NDND14
08:20NDND14
08:30NDND14
08:40NDND18
08:50NDND17
09:00NDND18
09:10NDND19
09:20NDND17
09:30NDND15
09:40NDND13
09:50NDND11
10:00NDNDND
10:10NDND9.5
10:20NDND9.0
10:30NDND9.9
10:40NDND9.2
10:50NDND11
11:00NDND14
11:10NDND12
11:20NDND10
11:30NDND11
11:40NDND11
11:50NDNDND
12:00NDNDND
12:10NDNDND
12:20NDND12
12:30NDND13
12:40NDND16
12:50NDND16
13:00NDND16
13:10NDND16
13:20NDND14
13:30NDND15
13:40NDND14
13:50NDND16
14:00NDND15
14:10NDND15
14:20NDND14
14:30NDND12
14:40NDND11
14:50NDND12
15:00NDND12
15:10NDND13
15:20NDND15
15:30NDND14
15:40NDND17
15:50NDND17
16:00NDND16
16:10NDND13
16:20NDND13
16:30NDND13
16:40NDND12
16:50NDND11
17:00NDND14
17:10NDND15
17:20NDND14
17:30NDND14
17:40NDND14
17:50NDND17
18:00NDND15
18:10NDND16
18:20NDND15
18:30NDND16
18:40NDND14
18:50NDND12
19:00NDND11
19:10NDND10
19:20NDND12
19:30NDND10
19:40NDND9.5
19:50NDNDND
20:00NDNDND
20:10NDNDND
20:20NDNDND
20:30NDNDND
20:40NDNDND
20:50NDND11
21:00NDND8.4
21:10NDND8.6
21:20NDND12
21:30NDND10
21:40NDNDND
21:50NDND9.6
22:00NDND13
22:10NDND12
22:20NDND9.9
22:30NDND8.6
22:40NDNDND
22:50NDNDND
23:00NDNDND
23:10NDNDND
23:20NDNDND
23:30NDND9.7
23:40NDND11
23:50NDND12