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

○Information

○Measurement value list : 2025/10/14(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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