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

○Information

○Measurement value list : 2025/11/15(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
00:20NDND11
00:30NDND12
00:40NDND14
00:50NDND14
01:00NDND14
01:10NDND12
01:20NDND12
01:30NDND11
01:40NDND13
01:50NDND11
02:00NDND8.8
02:10NDND9.5
02:20NDND11
02:30NDND13
02:40NDND11
02:50NDND11
03:00NDND14
03:10NDND16
03:20NDND16
03:30NDND13
03:40NDND13
03:50NDND15
04:00NDND13
04:10NDND12
04:20NDND11
04:30NDND14
04:40NDND14
04:50NDND15
05:00NDND14
05:10NDND13
05:20NDND13
05:30NDND13
05:40NDND14
05:50NDND14
06:00NDND16
06:10NDND14
06:20NDND12
06:30NDND12
06:40NDND9.3
06:50NDNDND
07:00NDNDND
07:10NDND8.4
07:20NDND12
07:30NDND12
07:40NDND14
07:50NDND14
08:00NDND14
08:10NDND12
08:20NDND11
08:30NDND11
08:40NDND9.9
08:50NDND11
09:00NDND12
09:10NDND13
09:20NDND12
09:30NDND12
09:40NDND12
09:50NDND10
10:00NDND11
10:10NDND8.6
10:20NDND8.9
10:30NDNDND
10:40NDNDND
10:50NDNDND
11:00NDNDND
11:10NDNDND
11:20NDND10
11:30NDND12
11:40NDND11
11:50NDND12
12:00NDND14
12:10NDND13
12:20NDND12
12:30NDND12
12:40NDND14
12:50NDND13
13:00NDND14
13:10NDND14
13:20NDND13
13:30NDND13
13:40NDND12
13:50NDND12
14:00NDND11
14:10NDND12
14:20NDND10
14:30NDND10
14:40NDND11
14:50NDND10
15:00NDND11
15:10NDND14
15:20NDND15
15:30NDND16
15:40NDND17
15:50NDND18
16:00NDND15
16:10NDND14
16:20NDND15
16:30NDND15
16:40NDND14
16:50NDND15
17:00NDND16
17:10NDND15
17:20NDND14
17:30NDND14
17:40NDND14
17:50NDND12
18:00NDND12
18:10NDND12
18:20NDND12
18:30NDND10
18:40NDND13
18:50NDND11
19:00NDND13
19:10NDND15
19:20NDND16
19:30NDND17
19:40NDND14
19:50NDND16
20:00NDND14
20:10NDND12
20:20NDND10
20:30NDND9.6
20:40NDND12
20:50NDND10
21:00NDND8.4
21:10NDNDND
21:20NDND9.0
21:30NDND9.2
21:40NDND8.6
21:50NDND11
22:00NDND15
22:10NDND14
22:20NDND15
22:30NDND14
22:40NDND14
22:50NDND12
23:00NDND13
23:10NDND14
23:20NDND15
23:30NDND16
23:40NDND16
23:50NDND16