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

○Information

○Measurement value list : 2025/11/16(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND16
00:10NDND17
00:20NDND16
00:30NDND17
00:40NDND19
00:50NDND18
01:00NDND17
01:10NDND13
01:20NDND14
01:30NDND9.2
01:40NDND10
01:50NDND13
02:00NDND14
02:10NDND15
02:20NDND14
02:30NDND15
02:40NDND14
02:50NDND12
03:00NDND11
03:10NDND12
03:20NDND14
03:30NDND15
03:40NDND13
03:50NDND13
04:00NDND12
04:10NDND10
04:20NDNDND
04:30NDNDND
04:40NDNDND
04:50NDND9.6
05:00NDND10
05:10NDND13
05:20NDND18
05:30NDND18
05:40NDND18
05:50NDND16
06:00NDND19
06:10NDND18
06:20NDND13
06:30NDND14
06:40NDND15
06:50NDND13
07:00NDND10
07:10NDND8.6
07:20NDNDND
07:30NDNDND
07:40NDNDND
07:50NDNDND
08:00NDNDND
08:10NDNDND
08:20NDND8.8
08:30NDND9.5
08:40NDND11
08:50NDND13
09:00NDND13
09:10NDND14
09:20NDND17
09:30NDND17
09:40NDND18
09:50NDND15
10:00NDND14
10:10NDND11
10:20NDND9.9
10:30NDND10
10:40NDNDND
10:50NDND8.9
11:00NDND8.6
11:10NDND10
11:20NDND11
11:30NDND11
11:40NDND12
11:50NDND12
12:00NDND14
12:10NDND14
12:20NDND13
12:30NDND12
12:40NDND12
12:50NDND14
13:00NDND13
13:10NDND15
13:20NDND14
13:30NDND15
13:40NDND15
13:50NDND14
14:00NDND15
14:10NDND13
14:20NDND13
14:30NDND11
14:40NDND12
14:50NDND15
15:00NDND14
15:10NDND15
15:20NDND16
15:30NDND17
15:40NDND19
15:50NDND13
16:00NDND13
16:10NDND11
16:20NDND11
16:30NDND9.5
16:40NDND8.8
16:50NDND10
17:00NDND12
17:10NDND14
17:20NDND13
17:30NDND13
17:40NDND12
17:50NDND11
18:00NDND12
18:10NDND11
18:20NDND14
18:30NDND16
18:40NDND16
18:50NDND16
19:00NDND14
19:10NDND13
19:20NDNDND
19:30NDNDND
19:40NDNDND
19:50NDNDND
20:00NDND9.2
20:10NDND12
20:20NDND15
20:30NDND12
20:40NDND13
20:50NDND13
21:00NDND13
21:10NDND12
21:20NDND14
21:30NDND18
21:40NDND18
21:50NDND17
22:00NDND17
22:10NDND18
22:20NDND14
22:30NDND10
22:40NDND11
22:50NDND13
23:00NDND12
23:10NDND11
23:20NDND12
23:30NDND13
23:40NDND13
23:50NDND11