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

○Information

○Measurement value list : 2026/09/14(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND13
00:10NDND14
00:20NDND14
00:30NDND14
00:40NDND15
00:50NDND15
01:00NDND14
01:10NDND14
01:20NDND10
01:30NDND12
01:40NDND12
01:50NDND10
02:00NDND9.0
02:10NDND8.6
02:20NDND11
02:30NDND9.6
02:40NDND10
02:50NDND12
03:00NDND13
03:10NDND16
03:20NDND14
03:30NDND15
03:40NDND14
03:50NDND13
04:00NDND12
04:10NDND12
04:20NDND12
04:30NDND11
04:40NDND12
04:50NDND11
05:00NDND9.7
05:10NDND9.6
05:20NDND12
05:30NDND13
05:40NDND16
05:50NDND15
06:00NDND17
06:10NDND16
06:20NDND16
06:30NDND18
06:40NDND14
06:50NDND16
07:00NDND14
07:10NDND15
07:20NDND13
07:30NDND10
07:40NDND10
07:50NDND9.6
08:00NDND11
08:10NDND13
08:20NDND16
08:30NDND13
08:40NDND15
08:50NDND14
09:00NDND13
09:10NDND15
09:20NDND14
09:30NDND16
09:40NDND16
09:50NDND16
10:00NDND17
10:10NDND15
10:20NDND13
10:30NDND13
10:40NDND12
10:50NDND14
11:00NDND13
11:10NDND13
11:20NDND14
11:30NDND14
11:40NDND12
11:50NDND9.0
12:00NDND10
12:10NDND12
12:20NDND10
12:30NDND10
12:40NDND11
12:50NDND13
13:00NDND12
13:10NDND8.9
13:20NDND9.7
13:30NDND11
13:40NDND14
13:50NDND13
14:00NDND14
14:10NDND17
14:20NDND16
14:30NDND17
14:40NDND17
14:50NDND16
15:00NDND16
15:10NDND15
15:20NDND15
15:30NDND16
15:40NDND14
15:50NDND16
16:00NDND15
16:10NDND14
16:20NDND15
16:30NDND13
16:40NDND14
16:50NDND14
17:00NDND14
17:10NDND15
17:20NDND17
17:30NDND18
17:40NDND18
17:50NDND19
18:00NDND17
18:10NDND15
18:20NDND14
18:30NDND13
18:40NDND12
18:50NDND13
19:00NDND15
19:10NDND17
19:20NDND16
19:30NDND15
19:40NDND14
19:50NDND11
20:00NDND10
20:10NDNDND
20:20NDNDND
20:30NDND9.6
20:40NDND12
20:50NDND12
21:00NDND12
21:10NDND14
21:20NDND14
21:30NDND11
21:40NDND10
21:50NDND12
22:00NDND13
22:10NDND14
22:20NDND14
22:30NDND14
22:40NDND14
22:50NDND14
23:00NDND12
23:10NDND12
23:20NDND12
23:30NDND13
23:40NDND11
23:50NDND8.8