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

○Information

○Measurement value list ： 2025/12/06(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND19
00:10NDND20
00:20NDND20
00:30NDND21
00:40NDND20
00:50NDND17
01:00NDND17
01:10NDND18
01:20NDND17
01:30NDND17
01:40NDND16
01:50NDND18
02:00NDND18
02:10NDND18
02:20NDND18
02:30NDND19
02:40NDND21
02:50NDND20
03:00NDND20
03:10NDND23
03:20NDND22
03:30NDND20
03:40NDND18
03:50NDND19
04:00NDND17
04:10NDND14
04:20NDND13
04:30NDND15
04:40NDND14
04:50NDND17
05:00NDND16
05:10NDND16
05:20NDND18
05:30NDND18
05:40NDND20
05:50NDND15
06:00NDND16
06:10NDND13
06:20NDND12
06:30NDND11
06:40NDND14
06:50NDND17
07:00NDND16
07:10NDND19
07:20NDND19
07:30NDND17
07:40NDND14
07:50NDND16
08:00NDND16
08:10NDND16
08:20NDND16
08:30NDND18
08:40NDND17
08:50NDND14
09:00NDND14
09:10NDND12
09:20NDND14
09:30NDND13
09:40NDND12
09:50NDND12
10:00NDND14
10:10NDND14
10:20NDND12
10:30NDND14
10:40NDND13
10:50NDND14
11:00NDND16
11:10NDND15
11:20NDND17
11:30NDND16
11:40NDND16
11:50NDND15
12:00NDND11
12:10NDND12
12:20NDND14
12:30NDND20
12:40NDND21
12:50NDND21
13:00NDND24
13:10NDND22
13:20NDND20
13:30NDND15
13:40NDND13
13:50NDND12
14:00NDNDND
14:10NDND9.5
14:20NDND10
14:30NDND10
14:40NDND13
14:50NDND14
15:00NDND17
15:10NDND20
15:20NDND20
15:30NDND20
15:40NDND18
15:50NDND18
16:00NDND18
16:10NDND17
16:20NDND13
16:30NDND11
16:40NDND12
16:50NDND12
17:00NDND9.7
17:10NDND8.8
17:20NDND11
17:30NDND13
17:40NDND14
17:50NDND15
18:00NDND17
18:10NDND17
18:20NDND18
18:30NDND18
18:40NDND19
18:50NDND18
19:00NDND20
19:10NDND22
19:20NDND22
19:30NDND23
19:40NDND20
19:50NDND20
20:00NDND16
20:10NDND15
20:20NDND12
20:30NDND12
20:40NDND12
20:50NDND12
21:00NDND14
21:10NDND15
21:20NDND16
21:30NDND17
21:40NDND19
21:50NDND19
22:00NDND22
22:10NDND23
22:20NDND22
22:30NDND22
22:40NDND21
22:50NDND21
23:00NDND18
23:10NDND14
23:20NDND15
23:30NDND14
23:40NDND13
23:50NDND15