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

○Information

○Measurement value list ： 2025/11/19(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

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