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

○Information

○Measurement value list ： 2026/02/16(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND24
00:10NDND21
00:20NDND22
00:30NDND21
00:40NDND21
00:50NDND22
01:00NDND22
01:10NDND24
01:20NDND26
01:30NDND24
01:40NDND23
01:50NDND22
02:00NDND18
02:10NDND20
02:20NDND18
02:30NDND22
02:40NDND25
02:50NDND28
03:00NDND32
03:10NDND27
03:20NDND27
03:30NDND23
03:40NDND20
03:50NDND18
04:00NDND18
04:10NDND19
04:20NDND18
04:30NDND20
04:40NDND20
04:50NDND23
05:00NDND24
05:10NDND26
05:20NDND26
05:30NDND25
05:40NDND27
05:50NDND22
06:00NDND22
06:10NDND23
06:20NDND20
06:30NDND20
06:40NDND18
06:50NDND22
07:00NDND19
07:10NDND16
07:20NDND17
07:30NDND21
07:40NDND20
07:50NDND19
08:00NDND20
08:10NDND22
08:20NDND25
08:30NDND21
08:40NDND22
08:50NDND21
09:00NDND23
09:10NDND23
09:20NDND23
09:30NDND24
09:40NDND24
09:50NDND24
10:00NDND23
10:10NDND23
10:20NDND22
10:30NDND22
10:40NDND24
10:50NDND24
11:00NDND24
11:10NDND26
11:20NDND26
11:30NDND26
11:40NDND26
11:50NDND26
12:00NDND26
12:10NDND22
12:20NDND20
12:30NDND19
12:40NDND18
12:50NDND18
13:00NDND18
13:10NDND21
13:20NDND24
13:30NDND24
13:40NDND23
13:50NDND22
14:00NDND21
14:10NDND19
14:20NDND19
14:30NDND21
14:40NDND20
14:50NDND21
15:00NDND20
15:10NDND24
15:20NDND21
15:30NDND19
15:40NDND19
15:50NDND21
16:00NDND21
16:10NDND18
16:20NDND18
16:30NDND18
16:40NDND21
16:50NDND18
17:00NDND21
17:10NDND22
17:20NDND22
17:30NDND23
17:40NDND22
17:50NDND22
18:00NDND20
18:10NDND16
18:20NDND17
18:30NDND16
18:40NDND18
18:50NDND17
19:00NDND19
19:10NDND23
19:20NDND22
19:30NDND22
19:40NDND21
19:50NDND21
20:00NDND19
20:10NDND16
20:20NDND17
20:30NDND16
20:40NDND18
20:50NDND19
21:00NDND22
21:10NDND24
21:20NDND26
21:30NDND27
21:40NDND25
21:50NDND23
22:00NDND21
22:10NDND22
22:20NDND20
22:30NDND20
22:40NDND20
22:50NDND21
23:00NDND21
23:10NDND21
23:20NDND20
23:30NDND21
23:40NDND21
23:50NDND21