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

○Information

○Measurement value list ： 2026/01/07(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND21
00:10NDND21
00:20NDND22
00:30NDND23
00:40NDND23
00:50NDND21
01:00NDND18
01:10NDND18
01:20NDND17
01:30NDND16
01:40NDND16
01:50NDND18
02:00NDND16
02:10NDND17
02:20NDND19
02:30NDND20
02:40NDND20
02:50NDND20
03:00NDND24
03:10NDND22
03:20NDND21
03:30NDND22
03:40NDND22
03:50NDND22
04:00NDND22
04:10NDND25
04:20NDND26
04:30NDND23
04:40NDND24
04:50NDND23
05:00NDND21
05:10NDND20
05:20NDND19
05:30NDND22
05:40NDND20
05:50NDND20
06:00NDND20
06:10NDND21
06:20NDND21
06:30NDND19
06:40NDND20
06:50NDND19
07:00NDND20
07:10NDND18
07:20NDND17
07:30NDND19
07:40NDND18
07:50NDND18
08:00NDND18
08:10NDND19
08:20NDND20
08:30NDND17
08:40NDND19
08:50NDND19
09:00NDND20
09:10NDND18
09:20NDND17
09:30NDND17
09:40NDND19
09:50NDND17
10:00NDND16
10:10---
10:20---
10:30---
10:40---
10:50---
11:00---
11:10---
11:20---
11:30---
11:40---
11:50---
12:00---
12:10---
12:20---
12:30---
12:40---
12:50---
13:00---
13:10---
13:20---
13:30NDND23
13:40NDND20
13:50NDND20
14:00NDND22
14:10NDND22
14:20NDND21
14:30NDND18
14:40NDND19
14:50NDND18
15:00NDND17
15:10NDND17
15:20NDND16
15:30NDND17
15:40NDND21
15:50NDND24
16:00NDND22
16:10NDND21
16:20NDND22
16:30NDND23
16:40NDND20
16:50NDND18
17:00NDND18
17:10NDND17
17:20NDND17
17:30NDND16
17:40NDND17
17:50NDND17
18:00NDND20
18:10NDND21
18:20NDND23
18:30NDND23
18:40NDND22
18:50NDND21
19:00NDND18
19:10NDND23
19:20NDND21
19:30NDND22
19:40NDND23
19:50NDND23
20:00NDND22
20:10NDND17
20:20NDND18
20:30NDND18
20:40NDND16
20:50NDND16
21:00NDND16
21:10NDND17
21:20NDND15
21:30NDND12
21:40NDND17
21:50NDND18
22:00NDND19
22:10NDND21
22:20NDND23
22:30NDND26
22:40NDND24
22:50NDND25
23:00NDND25
23:10NDND24
23:20NDND24
23:30NDND21
23:40NDND21
23:50NDND19