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

○Information

○Measurement value list ： 2026/01/30(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND21
00:10NDND22
00:20NDND19
00:30NDND21
00:40NDND20
00:50NDND20
01:00NDND22
01:10NDND24
01:20NDND24
01:30NDND23
01:40NDND23
01:50NDND21
02:00NDND21
02:10NDND19
02:20NDND20
02:30NDND23
02:40NDND22
02:50NDND24
03:00NDND23
03:10NDND26
03:20NDND26
03:30NDND22
03:40NDND23
03:50NDND22
04:00NDND20
04:10NDND17
04:20NDND16
04:30NDND18
04:40NDND13
04:50NDND15
05:00NDND16
05:10NDND16
05:20NDND17
05:30NDND17
05:40NDND20
05:50NDND20
06:00NDND18
06:10NDND20
06:20NDND19
06:30NDND20
06:40NDND19
06:50NDND20
07:00NDND22
07:10NDND23
07:20NDND24
07:30NDND23
07:40NDND22
07:50NDND24
08:00NDND26
08:10NDND23
08:20NDND21
08:30NDND22
08:40NDND24
08:50NDND23
09:00NDND20
09:10NDND23
09:20NDND24
09:30NDND22
09:40NDND23
09:50NDND22
10:00NDND23
10:10NDND22
10:20NDND25
10:30NDND27
10:40NDND26
10:50NDND28
11:00NDND28
11:10NDND28
11:20NDND24
11:30NDND23
11:40NDND22
11:50NDND20
12:00NDND20
12:10NDND19
12:20NDND21
12:30NDND19
12:40NDND19
12:50NDND21
13:00NDND21
13:10NDND20
13:20NDND20
13:30NDND22
13:40NDND22
13:50NDND22
14:00NDND20
14:10NDND21
14:20NDND22
14:30---
14:40---
14:50---
15:00---
15:10---
15:20---
15:30---
15:40---
15:50---
16:00---
16:10---
16:20---
16:30---
16:40---
16:50---
17:00---
17:10---
17:20---
17:30NDND18
17:40NDND18
17:50NDND18
18:00NDND18
18:10NDND20
18:20NDND20
18:30NDND19
18:40NDND18
18:50NDND19
19:00NDND22
19:10NDND21
19:20NDND24
19:30NDND21
19:40NDND21
19:50NDND20
20:00NDND18
20:10NDND17
20:20NDND16
20:30NDND19
20:40NDND21
20:50NDND20
21:00NDND19
21:10NDND18
21:20NDND18
21:30NDND18
21:40NDND16
21:50NDND18
22:00NDND18
22:10NDND18
22:20NDND20
22:30NDND19
22:40NDND20
22:50NDND18
23:00NDND18
23:10NDND17
23:20NDND16
23:30NDND17
23:40NDND16
23:50NDND18