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

○Information

○Measurement value list ： 2026/01/29(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND17
00:10NDND18
00:20NDND19
00:30NDND18
00:40NDND18
00:50NDND16
01:00NDND18
01:10NDND16
01:20NDND16
01:30NDND16
01:40NDND19
01:50NDND20
02:00NDND21
02:10NDND22
02:20NDND22
02:30NDND23
02:40NDND21
02:50NDND18
03:00NDND15
03:10NDND16
03:20NDND16
03:30NDND18
03:40NDND20
03:50NDND24
04:00NDND24
04:10NDND23
04:20NDND22
04:30NDND19
04:40NDND18
04:50NDND17
05:00NDND20
05:10NDND20
05:20NDND20
05:30NDND20
05:40NDND18
05:50NDND19
06:00NDND18
06:10NDND17
06:20NDND14
06:30NDND16
06:40NDND17
06:50NDND16
07:00NDND15
07:10NDND17
07:20NDND21
07:30NDND20
07:40NDND18
07:50NDND19
08:00NDND20
08:10NDND21
08:20NDND19
08:30NDND21
08:40NDND20
08:50NDND21
09:00NDND19
09:10NDND19
09:20NDND21
09:30NDND20
09:40NDND21
09:50NDND23
10:00NDND24
10:10NDND23
10:20NDND24
10:30NDND24
10:40NDND24
10:50NDND23
11:00NDND23
11:10NDND22
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---
13:30---
13:40---
13:50---
14:00---
14:10NDND23
14:20NDND24
14:30NDND23
14:40NDND24
14:50NDND24
15:00NDND24
15:10NDND25
15:20NDND26
15:30NDND25
15:40NDND23
15:50NDND21
16:00NDND19
16:10NDND17
16:20NDND16
16:30NDND19
16:40NDND19
16:50NDND23
17:00NDND25
17:10NDND23
17:20NDND25
17:30NDND20
17:40NDND19
17:50NDND17
18:00NDND18
18:10NDND20
18:20NDND21
18:30NDND22
18:40NDND23
18:50NDND23
19:00NDND21
19:10NDND21
19:20NDND19
19:30NDND22
19:40NDND20
19:50NDND18
20:00NDND20
20:10NDND19
20:20NDND20
20:30NDND20
20:40NDND21
20:50NDND24
21:00NDND24
21:10NDND25
21:20NDND23
21:30NDND22
21:40NDND22
21:50NDND20
22:00NDND20
22:10NDND19
22:20NDND21
22:30NDND23
22:40NDND24
22:50NDND23
23:00NDND24
23:10NDND22
23:20NDND23
23:30NDND20
23:40NDND20
23:50NDND22