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

○Information

○Measurement value list ： 2026/01/08(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND19
00:10NDND20
00:20NDND19
00:30NDND23
00:40NDND22
00:50NDND24
01:00NDND22
01:10NDND22
01:20NDND22
01:30NDND23
01:40NDND23
01:50NDND23
02:00NDND27
02:10NDND27
02:20NDND27
02:30NDND26
02:40NDND22
02:50NDND21
03:00NDND18
03:10NDND16
03:20NDND17
03:30NDND16
03:40NDND18
03:50NDND19
04:00NDND19
04:10NDND20
04:20NDND20
04:30NDND21
04:40NDND21
04:50NDND22
05:00NDND21
05:10NDND23
05:20NDND23
05:30NDND23
05:40NDND23
05:50NDND22
06:00NDND23
06:10NDND22
06:20NDND18
06:30NDND17
06:40NDND19
06:50NDND20
07:00NDND20
07:10NDND22
07:20NDND23
07:30NDND26
07:40NDND25
07:50NDND24
08:00NDND24
08:10NDND21
08:20NDND20
08:30NDND20
08:40NDND17
08:50NDND16
09:00NDND16
09:10NDND16
09:20NDND16
09:30NDND14
09:40NDND17
09:50NDND19
10:00NDND20
10:10NDND22
10:20NDND23
10:30NDND22
10:40NDND22
10:50NDND23
11:00NDND24
11:10NDND22
11:20NDND23
11:30---
11:40---
11:50---
12:00---
12:10---
12:20---
12:30---
12:40NDND24
12:50NDND26
13:00NDND26
13:10---
13:20---
13:30---
13:40---
13:50---
14:00---
14:10---
14:20---
14:30---
14:40---
14:50---
15:00---
15:10--24
15:20NDND23
15:30NDND21
15:40NDND23
15:50NDND22
16:00NDND21
16:10NDND21
16:20NDND23
16:300.220.05225
16:400.320.2827
16:500.820.6129
17:002.31.627
17:100.870.6027
17:200.400.2226
17:300.110.06126
17:40NDND22
17:50NDND21
18:00NDND22
18:10NDND19
18:20NDND20
18:30NDND17
18:40NDND20
18:50NDND22
19:00NDND21
19:10NDND25
19:20NDND23
19:30NDND26
19:40NDND22
19:50NDND21
20:00NDND23
20:10NDND21
20:20NDND20
20:30NDND18
20:40NDND19
20:50NDND20
21:00NDND21
21:10NDND22
21:20NDND22
21:30NDND22
21:40NDND21
21:50NDND20
22:00NDND18
22:10NDND18
22:20NDND16
22:30NDND19
22:40NDND21
22:50NDND22
23:00NDND22
23:10NDND25
23:20NDND25
23:30NDND21
23:40NDND23
23:50NDND21