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

○Information

○Measurement value list ： 2026/01/15(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND18
00:10NDND17
00:20NDND18
00:30NDND20
00:40NDND19
00:50NDND19
01:00NDND21
01:10NDND23
01:20NDND23
01:30NDND22
01:40NDND21
01:50NDND19
02:00NDND18
02:10NDND16
02:20NDND16
02:30NDND17
02:40NDND16
02:50NDND19
03:00NDND20
03:10NDND20
03:20NDND17
03:30NDND17
03:40NDND17
03:50NDND16
04:00NDND15
04:10NDND16
04:20NDND18
04:30NDND18
04:40NDND20
04:50NDND20
05:00NDND22
05:10NDND22
05:20NDND22
05:30NDND22
05:40NDND22
05:50NDND22
06:00NDND22
06:10NDND24
06:20NDND25
06:30NDND26
06:40NDND24
06:50NDND22
07:00NDND24
07:10NDND20
07:20NDND17
07:30NDND14
07:40NDND14
07:50NDND15
08:00NDND13
08:10NDND15
08:20NDND18
08:30NDND17
08:40NDND16
08:50NDND16
09:00NDND17
09:10NDND18
09:20NDND16
09:30---
09:40---
09:50---
10:00---
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---
13:30---
13:40---
13:50---
14:00---
14:10---
14:20---
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---
16:50NDND21
17:00NDND22
17:10NDND21
17:20NDND21
17:30NDND20
17:40NDND21
17:50NDND21
18:00NDND21
18:10NDND20
18:20NDND19
18:30NDND18
18:40NDND18
18:50NDND20
19:00NDND20
19:10NDND20
19:20NDND24
19:30NDND21
19:40NDND24
19:50NDND22
20:00NDND21
20:10NDND21
20:20NDND21
20:30NDND22
20:40NDND22
20:50NDND22
21:00NDND21
21:10NDND21
21:20NDND20
21:30NDND21
21:40NDND17
21:50NDND19
22:00NDND21
22:10NDND20
22:20NDND20
22:30NDND19
22:40NDND23
22:50NDND22
23:00NDND21
23:10NDND18
23:20NDND20
23:30NDND21
23:40NDND19
23:50NDND18