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

○Information

○Measurement value list ： 2026/01/16(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

TimeCs137Cs134Totalβ
00:00NDND20
00:10NDND19
00:20NDND17
00:30NDND14
00:40NDND15
00:50NDND16
01:00NDND16
01:10NDND20
01:20NDND20
01:30NDND23
01:40NDND23
01:50NDND23
02:00NDND20
02:10NDND19
02:20NDND19
02:30NDND18
02:40NDND16
02:50NDND17
03:00NDND17
03:10NDND16
03:20NDND16
03:30NDND17
03:40NDND16
03:50NDND14
04:00NDND15
04:10NDND17
04:20NDND15
04:30NDND15
04:40NDND17
04:50NDND18
05:00NDND18
05:10NDND19
05:20NDND21
05:30NDND22
05:40NDND20
05:50NDND19
06:00NDND19
06:10NDND19
06:20NDND19
06:30NDND20
06:40NDND22
06:50NDND23
07:00NDND22
07:10NDND24
07:20NDND22
07:30NDND21
07:40NDND19
07:50NDND20
08:00NDND22
08:10NDND19
08:20NDND20
08:30NDND20
08:40NDND21
08:50NDND20
09:00NDND19
09:10NDND19
09:20NDND20
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---
16:50---
17:00---
17:10NDND24
17:20NDND22
17:30NDND19
17:40NDND21
17:50NDND18
18:00NDND14
18:10NDND12
18:20NDND12
18:30NDND15
18:40NDND12
18:50NDND12
19:00NDND12
19:10NDND11
19:20NDND13
19:30NDND12
19:40NDND13
19:50NDND15
20:00NDND17
20:10NDND18
20:20NDND17
20:30NDND17
20:40NDND16
20:50NDND15
21:00NDND14
21:10NDND14
21:20NDND16
21:30NDND18
21:40NDND21
21:50NDND23
22:00NDND22
22:10NDND21
22:20NDND16
22:30NDND15
22:40NDND12
22:50NDND10
23:00NDND10
23:10NDND11
23:20NDND14
23:30NDND14
23:40NDND16
23:50NDND16