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

○Information

○Measurement value list ： 2018/03/04(CSV Download)

Radioactivity Concentration Unit:Bq/L

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

Time	Cs137	Cs134	Totalβ
00:00	1.3	0.10	ND
00:10	1.2	0.090	ND
00:20	1.3	0.082	ND
00:30	1.2	0.087	ND
00:40	1.3	0.079	ND
00:50	1.3	0.086	ND
01:00	1.3	0.088	ND
01:10	1.3	0.089	ND
01:20	1.3	0.093	ND
01:30	1.3	0.10	ND
01:40	1.2	0.097	ND
01:50	1.2	0.096	ND
02:00	1.2	0.083	ND
02:10	1.2	0.077	10
02:20	1.2	0.075	9.7
02:30	1.2	0.066	ND
02:40	1.2	0.070	ND
02:50	1.2	0.072	ND
03:00	1.2	0.073	ND
03:10	1.2	0.086	ND
03:20	1.2	0.077	9.2
03:30	1.2	0.078	9.3
03:40	1.2	0.079	9.7
03:50	1.2	0.063	9.7
04:00	1.2	0.069	8.9
04:10	1.2	0.077	9.5
04:20	1.1	0.083	ND
04:30	1.1	0.087	9.3
04:40	1.1	0.092	8.8
04:50	1.2	0.077	9.5
05:00	1.1	0.081	9.0
05:10	1.1	0.087	10
05:20	1.1	0.088	10
05:30	1.1	0.081	10
05:40	1.1	0.077	9.3
05:50	1.2	0.079	9.3
06:00	1.2	0.070	ND
06:10	1.2	0.061	ND
06:20	1.2	0.064	ND
06:30	1.2	0.062	ND
06:40	1.3	0.058	ND
06:50	1.3	0.058	ND
07:00	1.3	0.069	ND
07:10	1.3	0.077	ND
07:20	1.3	0.069	ND
07:30	1.3	0.077	ND
07:40	1.3	0.076	ND
07:50	1.3	0.085	ND
08:00	1.3	0.078	ND
08:10	1.3	0.071	ND
08:20	1.3	0.076	ND
08:30	1.4	0.072	ND
08:40	1.4	0.067	ND
08:50	1.3	0.074	ND
09:00	1.3	0.070	ND
09:10	1.3	0.075	ND
09:20	1.3	0.069	ND
09:30	1.3	0.078	ND
09:40	1.3	0.081	ND
09:50	1.3	0.083	ND
10:00	1.3	0.091	ND
10:10	1.3	0.10	ND
10:20	1.3	0.094	ND
10:30	1.3	0.084	ND
10:40	1.3	0.082	ND
10:50	1.2	0.093	ND
11:00	1.3	0.081	ND
11:10	1.3	0.070	ND
11:20	1.3	0.074	ND
11:30	1.3	0.076	ND
11:40	1.3	0.067	ND
11:50	1.3	0.060	ND
12:00	1.3	0.065	ND
12:10	1.3	0.060	ND
12:20	1.3	0.064	ND
12:30	1.3	0.069	ND
12:40	1.2	0.088	ND
12:50	1.2	0.085	ND
13:00	1.2	0.083	ND
13:10	1.2	0.082	ND
13:20	1.2	0.076	ND
13:30	1.2	0.069	ND
13:40	1.2	0.054	ND
13:50	1.2	0.053	ND
14:00	1.2	0.051	ND
14:10	1.2	0.053	10
14:20	1.2	0.055	11
14:30	1.2	0.060	ND
14:40	1.2	0.067	ND
14:50	1.2	0.067	ND
15:00	1.1	0.071	ND
15:10	1.1	0.070	ND
15:20	1.1	0.062	ND
15:30	1.1	0.061	ND
15:40	1.1	0.055	ND
15:50	1.2	0.030	ND
16:00	1.1	0.045	11
16:10	1.2	0.038	9.3
16:20	1.2	0.025	8.8
16:30	1.1	0.044	ND
16:40	1.1	0.046	ND
16:50	1.1	0.049	10
17:00	1.1	0.049	ND
17:10	1.1	0.043	9.9
17:20	1.1	0.042	9.2
17:30	1.2	0.041	9.5
17:40	1.2	0.038	ND
17:50	1.2	0.042	ND
18:00	1.2	0.047	ND
18:10	1.2	0.065	ND
18:20	1.2	0.065	ND
18:30	1.1	0.064	ND
18:40	1.1	0.075	ND
18:50	1.1	0.069	ND
19:00	1.1	0.078	ND
19:10	1.1	0.072	ND
19:20	1.1	0.073	ND
19:30	1.1	0.072	9.0
19:40	1.1	0.063	11
19:50	1.1	0.063	9.3
20:00	1.1	0.053	11
20:10	1.1	0.053	9.3
20:20	1.2	0.048	ND
20:30	1.1	0.057	ND
20:40	1.1	0.060	ND
20:50	1.1	0.064	ND
21:00	1.1	0.069	ND
21:10	1.1	0.070	ND
21:20	1.1	0.073	ND
21:30	1.2	0.066	ND
21:40	1.2	0.057	ND
21:50	1.2	0.053	ND
22:00	1.2	0.053	ND
22:10	1.3	0.056	ND
22:20	1.2	0.063	ND
22:30	1.2	0.068	ND
22:40	1.3	0.063	ND
22:50	1.2	0.079	9.3
23:00	1.2	0.082	ND
23:10	1.2	0.083	ND
23:20	1.2	0.074	ND
23:30	1.2	0.064	ND
23:40	1.2	0.078	ND
23:50	1.2	0.068	ND

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

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