TEPCO : 福島第一原子力発電所における海水放射線モニタ計測結果（過去分）

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福島第一原子力発電所における海水放射線モニタ計測結果（過去分）

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○計測値一覧：2026年04月07日(CSVデータダウンロード)

放射能濃度単位：Bq/L

※検出限界値未満の場合はNDと表示されます。

計測時刻 Cs137 Cs134 全β

00:00 ND ND 20

00:10 ND ND 20

00:20 ND ND 18

00:30 ND ND 21

00:40 ND ND 20

00:50 ND ND 20

01:00 ND ND 18

01:10 ND ND 18

01:20 ND ND 18

01:30 ND ND 16

01:40 ND ND 18

01:50 ND ND 17

02:00 ND ND 18

02:10 ND ND 18

02:20 ND ND 20

02:30 ND ND 20

02:40 ND ND 18

02:50 ND ND 19

03:00 ND ND 21

03:10 ND ND 22

03:20 ND ND 20

03:30 ND ND 20

03:40 ND ND 22

03:50 ND ND 22

04:00 ND ND 18

04:10 ND ND 15

04:20 ND ND 16

04:30 ND ND 15

04:40 ND ND 14

04:50 ND ND 14

05:00 ND ND 15

05:10 ND ND 17

05:20 ND ND 18

05:30 ND ND 21

05:40 ND ND 21

05:50 ND ND 21

06:00 ND ND 22

06:10 ND ND 23

06:20 ND ND 22

06:30 ND ND 21

06:40 ND ND 22

06:50 ND ND 22

07:00 ND ND 22

07:10 ND ND 22

07:20 ND ND 22

07:30 ND ND 22

07:40 ND ND 20

07:50 ND ND 19

08:00 ND ND 18

08:10 ND ND 20

08:20 ND ND 17

08:30 ND ND 17

08:40 ND ND 19

08:50 ND ND 21

09:00 ND ND 20

09:10 ND ND 19

09:20 ND ND 19

09:30 ND ND 21

09:40 ND ND 19

09:50 ND ND 17

10:00 ND ND 17

10:10 ND ND 16

10:20 ND ND 16

10:30 ND ND 14

10:40 ND ND 16

10:50 ND ND 19

11:00 ND ND 20

11:10 ND ND 22

11:20 ND ND 24

11:30 ND ND 24

11:40 ND ND 24

11:50 ND ND 23

12:00 ND ND 22

12:10 ND ND 23

12:20 ND ND 24

12:30 ND ND 21

12:40 ND ND 22

12:50 ND ND 22

13:00 ND ND 25

13:10 ND ND 21

13:20 ND ND 21

13:30 ND ND 25

13:40 ND ND 25

13:50 ND ND 27

14:00 ND ND 23

14:10 ND ND 27

14:20 ND ND 25

14:30 ND ND 23

14:40 ND ND 22

14:50 ND ND 22

15:00 ND ND 23

15:10 ND ND 20

15:20 ND ND 20

15:30 ND ND 19

15:40 ND ND 18

15:50 ND ND 17

16:00 ND ND 17

16:10 ND ND 19

16:20 ND ND 20

16:30 ND ND 18

16:40 ND ND 20

16:50 ND ND 22

17:00 ND ND 24

17:10 ND ND 21

17:20 ND ND 20

17:30 ND ND 22

17:40 ND ND 21

17:50 ND ND 18

18:00 ND ND 16

18:10 ND ND 18

18:20 ND ND 18

18:30 ND ND 18

18:40 ND ND 19

18:50 ND ND 22

19:00 ND ND 22

19:10 ND ND 20

19:20 ND ND 20

19:30 ND ND 20

19:40 ND ND 18

19:50 ND ND 15

20:00 ND ND 15

20:10 ND ND 18

20:20 ND ND 20

20:30 ND ND 22

20:40 ND ND 23

20:50 ND ND 24

21:00 ND ND 25

21:10 ND ND 24

21:20 ND ND 22

21:30 ND ND 20

21:40 ND ND 22

21:50 ND ND 19

22:00 ND ND 20

22:10 ND ND 19

22:20 ND ND 21

22:30 ND ND 23

22:40 ND ND 22

22:50 ND ND 26

23:00 ND ND 24

23:10 ND ND 24

23:20 ND ND 22

23:30 ND ND 22

23:40 ND ND 22

23:50 ND ND 21

計測時刻	Cs137	Cs134	全β
00:00	ND	ND	20
00:10	ND	ND	20
00:20	ND	ND	18
00:30	ND	ND	21
00:40	ND	ND	20
00:50	ND	ND	20
01:00	ND	ND	18
01:10	ND	ND	18
01:20	ND	ND	18
01:30	ND	ND	16
01:40	ND	ND	18
01:50	ND	ND	17
02:00	ND	ND	18
02:10	ND	ND	18
02:20	ND	ND	20
02:30	ND	ND	20
02:40	ND	ND	18
02:50	ND	ND	19
03:00	ND	ND	21
03:10	ND	ND	22
03:20	ND	ND	20
03:30	ND	ND	20
03:40	ND	ND	22
03:50	ND	ND	22
04:00	ND	ND	18
04:10	ND	ND	15
04:20	ND	ND	16
04:30	ND	ND	15
04:40	ND	ND	14
04:50	ND	ND	14
05:00	ND	ND	15
05:10	ND	ND	17
05:20	ND	ND	18
05:30	ND	ND	21
05:40	ND	ND	21
05:50	ND	ND	21
06:00	ND	ND	22
06:10	ND	ND	23
06:20	ND	ND	22
06:30	ND	ND	21
06:40	ND	ND	22
06:50	ND	ND	22
07:00	ND	ND	22
07:10	ND	ND	22
07:20	ND	ND	22
07:30	ND	ND	22
07:40	ND	ND	20
07:50	ND	ND	19
08:00	ND	ND	18
08:10	ND	ND	20
08:20	ND	ND	17
08:30	ND	ND	17
08:40	ND	ND	19
08:50	ND	ND	21
09:00	ND	ND	20
09:10	ND	ND	19
09:20	ND	ND	19
09:30	ND	ND	21
09:40	ND	ND	19
09:50	ND	ND	17
10:00	ND	ND	17
10:10	ND	ND	16
10:20	ND	ND	16
10:30	ND	ND	14
10:40	ND	ND	16
10:50	ND	ND	19
11:00	ND	ND	20
11:10	ND	ND	22
11:20	ND	ND	24
11:30	ND	ND	24
11:40	ND	ND	24
11:50	ND	ND	23
12:00	ND	ND	22
12:10	ND	ND	23
12:20	ND	ND	24
12:30	ND	ND	21
12:40	ND	ND	22
12:50	ND	ND	22
13:00	ND	ND	25
13:10	ND	ND	21
13:20	ND	ND	21
13:30	ND	ND	25
13:40	ND	ND	25
13:50	ND	ND	27
14:00	ND	ND	23
14:10	ND	ND	27
14:20	ND	ND	25
14:30	ND	ND	23
14:40	ND	ND	22
14:50	ND	ND	22
15:00	ND	ND	23
15:10	ND	ND	20
15:20	ND	ND	20
15:30	ND	ND	19
15:40	ND	ND	18
15:50	ND	ND	17
16:00	ND	ND	17
16:10	ND	ND	19
16:20	ND	ND	20
16:30	ND	ND	18
16:40	ND	ND	20
16:50	ND	ND	22
17:00	ND	ND	24
17:10	ND	ND	21
17:20	ND	ND	20
17:30	ND	ND	22
17:40	ND	ND	21
17:50	ND	ND	18
18:00	ND	ND	16
18:10	ND	ND	18
18:20	ND	ND	18
18:30	ND	ND	18
18:40	ND	ND	19
18:50	ND	ND	22
19:00	ND	ND	22
19:10	ND	ND	20
19:20	ND	ND	20
19:30	ND	ND	20
19:40	ND	ND	18
19:50	ND	ND	15
20:00	ND	ND	15
20:10	ND	ND	18
20:20	ND	ND	20
20:30	ND	ND	22
20:40	ND	ND	23
20:50	ND	ND	24
21:00	ND	ND	25
21:10	ND	ND	24
21:20	ND	ND	22
21:30	ND	ND	20
21:40	ND	ND	22
21:50	ND	ND	19
22:00	ND	ND	20
22:10	ND	ND	19
22:20	ND	ND	21
22:30	ND	ND	23
22:40	ND	ND	22
22:50	ND	ND	26
23:00	ND	ND	24
23:10	ND	ND	24
23:20	ND	ND	22
23:30	ND	ND	22
23:40	ND	ND	22
23:50	ND	ND	21