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）

○お知らせ

○計測値一覧：2026年04月13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 13

00:10 ND ND 15

00:20 ND ND 15

00:30 ND ND 16

00:40 ND ND 16

00:50 ND ND 16

01:00 ND ND 16

01:10 ND ND 19

01:20 ND ND 18

01:30 ND ND 15

01:40 ND ND 15

01:50 ND ND 15

02:00 ND ND 17

02:10 ND ND 17

02:20 ND ND 17

02:30 ND ND 18

02:40 ND ND 16

02:50 ND ND 17

03:00 ND ND 17

03:10 ND ND 17

03:20 ND ND 18

03:30 ND ND 19

03:40 ND ND 22

03:50 ND ND 22

04:00 ND ND 20

04:10 ND ND 17

04:20 ND ND 16

04:30 ND ND 16

04:40 ND ND 15

04:50 ND ND 15

05:00 ND ND 16

05:10 ND ND 18

05:20 ND ND 20

05:30 ND ND 22

05:40 ND ND 21

05:50 ND ND 19

06:00 ND ND 18

06:10 ND ND 19

06:20 ND ND 19

06:30 ND ND 19

06:40 ND ND 18

06:50 ND ND 19

07:00 ND ND 18

07:10 ND ND 17

07:20 ND ND 17

07:30 ND ND 15

07:40 ND ND 13

07:50 ND ND 12

08:00 ND ND 15

08:10 ND ND 16

08:20 ND ND 14

08:30 ND ND 13

08:40 ND ND 18

08:50 ND ND 18

09:00 ND ND 18

09:10 ND ND 16

09:20 ND ND 17

09:30 ND ND 17

09:40 ND ND 16

09:50 ND ND 14

10:00 ND ND 15

10:10 ND ND 15

10:20 ND ND 13

10:30 ND ND 14

10:40 ND ND 13

10:50 ND ND 14

11:00 - - -

11:10 - - -

11:20 - - -

11:30 ND ND 19

11:40 ND ND 20

11:50 ND ND 21

12:00 ND ND 20

12:10 ND ND 18

12:20 ND ND 18

12:30 ND ND 17

12:40 ND ND 17

12:50 ND ND 18

13:00 ND ND 18

13:10 ND ND 16

13:20 ND ND 16

13:30 ND ND 16

13:40 ND ND 18

13:50 ND ND 16

14:00 ND ND 17

14:10 ND ND 18

14:20 ND ND 15

14:30 ND ND 15

14:40 ND ND 15

14:50 ND ND 15

15:00 ND ND 15

15:10 ND ND 16

15:20 ND ND 17

15:30 ND ND 17

15:40 ND ND 16

15:50 ND ND 16

16:00 ND ND 15

16:10 ND ND 18

16:20 ND ND 18

16:30 ND ND 16

16:40 ND ND 16

16:50 ND ND 17

17:00 ND ND 17

17:10 ND ND 16

17:20 ND ND 18

17:30 ND ND 21

17:40 ND ND 22

17:50 ND ND 21

18:00 ND ND 22

18:10 ND ND 22

18:20 ND ND 21

18:30 ND ND 18

18:40 ND ND 20

18:50 ND ND 18

19:00 ND ND 18

19:10 ND ND 18

19:20 ND ND 16

19:30 ND ND 20

19:40 ND ND 20

19:50 ND ND 21

20:00 ND ND 20

20:10 ND ND 21

20:20 ND ND 21

20:30 ND ND 20

20:40 ND ND 20

20:50 ND ND 21

21:00 ND ND 20

21:10 ND ND 20

21:20 ND ND 20

21:30 ND ND 19

21:40 ND ND 16

21:50 ND ND 14

22:00 ND ND 17

22:10 ND ND 15

22:20 ND ND 14

22:30 ND ND 14

22:40 ND ND 14

22:50 ND ND 16

23:00 ND ND 16

23:10 ND ND 17

23:20 ND ND 17

23:30 ND ND 18

23:40 ND ND 21

23:50 ND ND 21

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