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24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 18

00:10 ND ND 16

00:20 ND ND 15

00:30 ND ND 17

00:40 ND ND 18

00:50 ND ND 19

01:00 ND ND 18

01:10 ND ND 18

01:20 ND ND 19

01:30 ND ND 19

01:40 ND ND 21

01:50 ND ND 21

02:00 ND ND 23

02:10 ND ND 24

02:20 ND ND 25

02:30 ND ND 24

02:40 ND ND 21

02:50 ND ND 22

03:00 ND ND 21

03:10 ND ND 19

03:20 ND ND 19

03:30 ND ND 20

03:40 ND ND 20

03:50 ND ND 18

04:00 ND ND 18

04:10 ND ND 20

04:20 ND ND 20

04:30 ND ND 21

04:40 ND ND 22

04:50 ND ND 23

05:00 ND ND 20

05:10 ND ND 18

05:20 ND ND 17

05:30 ND ND 15

05:40 ND ND 15

05:50 ND ND 15

06:00 ND ND 15

06:10 ND ND 18

06:20 ND ND 18

06:30 ND ND 18

06:40 ND ND 18

06:50 ND ND 18

07:00 ND ND 20

07:10 ND ND 17

07:20 ND ND 16

07:30 ND ND 19

07:40 ND ND 18

07:50 ND ND 18

08:00 ND ND 19

08:10 ND ND 20

08:20 ND ND 21

08:30 ND ND 17

08:40 ND ND 15

08:50 ND ND 14

09:00 ND ND 14

09:10 ND ND 14

09:20 ND ND 17

09:30 ND ND 19

09:40 ND ND 20

09:50 ND ND 22

10:00 ND ND 21

10:10 ND ND 25

10:20 ND ND 22

10:30 ND ND 20

10:40 ND ND 20

10:50 ND ND 20

11:00 ND ND 20

11:10 ND ND 18

11:20 - - -

11:30 - - -

11:40 - - -

11:50 - - -

12:00 ND ND 19

12:10 ND ND 18

12:20 ND ND 17

12:30 ND ND 17

12:40 ND ND 17

12:50 ND ND 17

13:00 ND ND 15

13:10 ND ND 16

13:20 ND ND 15

13:30 ND ND 16

13:40 ND ND 17

13:50 ND ND 18

14:00 ND ND 19

14:10 ND ND 20

14:20 ND ND 20

14:30 ND ND 18

14:40 ND ND 18

14:50 ND ND 17

15:00 ND ND 18

15:10 ND ND 17

15:20 ND ND 18

15:30 ND ND 20

15:40 ND ND 20

15:50 ND ND 21

16:00 ND ND 20

16:10 ND ND 18

16:20 ND ND 18

16:30 ND ND 20

16:40 ND ND 18

16:50 ND ND 17

17:00 ND ND 17

17:10 ND ND 17

17:20 ND ND 18

17:30 ND ND 17

17:40 ND ND 22

17:50 ND ND 19

18:00 ND ND 19

18:10 ND ND 20

18:20 ND ND 19

18:30 ND ND 17

18:40 ND ND 13

18:50 ND ND 14

19:00 ND ND 14

19:10 ND ND 15

19:20 ND ND 18

19:30 ND ND 18

19:40 ND ND 20

19:50 ND ND 19

20:00 ND ND 19

20:10 ND ND 18

20:20 ND ND 17

20:30 ND ND 18

20:40 ND ND 18

20:50 ND ND 17

21:00 ND ND 18

21:10 ND ND 16

21:20 ND ND 16

21:30 ND ND 14

21:40 ND ND 14

21:50 ND ND 14

22:00 ND ND 16

22:10 ND ND 15

22:20 ND ND 16

22:30 ND ND 18

22:40 ND ND 18

22:50 ND ND 18

23:00 ND ND 14

23:10 ND ND 14

23:20 ND ND 14

23:30 ND ND 13

23:40 ND ND 12

23:50 ND ND 15

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