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28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 21

00:10 ND ND 20

00:20 ND ND 17

00:30 ND ND 19

00:40 ND ND 18

00:50 ND ND 17

01:00 ND ND 18

01:10 ND ND 19

01:20 ND ND 18

01:30 ND ND 18

01:40 ND ND 18

01:50 ND ND 17

02:00 ND ND 17

02:10 ND ND 18

02:20 ND ND 21

02:30 ND ND 21

02:40 ND ND 20

02:50 ND ND 19

03:00 ND ND 20

03:10 ND ND 17

03:20 ND ND 17

03:30 ND ND 16

03:40 ND ND 17

03:50 ND ND 20

04:00 ND ND 19

04:10 ND ND 18

04:20 ND ND 17

04:30 ND ND 18

04:40 ND ND 15

04:50 ND ND 15

05:00 ND ND 14

05:10 ND ND 15

05:20 ND ND 14

05:30 ND ND 12

05:40 ND ND 15

05:50 ND ND 16

06:00 ND ND 17

06:10 ND ND 16

06:20 ND ND 16

06:30 ND ND 17

06:40 ND ND 16

06:50 ND ND 14

07:00 ND ND 13

07:10 ND ND 14

07:20 ND ND 18

07:30 ND ND 18

07:40 ND ND 18

07:50 ND ND 18

08:00 ND ND 20

08:10 ND ND 18

08:20 ND ND 16

08:30 ND ND 15

08:40 ND ND 17

08:50 ND ND 18

09:00 ND ND 17

09:10 ND ND 18

09:20 ND ND 21

09:30 ND ND 19

09:40 ND ND 17

09:50 ND ND 17

10:00 ND ND 16

10:10 ND ND 14

10:20 ND ND 11

10:30 ND ND 14

10:40 ND ND 13

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 ND ND 22

13:30 ND ND 20

13:40 ND ND 19

13:50 ND ND 17

14:00 ND ND 19

14:10 ND ND 19

14:20 ND ND 18

14:30 ND ND 20

14:40 ND ND 22

14:50 ND ND 22

15:00 ND ND 20

15:10 ND ND 23

15:20 ND ND 24

15:30 ND ND 21

15:40 ND ND 19

15:50 ND ND 18

16:00 ND ND 18

16:10 ND ND 17

16:20 ND ND 13

16:30 ND ND 17

16:40 ND ND 17

16:50 ND ND 18

17:00 ND ND 19

17:10 ND ND 17

17:20 ND ND 20

17:30 ND ND 18

17:40 ND ND 18

17:50 ND ND 17

18:00 ND ND 17

18:10 ND ND 17

18:20 ND ND 16

18:30 ND ND 16

18:40 ND ND 15

18:50 ND ND 16

19:00 ND ND 18

19:10 ND ND 20

19:20 ND ND 21

19:30 ND ND 20

19:40 ND ND 23

19:50 ND ND 20

20:00 ND ND 19

20:10 ND ND 15

20:20 ND ND 13

20:30 ND ND 16

20:40 ND ND 14

20:50 ND ND 17

21:00 ND ND 17

21:10 ND ND 21

21:20 ND ND 22

21:30 ND ND 20

21:40 ND ND 19

21:50 ND ND 17

22:00 ND ND 19

22:10 ND ND 18

22:20 ND ND 18

22:30 ND ND 16

22:40 ND ND 15

22:50 ND ND 14

23:00 ND ND 13

23:10 ND ND 11

23:20 ND ND 10

23:30 ND ND 13

23:40 ND ND 14

23:50 ND ND 15

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