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05月20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 16

00:10 ND ND 14

00:20 ND ND 14

00:30 ND ND 16

00:40 ND ND 19

00:50 ND ND 20

01:00 ND ND 18

01:10 ND ND 18

01:20 ND ND 16

01:30 ND ND 20

01:40 ND ND 16

01:50 ND ND 16

02:00 ND ND 16

02:10 ND ND 17

02:20 ND ND 18

02:30 ND ND 16

02:40 ND ND 20

02:50 ND ND 20

03:00 ND ND 19

03:10 ND ND 18

03:20 ND ND 16

03:30 ND ND 13

03:40 ND ND 13

03:50 ND ND 14

04:00 ND ND 13

04:10 ND ND 15

04:20 ND ND 17

04:30 ND ND 21

04:40 ND ND 21

04:50 ND ND 21

05:00 ND ND 20

05:10 ND ND 18

05:20 ND ND 15

05:30 ND ND 14

05:40 ND ND 14

05:50 ND ND 14

06:00 ND ND 17

06:10 ND ND 16

06:20 ND ND 20

06:30 ND ND 18

06:40 ND ND 17

06:50 ND ND 14

07:00 ND ND 13

07:10 ND ND 12

07:20 ND ND 12

07:30 ND ND 14

07:40 ND ND 14

07:50 ND ND 15

08:00 ND ND 16

08:10 ND ND 19

08:20 ND ND 18

08:30 ND ND 17

08:40 ND ND 19

08:50 ND ND 18

09:00 ND ND 16

09:10 ND ND 16

09:20 ND ND 16

09:30 ND ND 17

09:40 ND ND 15

09:50 ND ND 15

10:00 ND ND 16

10:10 ND ND 15

10:20 ND ND 17

10:30 ND ND 18

10:40 ND ND 18

10:50 ND ND 17

11:00 ND ND 16

11:10 ND ND 17

11:20 ND ND 16

11:30 ND ND 15

11:40 ND ND 16

11:50 ND ND 20

12:00 ND ND 21

12:10 ND ND 22

12:20 ND ND 21

12:30 ND ND 21

12:40 ND ND 20

12:50 ND ND 20

13:00 ND ND 20

13:10 ND ND 18

13:20 ND ND 17

13:30 ND ND 16

13:40 ND ND 16

13:50 ND ND 13

14:00 ND ND 16

14:10 ND ND 17

14:20 ND ND 18

14:30 ND ND 15

14:40 ND ND 19

14:50 ND ND 19

15:00 ND ND 16

15:10 ND ND 14

15:20 ND ND 15

15:30 ND ND 17

15:40 ND ND 15

15:50 ND ND 16

16:00 ND ND 17

16:10 ND ND 22

16:20 ND ND 22

16:30 ND ND 21

16:40 ND ND 22

16:50 ND ND 21

17:00 ND ND 17

17:10 ND ND 16

17:20 ND ND 17

17:30 ND ND 17

17:40 ND ND 18

17:50 ND ND 17

18:00 ND ND 18

18:10 ND ND 18

18:20 ND ND 15

18:30 ND ND 17

18:40 ND ND 16

18:50 ND ND 19

19:00 ND ND 19

19:10 ND ND 17

19:20 ND ND 18

19:30 ND ND 18

19:40 ND ND 17

19:50 ND ND 17

20:00 ND ND 19

20:10 ND ND 23

20:20 ND ND 24

20:30 ND ND 24

20:40 ND ND 24

20:50 ND ND 23

21:00 ND ND 21

21:10 ND ND 18

21:20 ND ND 17

21:30 ND ND 16

21:40 ND ND 16

21:50 ND ND 15

22:00 ND ND 14

22:10 ND ND 16

22:20 ND ND 14

22:30 ND ND 16

22:40 ND ND 17

22:50 ND ND 19

23:00 ND ND 19

23:10 ND ND 19

23:20 ND ND 18

23:30 ND ND 20

23:40 ND ND 18

23:50 ND ND 17

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