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03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 23

00:10 ND ND 22

00:20 ND ND 21

00:30 ND ND 22

00:40 ND ND 21

00:50 ND ND 18

01:00 ND ND 17

01:10 ND ND 17

01:20 ND ND 19

01:30 ND ND 20

01:40 ND ND 20

01:50 ND ND 20

02:00 ND ND 20

02:10 ND ND 20

02:20 ND ND 17

02:30 ND ND 14

02:40 ND ND 14

02:50 ND ND 16

03:00 ND ND 16

03:10 ND ND 15

03:20 ND ND 17

03:30 ND ND 21

03:40 ND ND 22

03:50 ND ND 23

04:00 ND ND 22

04:10 ND ND 23

04:20 ND ND 21

04:30 ND ND 19

04:40 ND ND 19

04:50 ND ND 19

05:00 ND ND 18

05:10 ND ND 17

05:20 ND ND 21

05:30 ND ND 24

05:40 ND ND 22

05:50 ND ND 24

06:00 ND ND 26

06:10 ND ND 27

06:20 ND ND 23

06:30 ND ND 21

06:40 ND ND 23

06:50 ND ND 18

07:00 ND ND 16

07:10 ND ND 17

07:20 ND ND 16

07:30 ND ND 16

07:40 ND ND 14

07:50 ND ND 16

08:00 ND ND 18

08:10 ND ND 19

08:20 ND ND 21

08:30 ND ND 21

08:40 ND ND 22

08:50 ND ND 20

09:00 ND ND 19

09:10 ND ND 22

09:20 ND ND 19

09:30 ND ND 20

09:40 ND ND 22

09:50 ND ND 21

10:00 ND ND 20

10:10 ND ND 16

10:20 ND ND 21

10:30 ND ND 19

10:40 ND ND 17

10:50 ND ND 19

11:00 ND ND 20

11:10 ND ND 22

11:20 ND ND 19

11:30 ND ND 20

11:40 ND ND 21

11:50 ND ND 22

12:00 ND ND 22

12:10 ND ND 24

12:20 ND ND 24

12:30 ND ND 22

12:40 ND ND 23

12:50 ND ND 24

13:00 ND ND 23

13:10 ND ND 20

13:20 ND ND 19

13:30 ND ND 19

13:40 ND ND 14

13:50 ND ND 10

14:00 ND ND 9.2

14:10 ND ND 11

14:20 ND ND 13

14:30 ND ND 14

14:40 ND ND 18

14:50 ND ND 22

15:00 ND ND 23

15:10 ND ND 24

15:20 ND ND 22

15:30 ND ND 22

15:40 ND ND 22

15:50 ND ND 19

16:00 ND ND 21

16:10 ND ND 21

16:20 ND ND 21

16:30 ND ND 21

16:40 ND ND 23

16:50 ND ND 22

17:00 ND ND 22

17:10 ND ND 21

17:20 ND ND 21

17:30 ND ND 22

17:40 ND ND 22

17:50 ND ND 24

18:00 ND ND 23

18:10 ND ND 20

18:20 ND ND 21

18:30 ND ND 22

18:40 ND ND 21

18:50 ND ND 19

19:00 ND ND 20

19:10 ND ND 20

19:20 ND ND 21

19:30 ND ND 19

19:40 ND ND 20

19:50 ND ND 20

20:00 ND ND 19

20:10 ND ND 21

20:20 ND ND 20

20:30 ND ND 19

20:40 ND ND 20

20:50 ND ND 20

21:00 ND ND 21

21:10 ND ND 21

21:20 ND ND 20

21:30 ND ND 22

21:40 ND ND 23

21:50 ND ND 22

22:00 ND ND 21

22:10 ND ND 21

22:20 ND ND 21

22:30 ND ND 18

22:40 ND ND 17

22:50 ND ND 17

23:00 ND ND 20

23:10 ND ND 19

23:20 ND ND 21

23:30 ND ND 21

23:40 ND ND 20

23:50 ND ND 19

計測時刻	Cs137	Cs134	全β
00:00	ND	ND	23
00:10	ND	ND	22
00:20	ND	ND	21
00:30	ND	ND	22
00:40	ND	ND	21
00:50	ND	ND	18
01:00	ND	ND	17
01:10	ND	ND	17
01:20	ND	ND	19
01:30	ND	ND	20
01:40	ND	ND	20
01:50	ND	ND	20
02:00	ND	ND	20
02:10	ND	ND	20
02:20	ND	ND	17
02:30	ND	ND	14
02:40	ND	ND	14
02:50	ND	ND	16
03:00	ND	ND	16
03:10	ND	ND	15
03:20	ND	ND	17
03:30	ND	ND	21
03:40	ND	ND	22
03:50	ND	ND	23
04:00	ND	ND	22
04:10	ND	ND	23
04:20	ND	ND	21
04:30	ND	ND	19
04:40	ND	ND	19
04:50	ND	ND	19
05:00	ND	ND	18
05:10	ND	ND	17
05:20	ND	ND	21
05:30	ND	ND	24
05:40	ND	ND	22
05:50	ND	ND	24
06:00	ND	ND	26
06:10	ND	ND	27
06:20	ND	ND	23
06:30	ND	ND	21
06:40	ND	ND	23
06:50	ND	ND	18
07:00	ND	ND	16
07:10	ND	ND	17
07:20	ND	ND	16
07:30	ND	ND	16
07:40	ND	ND	14
07:50	ND	ND	16
08:00	ND	ND	18
08:10	ND	ND	19
08:20	ND	ND	21
08:30	ND	ND	21
08:40	ND	ND	22
08:50	ND	ND	20
09:00	ND	ND	19
09:10	ND	ND	22
09:20	ND	ND	19
09:30	ND	ND	20
09:40	ND	ND	22
09:50	ND	ND	21
10:00	ND	ND	20
10:10	ND	ND	16
10:20	ND	ND	21
10:30	ND	ND	19
10:40	ND	ND	17
10:50	ND	ND	19
11:00	ND	ND	20
11:10	ND	ND	22
11:20	ND	ND	19
11:30	ND	ND	20
11:40	ND	ND	21
11:50	ND	ND	22
12:00	ND	ND	22
12:10	ND	ND	24
12:20	ND	ND	24
12:30	ND	ND	22
12:40	ND	ND	23
12:50	ND	ND	24
13:00	ND	ND	23
13:10	ND	ND	20
13:20	ND	ND	19
13:30	ND	ND	19
13:40	ND	ND	14
13:50	ND	ND	10
14:00	ND	ND	9.2
14:10	ND	ND	11
14:20	ND	ND	13
14:30	ND	ND	14
14:40	ND	ND	18
14:50	ND	ND	22
15:00	ND	ND	23
15:10	ND	ND	24
15:20	ND	ND	22
15:30	ND	ND	22
15:40	ND	ND	22
15:50	ND	ND	19
16:00	ND	ND	21
16:10	ND	ND	21
16:20	ND	ND	21
16:30	ND	ND	21
16:40	ND	ND	23
16:50	ND	ND	22
17:00	ND	ND	22
17:10	ND	ND	21
17:20	ND	ND	21
17:30	ND	ND	22
17:40	ND	ND	22
17:50	ND	ND	24
18:00	ND	ND	23
18:10	ND	ND	20
18:20	ND	ND	21
18:30	ND	ND	22
18:40	ND	ND	21
18:50	ND	ND	19
19:00	ND	ND	20
19:10	ND	ND	20
19:20	ND	ND	21
19:30	ND	ND	19
19:40	ND	ND	20
19:50	ND	ND	20
20:00	ND	ND	19
20:10	ND	ND	21
20:20	ND	ND	20
20:30	ND	ND	19
20:40	ND	ND	20
20:50	ND	ND	20
21:00	ND	ND	21
21:10	ND	ND	21
21:20	ND	ND	20
21:30	ND	ND	22
21:40	ND	ND	23
21:50	ND	ND	22
22:00	ND	ND	21
22:10	ND	ND	21
22:20	ND	ND	21
22:30	ND	ND	18
22:40	ND	ND	17
22:50	ND	ND	17
23:00	ND	ND	20
23:10	ND	ND	19
23:20	ND	ND	21
23:30	ND	ND	21
23:40	ND	ND	20
23:50	ND	ND	19