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04月12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 17

00:10 ND ND 19

00:20 ND ND 16

00:30 ND ND 16

00:40 ND ND 16

00:50 ND ND 15

01:00 ND ND 16

01:10 ND ND 17

01:20 ND ND 13

01:30 ND ND 12

01:40 ND ND 13

01:50 ND ND 14

02:00 ND ND 16

02:10 ND ND 12

02:20 ND ND 17

02:30 ND ND 16

02:40 ND ND 16

02:50 ND ND 14

03:00 ND ND 13

03:10 ND ND 15

03:20 ND ND 14

03:30 ND ND 15

03:40 ND ND 16

03:50 ND ND 17

04:00 ND ND 18

04:10 ND ND 20

04:20 ND ND 22

04:30 ND ND 23

04:40 ND ND 22

04:50 ND ND 23

05:00 ND ND 24

05:10 ND ND 25

05:20 ND ND 24

05:30 ND ND 23

05:40 ND ND 24

05:50 ND ND 22

06:00 ND ND 23

06:10 ND ND 21

06:20 ND ND 18

06:30 ND ND 20

06:40 ND ND 17

06:50 ND ND 16

07:00 ND ND 15

07:10 ND ND 18

07:20 ND ND 18

07:30 ND ND 16

07:40 ND ND 17

07:50 ND ND 19

08:00 ND ND 21

08:10 ND ND 19

08:20 ND ND 20

08:30 ND ND 21

08:40 ND ND 21

08:50 ND ND 22

09:00 ND ND 20

09:10 ND ND 20

09:20 ND ND 21

09:30 ND ND 20

09:40 ND ND 22

09:50 ND ND 20

10:00 ND ND 19

10:10 ND ND 22

10:20 ND ND 18

10:30 ND ND 21

10:40 ND ND 20

10:50 ND ND 19

11:00 ND ND 19

11:10 ND ND 18

11:20 ND ND 22

11:30 ND ND 22

11:40 ND ND 22

11:50 ND ND 22

12:00 ND ND 22

12:10 ND ND 21

12:20 ND ND 18

12:30 ND ND 18

12:40 ND ND 20

12:50 ND ND 22

13:00 ND ND 23

13:10 ND ND 23

13:20 ND ND 24

13:30 ND ND 21

13:40 ND ND 17

13:50 ND ND 15

14:00 ND ND 15

14:10 ND ND 14

14:20 ND ND 12

14:30 ND ND 14

14:40 ND ND 17

14:50 ND ND 19

15:00 ND ND 19

15:10 ND ND 18

15:20 ND ND 19

15:30 ND ND 17

15:40 ND ND 15

15:50 ND ND 18

16:00 ND ND 16

16:10 ND ND 18

16:20 ND ND 22

16:30 ND ND 22

16:40 ND ND 23

16:50 ND ND 18

17:00 ND ND 19

17:10 ND ND 21

17:20 ND ND 20

17:30 ND ND 19

17:40 ND ND 19

17:50 ND ND 20

18:00 ND ND 21

18:10 ND ND 20

18:20 ND ND 19

18:30 ND ND 19

18:40 ND ND 18

18:50 ND ND 18

19:00 ND ND 14

19:10 ND ND 14

19:20 ND ND 12

19:30 ND ND 13

19:40 ND ND 11

19:50 ND ND 9.5

20:00 ND ND 10

20:10 ND ND 12

20:20 ND ND 14

20:30 ND ND 18

20:40 ND ND 19

20:50 ND ND 21

21:00 ND ND 22

21:10 ND ND 19

21:20 ND ND 18

21:30 ND ND 15

21:40 ND ND 13

21:50 ND ND 14

22:00 ND ND 12

22:10 ND ND 13

22:20 ND ND 14

22:30 ND ND 14

22:40 ND ND 17

22:50 ND ND 17

23:00 ND ND 18

23:10 ND ND 15

23:20 ND ND 16

23:30 ND ND 17

23:40 ND ND 16

23:50 ND ND 14

計測時刻	Cs137	Cs134	全β
00:00	ND	ND	17
00:10	ND	ND	19
00:20	ND	ND	16
00:30	ND	ND	16
00:40	ND	ND	16
00:50	ND	ND	15
01:00	ND	ND	16
01:10	ND	ND	17
01:20	ND	ND	13
01:30	ND	ND	12
01:40	ND	ND	13
01:50	ND	ND	14
02:00	ND	ND	16
02:10	ND	ND	12
02:20	ND	ND	17
02:30	ND	ND	16
02:40	ND	ND	16
02:50	ND	ND	14
03:00	ND	ND	13
03:10	ND	ND	15
03:20	ND	ND	14
03:30	ND	ND	15
03:40	ND	ND	16
03:50	ND	ND	17
04:00	ND	ND	18
04:10	ND	ND	20
04:20	ND	ND	22
04:30	ND	ND	23
04:40	ND	ND	22
04:50	ND	ND	23
05:00	ND	ND	24
05:10	ND	ND	25
05:20	ND	ND	24
05:30	ND	ND	23
05:40	ND	ND	24
05:50	ND	ND	22
06:00	ND	ND	23
06:10	ND	ND	21
06:20	ND	ND	18
06:30	ND	ND	20
06:40	ND	ND	17
06:50	ND	ND	16
07:00	ND	ND	15
07:10	ND	ND	18
07:20	ND	ND	18
07:30	ND	ND	16
07:40	ND	ND	17
07:50	ND	ND	19
08:00	ND	ND	21
08:10	ND	ND	19
08:20	ND	ND	20
08:30	ND	ND	21
08:40	ND	ND	21
08:50	ND	ND	22
09:00	ND	ND	20
09:10	ND	ND	20
09:20	ND	ND	21
09:30	ND	ND	20
09:40	ND	ND	22
09:50	ND	ND	20
10:00	ND	ND	19
10:10	ND	ND	22
10:20	ND	ND	18
10:30	ND	ND	21
10:40	ND	ND	20
10:50	ND	ND	19
11:00	ND	ND	19
11:10	ND	ND	18
11:20	ND	ND	22
11:30	ND	ND	22
11:40	ND	ND	22
11:50	ND	ND	22
12:00	ND	ND	22
12:10	ND	ND	21
12:20	ND	ND	18
12:30	ND	ND	18
12:40	ND	ND	20
12:50	ND	ND	22
13:00	ND	ND	23
13:10	ND	ND	23
13:20	ND	ND	24
13:30	ND	ND	21
13:40	ND	ND	17
13:50	ND	ND	15
14:00	ND	ND	15
14:10	ND	ND	14
14:20	ND	ND	12
14:30	ND	ND	14
14:40	ND	ND	17
14:50	ND	ND	19
15:00	ND	ND	19
15:10	ND	ND	18
15:20	ND	ND	19
15:30	ND	ND	17
15:40	ND	ND	15
15:50	ND	ND	18
16:00	ND	ND	16
16:10	ND	ND	18
16:20	ND	ND	22
16:30	ND	ND	22
16:40	ND	ND	23
16:50	ND	ND	18
17:00	ND	ND	19
17:10	ND	ND	21
17:20	ND	ND	20
17:30	ND	ND	19
17:40	ND	ND	19
17:50	ND	ND	20
18:00	ND	ND	21
18:10	ND	ND	20
18:20	ND	ND	19
18:30	ND	ND	19
18:40	ND	ND	18
18:50	ND	ND	18
19:00	ND	ND	14
19:10	ND	ND	14
19:20	ND	ND	12
19:30	ND	ND	13
19:40	ND	ND	11
19:50	ND	ND	9.5
20:00	ND	ND	10
20:10	ND	ND	12
20:20	ND	ND	14
20:30	ND	ND	18
20:40	ND	ND	19
20:50	ND	ND	21
21:00	ND	ND	22
21:10	ND	ND	19
21:20	ND	ND	18
21:30	ND	ND	15
21:40	ND	ND	13
21:50	ND	ND	14
22:00	ND	ND	12
22:10	ND	ND	13
22:20	ND	ND	14
22:30	ND	ND	14
22:40	ND	ND	17
22:50	ND	ND	17
23:00	ND	ND	18
23:10	ND	ND	15
23:20	ND	ND	16
23:30	ND	ND	17
23:40	ND	ND	16
23:50	ND	ND	14