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15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 21

00:20 ND ND 22

00:30 ND ND 22

00:40 ND ND 22

00:50 ND ND 21

01:00 ND ND 24

01:10 ND ND 22

01:20 ND ND 21

01:30 ND ND 19

01:40 ND ND 18

01:50 ND ND 19

02:00 ND ND 17

02:10 ND ND 17

02:20 ND ND 17

02:30 ND ND 16

02:40 ND ND 17

02:50 ND ND 15

03:00 ND ND 14

03:10 ND ND 12

03:20 ND ND 11

03:30 ND ND 12

03:40 ND ND 12

03:50 ND ND 14

04:00 ND ND 15

04:10 ND ND 16

04:20 ND ND 17

04:30 ND ND 18

04:40 ND ND 19

04:50 ND ND 20

05:00 ND ND 18

05:10 ND ND 20

05:20 ND ND 22

05:30 ND ND 21

05:40 ND ND 20

05:50 ND ND 18

06:00 ND ND 20

06:10 ND ND 20

06:20 ND ND 18

06:30 ND ND 20

06:40 ND ND 21

06:50 ND ND 21

07:00 ND ND 20

07:10 ND ND 18

07:20 ND ND 17

07:30 ND ND 16

07:40 ND ND 15

07:50 ND ND 17

08:00 ND ND 17

08:10 ND ND 18

08:20 ND ND 20

08:30 ND ND 22

08:40 ND ND 23

08:50 ND ND 18

09:00 ND ND 16

09:10 ND ND 19

09:20 ND ND 19

09:30 ND ND 17

09:40 ND ND 17

09:50 ND ND 18

10:00 ND ND 21

10:10 ND ND 19

10:20 ND ND 18

10:30 ND ND 18

10:40 ND ND 21

10:50 ND ND 22

11:00 ND ND 25

11:10 ND ND 22

11:20 ND ND 23

11:30 ND ND 22

11:40 ND ND 20

11:50 ND ND 20

12:00 ND ND 15

12:10 ND ND 16

12:20 ND ND 17

12:30 ND ND 18

12:40 ND ND 18

12:50 ND ND 18

13:00 ND ND 20

13:10 ND ND 22

13:20 ND ND 22

13:30 ND ND 24

13:40 ND ND 25

13:50 ND ND 24

14:00 ND ND 25

14:10 ND ND 21

14:20 ND ND 21

14:30 ND ND 18

14:40 ND ND 15

14:50 ND ND 17

15:00 ND ND 17

15:10 ND ND 17

15:20 ND ND 17

15:30 ND ND 16

15:40 ND ND 17

15:50 ND ND 14

16:00 ND ND 10

16:10 ND ND 12

16:20 ND ND 14

16:30 ND ND 19

16:40 ND ND 21

16:50 ND ND 24

17:00 ND ND 26

17:10 ND ND 23

17:20 ND ND 23

17:30 ND ND 18

17:40 ND ND 17

17:50 ND ND 14

18:00 ND ND 12

18:10 ND ND 16

18:20 ND ND 15

18:30 ND ND 17

18:40 ND ND 17

18:50 ND ND 18

19:00 ND ND 19

19:10 ND ND 18

19:20 ND ND 19

19:30 ND ND 17

19:40 ND ND 17

19:50 ND ND 19

20:00 ND ND 18

20:10 ND ND 20

20:20 ND ND 20

20:30 ND ND 22

20:40 ND ND 25

20:50 ND ND 25

21:00 ND ND 26

21:10 ND ND 25

21:20 ND ND 23

21:30 ND ND 21

21:40 ND ND 18

21:50 ND ND 16

22:00 ND ND 14

22:10 ND ND 12

22:20 ND ND 14

22:30 ND ND 15

22:40 ND ND 16

22:50 ND ND 17

23:00 ND ND 20

23:10 ND ND 20

23:20 ND ND 21

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	18
00:10	ND	ND	21
00:20	ND	ND	22
00:30	ND	ND	22
00:40	ND	ND	22
00:50	ND	ND	21
01:00	ND	ND	24
01:10	ND	ND	22
01:20	ND	ND	21
01:30	ND	ND	19
01:40	ND	ND	18
01:50	ND	ND	19
02:00	ND	ND	17
02:10	ND	ND	17
02:20	ND	ND	17
02:30	ND	ND	16
02:40	ND	ND	17
02:50	ND	ND	15
03:00	ND	ND	14
03:10	ND	ND	12
03:20	ND	ND	11
03:30	ND	ND	12
03:40	ND	ND	12
03:50	ND	ND	14
04:00	ND	ND	15
04:10	ND	ND	16
04:20	ND	ND	17
04:30	ND	ND	18
04:40	ND	ND	19
04:50	ND	ND	20
05:00	ND	ND	18
05:10	ND	ND	20
05:20	ND	ND	22
05:30	ND	ND	21
05:40	ND	ND	20
05:50	ND	ND	18
06:00	ND	ND	20
06:10	ND	ND	20
06:20	ND	ND	18
06:30	ND	ND	20
06:40	ND	ND	21
06:50	ND	ND	21
07:00	ND	ND	20
07:10	ND	ND	18
07:20	ND	ND	17
07:30	ND	ND	16
07:40	ND	ND	15
07:50	ND	ND	17
08:00	ND	ND	17
08:10	ND	ND	18
08:20	ND	ND	20
08:30	ND	ND	22
08:40	ND	ND	23
08:50	ND	ND	18
09:00	ND	ND	16
09:10	ND	ND	19
09:20	ND	ND	19
09:30	ND	ND	17
09:40	ND	ND	17
09:50	ND	ND	18
10:00	ND	ND	21
10:10	ND	ND	19
10:20	ND	ND	18
10:30	ND	ND	18
10:40	ND	ND	21
10:50	ND	ND	22
11:00	ND	ND	25
11:10	ND	ND	22
11:20	ND	ND	23
11:30	ND	ND	22
11:40	ND	ND	20
11:50	ND	ND	20
12:00	ND	ND	15
12:10	ND	ND	16
12:20	ND	ND	17
12:30	ND	ND	18
12:40	ND	ND	18
12:50	ND	ND	18
13:00	ND	ND	20
13:10	ND	ND	22
13:20	ND	ND	22
13:30	ND	ND	24
13:40	ND	ND	25
13:50	ND	ND	24
14:00	ND	ND	25
14:10	ND	ND	21
14:20	ND	ND	21
14:30	ND	ND	18
14:40	ND	ND	15
14:50	ND	ND	17
15:00	ND	ND	17
15:10	ND	ND	17
15:20	ND	ND	17
15:30	ND	ND	16
15:40	ND	ND	17
15:50	ND	ND	14
16:00	ND	ND	10
16:10	ND	ND	12
16:20	ND	ND	14
16:30	ND	ND	19
16:40	ND	ND	21
16:50	ND	ND	24
17:00	ND	ND	26
17:10	ND	ND	23
17:20	ND	ND	23
17:30	ND	ND	18
17:40	ND	ND	17
17:50	ND	ND	14
18:00	ND	ND	12
18:10	ND	ND	16
18:20	ND	ND	15
18:30	ND	ND	17
18:40	ND	ND	17
18:50	ND	ND	18
19:00	ND	ND	19
19:10	ND	ND	18
19:20	ND	ND	19
19:30	ND	ND	17
19:40	ND	ND	17
19:50	ND	ND	19
20:00	ND	ND	18
20:10	ND	ND	20
20:20	ND	ND	20
20:30	ND	ND	22
20:40	ND	ND	25
20:50	ND	ND	25
21:00	ND	ND	26
21:10	ND	ND	25
21:20	ND	ND	23
21:30	ND	ND	21
21:40	ND	ND	18
21:50	ND	ND	16
22:00	ND	ND	14
22:10	ND	ND	12
22:20	ND	ND	14
22:30	ND	ND	15
22:40	ND	ND	16
22:50	ND	ND	17
23:00	ND	ND	20
23:10	ND	ND	20
23:20	ND	ND	21
23:30	ND	ND	20
23:40	ND	ND	18
23:50	ND	ND	17