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05月19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 16

00:20 ND ND 17

00:30 ND ND 13

00:40 ND ND 13

00:50 ND ND 14

01:00 ND ND 14

01:10 ND ND 16

01:20 ND ND 17

01:30 ND ND 18

01:40 ND ND 19

01:50 ND ND 18

02:00 ND ND 20

02:10 ND ND 18

02:20 ND ND 17

02:30 ND ND 15

02:40 ND ND 19

02:50 ND ND 17

03:00 ND ND 15

03:10 ND ND 17

03:20 ND ND 16

03:30 ND ND 17

03:40 ND ND 10

03:50 ND ND 9.5

04:00 ND ND 9.7

04:10 ND ND ND

04:20 ND ND 12

04:30 ND ND 11

04:40 ND ND 14

04:50 ND ND 15

05:00 ND ND 16

05:10 ND ND 17

05:20 ND ND 16

05:30 ND ND 17

05:40 ND ND 17

05:50 ND ND 19

06:00 ND ND 19

06:10 ND ND 19

06:20 ND ND 18

06:30 ND ND 21

06:40 ND ND 22

06:50 ND ND 21

07:00 ND ND 20

07:10 ND ND 18

07:20 ND ND 18

07:30 ND ND 18

07:40 ND ND 18

07:50 ND ND 20

08:00 ND ND 19

08:10 ND ND 19

08:20 ND ND 18

08:30 ND ND 17

08:40 ND ND 14

08:50 ND ND 14

09:00 ND ND 14

09:10 ND ND 18

09:20 ND ND 21

09:30 ND ND 19

09:40 ND ND 19

09:50 ND ND 18

10:00 ND ND 17

10:10 ND ND 15

10:20 ND ND 14

10:30 ND ND 15

10:40 ND ND 17

10:50 ND ND 18

11:00 ND ND 19

11:10 ND ND 20

11:20 ND ND 18

11:30 ND ND 20

11:40 ND ND 18

11:50 ND ND 18

12:00 ND ND 16

12:10 ND ND 18

12:20 ND ND 20

12:30 ND ND 18

12:40 ND ND 17

12:50 ND ND 16

13:00 ND ND 16

13:10 ND ND 14

13:20 ND ND 12

13:30 ND ND 11

13:40 ND ND 12

13:50 ND ND 10

14:00 ND ND 13

14:10 ND ND 14

14:20 ND ND 16

14:30 ND ND 18

14:40 ND ND 19

14:50 ND ND 20

15:00 ND ND 19

15:10 ND ND 18

15:20 ND ND 16

15:30 ND ND 15

15:40 ND ND 16

15:50 - - -

16:00 - - -

16:10 ND ND 16

16:20 ND ND 17

16:30 ND ND 16

16:40 ND ND 16

16:50 ND ND 14

17:00 ND ND 13

17:10 ND ND 14

17:20 ND ND 14

17:30 ND ND 13

17:40 ND ND 13

17:50 ND ND 14

18:00 ND ND 13

18:10 ND ND 13

18:20 ND ND 12

18:30 ND ND 13

18:40 ND ND 14

18:50 ND ND 14

19:00 ND ND 17

19:10 ND ND 17

19:20 ND ND 21

19:30 ND ND 23

19:40 ND ND 21

19:50 ND ND 22

20:00 ND ND 19

20:10 ND ND 18

20:20 ND ND 18

20:30 ND ND 19

20:40 ND ND 19

20:50 ND ND 18

21:00 ND ND 21

21:10 ND ND 20

21:20 ND ND 20

21:30 ND ND 18

21:40 ND ND 20

21:50 ND ND 21

22:00 ND ND 20

22:10 ND ND 20

22:20 ND ND 18

22:30 ND ND 19

22:40 ND ND 18

22:50 ND ND 17

23:00 ND ND 18

23:10 ND ND 20

23:20 ND ND 22

23:30 ND ND 19

23:40 ND ND 16

23:50 ND ND 14

計測時刻	Cs137	Cs134	全β
00:00	ND	ND	18
00:10	ND	ND	16
00:20	ND	ND	17
00:30	ND	ND	13
00:40	ND	ND	13
00:50	ND	ND	14
01:00	ND	ND	14
01:10	ND	ND	16
01:20	ND	ND	17
01:30	ND	ND	18
01:40	ND	ND	19
01:50	ND	ND	18
02:00	ND	ND	20
02:10	ND	ND	18
02:20	ND	ND	17
02:30	ND	ND	15
02:40	ND	ND	19
02:50	ND	ND	17
03:00	ND	ND	15
03:10	ND	ND	17
03:20	ND	ND	16
03:30	ND	ND	17
03:40	ND	ND	10
03:50	ND	ND	9.5
04:00	ND	ND	9.7
04:10	ND	ND	ND
04:20	ND	ND	12
04:30	ND	ND	11
04:40	ND	ND	14
04:50	ND	ND	15
05:00	ND	ND	16
05:10	ND	ND	17
05:20	ND	ND	16
05:30	ND	ND	17
05:40	ND	ND	17
05:50	ND	ND	19
06:00	ND	ND	19
06:10	ND	ND	19
06:20	ND	ND	18
06:30	ND	ND	21
06:40	ND	ND	22
06:50	ND	ND	21
07:00	ND	ND	20
07:10	ND	ND	18
07:20	ND	ND	18
07:30	ND	ND	18
07:40	ND	ND	18
07:50	ND	ND	20
08:00	ND	ND	19
08:10	ND	ND	19
08:20	ND	ND	18
08:30	ND	ND	17
08:40	ND	ND	14
08:50	ND	ND	14
09:00	ND	ND	14
09:10	ND	ND	18
09:20	ND	ND	21
09:30	ND	ND	19
09:40	ND	ND	19
09:50	ND	ND	18
10:00	ND	ND	17
10:10	ND	ND	15
10:20	ND	ND	14
10:30	ND	ND	15
10:40	ND	ND	17
10:50	ND	ND	18
11:00	ND	ND	19
11:10	ND	ND	20
11:20	ND	ND	18
11:30	ND	ND	20
11:40	ND	ND	18
11:50	ND	ND	18
12:00	ND	ND	16
12:10	ND	ND	18
12:20	ND	ND	20
12:30	ND	ND	18
12:40	ND	ND	17
12:50	ND	ND	16
13:00	ND	ND	16
13:10	ND	ND	14
13:20	ND	ND	12
13:30	ND	ND	11
13:40	ND	ND	12
13:50	ND	ND	10
14:00	ND	ND	13
14:10	ND	ND	14
14:20	ND	ND	16
14:30	ND	ND	18
14:40	ND	ND	19
14:50	ND	ND	20
15:00	ND	ND	19
15:10	ND	ND	18
15:20	ND	ND	16
15:30	ND	ND	15
15:40	ND	ND	16
15:50	-	-	-
16:00	-	-	-
16:10	ND	ND	16
16:20	ND	ND	17
16:30	ND	ND	16
16:40	ND	ND	16
16:50	ND	ND	14
17:00	ND	ND	13
17:10	ND	ND	14
17:20	ND	ND	14
17:30	ND	ND	13
17:40	ND	ND	13
17:50	ND	ND	14
18:00	ND	ND	13
18:10	ND	ND	13
18:20	ND	ND	12
18:30	ND	ND	13
18:40	ND	ND	14
18:50	ND	ND	14
19:00	ND	ND	17
19:10	ND	ND	17
19:20	ND	ND	21
19:30	ND	ND	23
19:40	ND	ND	21
19:50	ND	ND	22
20:00	ND	ND	19
20:10	ND	ND	18
20:20	ND	ND	18
20:30	ND	ND	19
20:40	ND	ND	19
20:50	ND	ND	18
21:00	ND	ND	21
21:10	ND	ND	20
21:20	ND	ND	20
21:30	ND	ND	18
21:40	ND	ND	20
21:50	ND	ND	21
22:00	ND	ND	20
22:10	ND	ND	20
22:20	ND	ND	18
22:30	ND	ND	19
22:40	ND	ND	18
22:50	ND	ND	17
23:00	ND	ND	18
23:10	ND	ND	20
23:20	ND	ND	22
23:30	ND	ND	19
23:40	ND	ND	16
23:50	ND	ND	14