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07月18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 15

00:10 ND ND 14

00:20 ND ND 14

00:30 ND ND 16

00:40 ND ND 17

00:50 ND ND 17

01:00 ND ND 17

01:10 ND ND 18

01:20 ND ND 17

01:30 ND ND 14

01:40 ND ND 14

01:50 ND ND 15

02:00 ND ND 17

02:10 ND ND 16

02:20 ND ND 21

02:30 ND ND 24

02:40 ND ND 23

02:50 ND ND 18

03:00 ND ND 16

03:10 ND ND 16

03:20 ND ND 15

03:30 ND ND 13

03:40 ND ND 11

03:50 ND ND 12

04:00 ND ND 12

04:10 ND ND 14

04:20 ND ND 11

04:30 ND ND 9.9

04:40 ND ND 10

04:50 ND ND 8.8

05:00 ND ND 8.6

05:10 ND ND ND

05:20 ND ND ND

05:30 ND ND ND

05:40 ND ND 9.0

05:50 ND ND 12

06:00 ND ND 14

06:10 ND ND 15

06:20 ND ND 14

06:30 ND ND 16

06:40 ND ND 14

06:50 ND ND 13

07:00 ND ND 14

07:10 ND ND 14

07:20 ND ND 14

07:30 ND ND 12

07:40 ND ND 14

07:50 ND ND 12

08:00 ND ND 9.6

08:10 ND ND 9.0

08:20 ND ND 9.3

08:30 ND ND 12

08:40 ND ND 12

08:50 ND ND 16

09:00 ND ND 16

09:10 ND ND 17

09:20 ND ND 17

09:30 ND ND 15

09:40 ND ND 16

09:50 ND ND 13

10:00 ND ND 14

10:10 ND ND 13

10:20 ND ND 13

10:30 ND ND 13

10:40 ND ND 13

10:50 ND ND 13

11:00 ND ND 13

11:10 ND ND 13

11:20 ND ND 13

11:30 ND ND 14

11:40 ND ND 12

11:50 ND ND 15

12:00 ND ND 16

12:10 ND ND 15

12:20 ND ND 15

12:30 ND ND 13

12:40 ND ND 11

12:50 ND ND 10

13:00 ND ND 9.6

13:10 ND ND 10

13:20 ND ND 16

13:30 ND ND 16

13:40 ND ND 18

13:50 ND ND 17

14:00 ND ND 17

14:10 ND ND 15

14:20 ND ND 13

14:30 ND ND 14

14:40 ND ND 18

14:50 ND ND 20

15:00 ND ND 21

15:10 ND ND 22

15:20 ND ND 18

15:30 ND ND 18

15:40 ND ND 15

15:50 ND ND 13

16:00 ND ND 11

16:10 ND ND 13

16:20 ND ND 15

16:30 ND ND 15

16:40 ND ND 15

16:50 ND ND 13

17:00 ND ND 13

17:10 ND ND 12

17:20 ND ND 11

17:30 ND ND 12

17:40 ND ND 13

17:50 ND ND 14

18:00 ND ND 16

18:10 ND ND 17

18:20 ND ND 17

18:30 ND ND 17

18:40 ND ND 18

18:50 ND ND 17

19:00 ND ND 15

19:10 ND ND 14

19:20 ND ND 16

19:30 ND ND 17

19:40 ND ND 17

19:50 ND ND 16

20:00 ND ND 19

20:10 ND ND 20

20:20 ND ND 15

20:30 ND ND 15

20:40 ND ND 12

20:50 ND ND 14

21:00 ND ND 14

21:10 ND ND 18

21:20 ND ND 19

21:30 ND ND 19

21:40 ND ND 20

21:50 ND ND 20

22:00 ND ND 22

22:10 ND ND 15

22:20 ND ND 17

22:30 ND ND 16

22:40 ND ND 16

22:50 ND ND 18

23:00 ND ND 15

23:10 ND ND 16

23:20 ND ND 15

23:30 ND ND 14

23:40 ND ND 15

23:50 ND ND 12

計測時刻	Cs137	Cs134	全β
00:00	ND	ND	15
00:10	ND	ND	14
00:20	ND	ND	14
00:30	ND	ND	16
00:40	ND	ND	17
00:50	ND	ND	17
01:00	ND	ND	17
01:10	ND	ND	18
01:20	ND	ND	17
01:30	ND	ND	14
01:40	ND	ND	14
01:50	ND	ND	15
02:00	ND	ND	17
02:10	ND	ND	16
02:20	ND	ND	21
02:30	ND	ND	24
02:40	ND	ND	23
02:50	ND	ND	18
03:00	ND	ND	16
03:10	ND	ND	16
03:20	ND	ND	15
03:30	ND	ND	13
03:40	ND	ND	11
03:50	ND	ND	12
04:00	ND	ND	12
04:10	ND	ND	14
04:20	ND	ND	11
04:30	ND	ND	9.9
04:40	ND	ND	10
04:50	ND	ND	8.8
05:00	ND	ND	8.6
05:10	ND	ND	ND
05:20	ND	ND	ND
05:30	ND	ND	ND
05:40	ND	ND	9.0
05:50	ND	ND	12
06:00	ND	ND	14
06:10	ND	ND	15
06:20	ND	ND	14
06:30	ND	ND	16
06:40	ND	ND	14
06:50	ND	ND	13
07:00	ND	ND	14
07:10	ND	ND	14
07:20	ND	ND	14
07:30	ND	ND	12
07:40	ND	ND	14
07:50	ND	ND	12
08:00	ND	ND	9.6
08:10	ND	ND	9.0
08:20	ND	ND	9.3
08:30	ND	ND	12
08:40	ND	ND	12
08:50	ND	ND	16
09:00	ND	ND	16
09:10	ND	ND	17
09:20	ND	ND	17
09:30	ND	ND	15
09:40	ND	ND	16
09:50	ND	ND	13
10:00	ND	ND	14
10:10	ND	ND	13
10:20	ND	ND	13
10:30	ND	ND	13
10:40	ND	ND	13
10:50	ND	ND	13
11:00	ND	ND	13
11:10	ND	ND	13
11:20	ND	ND	13
11:30	ND	ND	14
11:40	ND	ND	12
11:50	ND	ND	15
12:00	ND	ND	16
12:10	ND	ND	15
12:20	ND	ND	15
12:30	ND	ND	13
12:40	ND	ND	11
12:50	ND	ND	10
13:00	ND	ND	9.6
13:10	ND	ND	10
13:20	ND	ND	16
13:30	ND	ND	16
13:40	ND	ND	18
13:50	ND	ND	17
14:00	ND	ND	17
14:10	ND	ND	15
14:20	ND	ND	13
14:30	ND	ND	14
14:40	ND	ND	18
14:50	ND	ND	20
15:00	ND	ND	21
15:10	ND	ND	22
15:20	ND	ND	18
15:30	ND	ND	18
15:40	ND	ND	15
15:50	ND	ND	13
16:00	ND	ND	11
16:10	ND	ND	13
16:20	ND	ND	15
16:30	ND	ND	15
16:40	ND	ND	15
16:50	ND	ND	13
17:00	ND	ND	13
17:10	ND	ND	12
17:20	ND	ND	11
17:30	ND	ND	12
17:40	ND	ND	13
17:50	ND	ND	14
18:00	ND	ND	16
18:10	ND	ND	17
18:20	ND	ND	17
18:30	ND	ND	17
18:40	ND	ND	18
18:50	ND	ND	17
19:00	ND	ND	15
19:10	ND	ND	14
19:20	ND	ND	16
19:30	ND	ND	17
19:40	ND	ND	17
19:50	ND	ND	16
20:00	ND	ND	19
20:10	ND	ND	20
20:20	ND	ND	15
20:30	ND	ND	15
20:40	ND	ND	12
20:50	ND	ND	14
21:00	ND	ND	14
21:10	ND	ND	18
21:20	ND	ND	19
21:30	ND	ND	19
21:40	ND	ND	20
21:50	ND	ND	20
22:00	ND	ND	22
22:10	ND	ND	15
22:20	ND	ND	17
22:30	ND	ND	16
22:40	ND	ND	16
22:50	ND	ND	18
23:00	ND	ND	15
23:10	ND	ND	16
23:20	ND	ND	15
23:30	ND	ND	14
23:40	ND	ND	15
23:50	ND	ND	12