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Trend of Radiation in the Environment around Fukushima Daiichi NPS

50

40

[micro Sv/h]

*Change of a monitoring equipment

Fukushima Pref.

5

4

[micro Sv/h]

*Since April 1, monitoring hours in 5 monitoring spots other than

in Utsunomiya City changed from 24-hours to 07:00-20:00.

Tochigi Pref.

30

3

20

*

2

10

In Koriyama City,

there were 2

monitoring spots

during 16:00, 24 –

15:00, 25

1

*

0

March.13(sun)-

19(sat)

27(sun)- 3(sun)-

April.2(sat) 9(sat)

April

20(sun)-

26(sat)

17(sun)-

10(sun)-

16(sat)

0

3/1819

19 20 21

22 23 24 25 26 27 27 28 29 30

31 4/1 1 2

3

4 5

6 7 8 9 10 11 12 13 14 15 16 17 18

March ( 土 )( 日 )

( 土 )( 日 )

April( 土 )( 日 )

( 土 )( 日 )

[micro Sv/h]

5

Ibaraki Pref.

4

3

2

1

0

3/1819

19 20 21

22 23 24 25 26 27 28 29 30

314/1 1 2

3 4

5 6 7 8 9 10 11 12 13 14 15 16 17

March ( 土 )( 日 )

( 土 )( 日 )

April ( 土 )( 日 )

( 土 )( 日 )

Source: MEXT/Fukushima Pref./Ibaraki Pref./Tochigi Pref.

JAIF collects figures based on the official information.

Updated at 15:00 on April 18 (MON)

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