radioactivity survey map, fukushima daiichi nuclear power station … · 2013. 7. 22. ·...

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Radioactivity survey map, Fukushima Daiichi Nuclear Power Station (5:00 PM, February 8th, 2012) Unit 1 R/B Unit 2 R/B Unit 3 R/B Unit 4 R/B Unit: mSv/h 7 5.5 0.6 1.8 0.2 2 0.4 0.4 1.0 1.5 Water transfer piping 120(surface) 11(ambient) Water transfer piping 100(surface) 17(ambient) Water transfer piping 80(surface) 25(ambient) 2.1 0.8 Measured in July 2011 70~ 100 SGTS pipes of Unit 1,2 >10,000 Measured in October 2011 1.4 4.5 0.2 4 1.8 0.3 0.6 0.36 0.3 41 8.0 2.0 4.0 4.1 0.25 1.4 0.6 0.6 0.6 011 Measured in November 2011 Measured in December 2011 0.5 1.5 1.4 Measured in January 2012 0.6 0.6 0.6 (Rooftop) Measured in Feb. 2, 2012 0.21 0.25 0.3 0.5 0.8 1.5 1.2 0.7 1.8 0.9 0.3 Measured in Feb. 7, 2012 0.08 0.10 0.06 0.15 0.12 0.19 0.25 0.60 0.70 1.20 1.50 0.40 0.40 0.40 Upper part of reclaimed vertical shaft 4.60 0.25 0.35 0.08 0.07 0.05 Measured between 10:30~14:00 Feb. 8 in 2012 Water transfer piping 2.7(surface) 1.5(ambient) Water transfer piping 80(surface) 7(ambient) 1.0 0.10 0.30 Water transfer piping 1.1(ambient) 0.06 0.4 Water transfer piping 160(surface) 18(ambient) 0.07 0.08 Water transfer piping 0.1(ambient) 0.08 Water transfer piping 5.5(surface) 1.5(ambient) 0.05 Water transfer piping 15(surface) 1.6(ambient)

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Page 1: Radioactivity survey map, Fukushima Daiichi Nuclear Power Station … · 2013. 7. 22. · Radioactivity survey map, Fukushima Daiichi Nuclear Power Station (5:00 PM, February 8th,

Radioactivity survey map, Fukushima Daiichi Nuclear Power Station (5:00 PM, February 8th, 2012)

Unit 1R/B Unit 2

R/BUnit 3R/B

Unit 4R/B

Unit: mSv/h

7

5.5

0.6

1.8

0.2

2

0.4

0.4

1.0

1.5

Water transfer piping

120(surface)11(ambient)

Water transfer piping

100(surface)17(ambient)

Water transfer piping

80(surface)25(ambient)

2.1 0.8

Measured in July 2011

70~100

SGTS pipes of Unit 1,2>10,000

Measured in October 2011

1.44.5

0.2

4

1.8

0.3

0.60.36

0.3

41

8.0

2.0 4.0

4.1

0.25

1.40.6

0.60.6

011

Measured in November 2011

Measured inDecember 2011

0.5

1.5

1.4

Measured in January 2012

0.6 0.6

0.6

(Rooftop)

Measured in Feb. 2, 2012

0.21

0.25 0.3 0.5

0.8

1.5

1.2

0.7

1.8 0.9 0.3

Measured in Feb. 7, 2012

0.08

0.10

0.060.15

0.12 0.19

0.25

0.60

0.70

1.20

1.50

0.40

0.40

0.40

Upper part of reclaimed

vertical shaft4.60

0.25

0.35

0.08 0.07 0.05

Measured between

10:30~14:00Feb. 8 in 2012

Water transfer piping

2.7(surface)1.5(ambient)

Water transfer piping

80(surface)7(ambient)

1.0

0.100.30

Water transfer piping

1.1(ambient)

0.06

0.4

Water transfer piping

160(surface)18(ambient)

0.07

0.08

Water transfer piping

0.1(ambient)

0.08

Water transfer piping

5.5(surface)1.5(ambient)

0.05

Water transfer piping15(surface)1.6(ambient)