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
７
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)
