Unit 1R/B Unit 2
R/BUnit 3
R/BUnit 4
R/B
Unit: mSv/h
2.0
0.28
0.70
0.055
0.35
0.32
Transfer pipe
1.5(Surface)1.0(Atmosph
ere )
Transfer pipe
1.2(Surface)0.80(Atmosp
here )Transfer pipe0.10(Surface)0.060(Atmosp
here )Transfer pipe80(Surface)
10(Atmosphere )
Transfer pipe0.18(Surface)0.18(Atmosph
ere )
Transfer pipe0.35(Surface)
0.065(Atmosphere )
0.15
0.10
July, 2011
70~100
Unit 1& 2 SGTS pipe
>10,000
October, 2012
0.26
0.30
0.060
0.21
0.10
0.90
0.65
0.170.25
0.38
0.17
0.20
0.050
0.25 0.30 0.20
June, 2012
July, 2012
0.25
0.4
1.3
0.50
0.20
0.50(Rooftop)
1.0
0.20
0.300.05 0.43
0.24
1.3
0.500.60
0.21
0.10
0.20 0.20
0.60
1.0 0.7 0.20
November, 2012
December, 2012
March, 2013
0.019
0.050 0.018
0.085
0.0110.026
0.18
0.050
0.040
0.15
0.150.3
0.80.3
1.30.200.27
Upper part of concrete-filed vertical shaft
0.25(after gravel installation)
0.14
0.10
0.10
0.040
0.0900.050
0.20
0.90
1.0
1.0
0.40
0.092
0.0600.470.085
0.090
0.25
0.55
0.026
0.12
0.068
0.20
2.5
0.0800.20
0.11
June, 2013
0.35
July, 2013
0.20
2.02.5
4.0
Atmosphere 1.8Ground surface 8.5
1.5
Atmosphere 1.7Ground surface 8.5
1.0
September, 2013November, 2013
0.4
In front of the door of carry-in entrance
3.5
2.7
0.0450.35
0.050
0.045
0.085
0.0550.080
0.050
April, 2014
0.030
0.050
0.050
0.026
0.0250.050
0.040
0.050 0.080 0.20
July, 2014June, 2014
0.11
September, 2014
Fukushima Daiichi NPS Survey Map ( As of 5:00 PM on September 9, 2014)
Bottom of side ditch
30(Surface)1.3 (Atmosphere)