Table 3 134Cs/137Cs radioactivity ratio in brown rice and paddy field soil in the southernmost section of Minamisoma City*1.

From: Evaluation of the cause of unexplained radiocaesium contamination of brown rice in Fukushima in 2013 using autoradiography and gamma-ray spectrometry

Year

Sample ID

Brown rice

Paddy field soil

HG*2

Average

2013

MSG1

0.996 ± 0.010

—

0.912 ± 0.011

MSG4

0.990 ± 0.011

—

0.923 ± 0.012

MSG7

0.999 ± 0.011

—

0.914 ± 0.009

MSG8

1.017 ± 0.009

—

0.908 ± 0.009

MSG11

1.004 ± 0.009

—

0.940 ± 0.009

MSG14

1.007 ± 0.010

—

0.926 ± 0.009

MSG17

1.004 ± 0.011

—

0.921 ± 0.010

2014

MSG38

—

0.938 ± 0.009

0.919 ± 0.009

MSG39

—

0.910 ± 0.011

0.885 ± 0.008

MSG41

—

0.937 ± 0.009

0.936 ± 0.009

  1. *1Ratio value ± uncertainties calculated by means of propagation of counting errors. The 134Cs/137Cs radioactivity ratios of the samples were corrected to the values on 11 March 2011.
  2. *2HG: highly contaminated grains.
Back to article page