Radiocaesium Activity Concentrations in Potatoes in Croatia after the Chernobyl Accident and Dose Assessment
Title: Radiocaesium Activity Concentrations in Potatoes in Croatia after the Chernobyl Accident and Dose Assessment
Author: Franic, Z. / Petrinec, B. / Marovic, G. / Franic, Z.
Reference: Medical School, University of Zagreb, Zagreb, Croatia, 2007
Keywords: potatoes; 137 Cs; 134 Cs; transfer factor; Chernobyl accident; mathematical model; dose
Abstract: Systematic investigations of 137Cs and 134Cs activity concentrations in potatoes (Solanum tuberosum) for the post-Chernobyl period (1986-2005) in the Republic of Croatia are summarized. The correlation between 137Cs activity concentrations in fallout and potatoes, has been found to be very good, the correlation coefficient being r2=0.88 with P(t) < 0.001 for 18 degrees of freedom. As the radiocaesium levels in potatoes decreased exponentially, the mean residence time of 137Cs in potatoes was estimated by fitting the measured activity concentrations to the exponential curve. The mean residence time was found to be 6.8 +/- 1.1 years, the standard deviation being estimated by the Monte Carlo simulations.
URL: http://arxiv.org/abs/physics/0701205
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