Evaluation of radionuclide concentrations in foodstuffs is of great concern owing to the potential radiological hazards to human health. This study was carried out to assess the radionuclide concentrations of ^40K, ^1...Evaluation of radionuclide concentrations in foodstuffs is of great concern owing to the potential radiological hazards to human health. This study was carried out to assess the radionuclide concentrations of ^40K, ^134Cs, ^137Cs, ^131I, ^90Sr, ^239pu, in selected foodstuffs, in order to assess the effects of the elevated levels of radionuclides concentration in environmental media after the FDNPS （Fukushima Daiichi Nuclear Power Station） accident on imported food. HPGe （high purity germanium） detector based spectrometry system coupled with multi-channel analyzer was used for the assessment. The mean concentrations of ^40K, ^134Cs, ^137Cs, ^131I, ^90Sr, ^239pu, were found to be 50.1 ± 2.44 Bq/Kg, 109.6 ± 0.141 Bq/Kg, 134.2 ± 0.027 Bq/Kg, 2.57 ± 0.019 Bq/Kg, 0.59 ± 0.03 Bq/Kg, 0.160 ± 0.033 Bq/Kg, and 0.227 ± 0.021 Bq/Kg respectively. The analysis showed that the radioactivity levels of ^241Am, ^134Cs and ^137Cs were found to be relatively low and within the acceptable levels.展开更多
文摘Evaluation of radionuclide concentrations in foodstuffs is of great concern owing to the potential radiological hazards to human health. This study was carried out to assess the radionuclide concentrations of ^40K, ^134Cs, ^137Cs, ^131I, ^90Sr, ^239pu, in selected foodstuffs, in order to assess the effects of the elevated levels of radionuclides concentration in environmental media after the FDNPS （Fukushima Daiichi Nuclear Power Station） accident on imported food. HPGe （high purity germanium） detector based spectrometry system coupled with multi-channel analyzer was used for the assessment. The mean concentrations of ^40K, ^134Cs, ^137Cs, ^131I, ^90Sr, ^239pu, were found to be 50.1 ± 2.44 Bq/Kg, 109.6 ± 0.141 Bq/Kg, 134.2 ± 0.027 Bq/Kg, 2.57 ± 0.019 Bq/Kg, 0.59 ± 0.03 Bq/Kg, 0.160 ± 0.033 Bq/Kg, and 0.227 ± 0.021 Bq/Kg respectively. The analysis showed that the radioactivity levels of ^241Am, ^134Cs and ^137Cs were found to be relatively low and within the acceptable levels.
