Estimation of internal radiation dose to the adult Asian population from the dietary intakes of two long-lived radionuclides

Journal of Environmental Radioactivity
G V IyengarM S Nguyen

Abstract

Daily dietary intakes of two naturally occurring long-lived radionuclides, 232Th and 238U, were estimated for the adult population living in a number of Asian countries, using highly sensitive analytical methods such as instrumental and radiochemical neutron activation analysis (INAA and RNAA), and inductively coupled plasma mass spectrometry (ICP-MS). The Asian countries that participated in the study were Bangladesh (BGD), China (CPR), India (IND), Japan (JPN), Pakistan (PAK), Philippines (PHI), Republic of Korea (ROK) and Vietnam (VIE). Altogether, these countries represent more than 50% of the world population. The median daily intakes of 232Th ranged between 0.6 and 14.4 mBq, the lowest being for Philippines and the highest for Bangladesh, and daily intakes of 238U ranged between 6.7 and 62.5 mBq, lowest and the highest being for India and China, respectively. The Asian median intakes were obtained as 4.2 mBq for 232Th and 12.7 mBq for 238U. Although the Asian intakes were lower than intakes of 12.3 mBq (3.0 ug) 232Th and 23.6 mBq (1.9 ug) 238U proposed by the International Commission on Radiological Protection (ICRP) for the ICRP Reference Man, they were comparable to the global intake values of 4.6 mBq 232Th and 15.6 mBq...Continue Reading

References

Aug 1, 1992·Health Physics·K ShiraishiH Yamaguchi
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Citations

Oct 13, 2006·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·P AkhterN Ahmad
Feb 24, 2010·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·L NasreddineN Hwalla
Mar 29, 2021·Environmental Science and Pollution Research International·Saptadipa PaulMala Majumdar

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