Annual Intake of ^<137>Cs and ^<90>Sr from Ingestion of Main Foodstuffs in Taiwan

概要

論文の詳細を見る
The radioactivities of eight main foodstuffs were investigated during 1985-1994 to evaluate the annual intake from the ingestion of 137Cs and 90Sr for the residents of Taiwan. The evaluation of annual intake was based on the results of radiochemical analysis of 90Sr and gamma-ray spectrometry of 137Cs as well as annual consumption rates of those foodstuffs in Taiwan. The annual intake of 90Sr and 137Cs per capita is 13 and 60Bq, respectively. Among the eight foodstuffs, fruit contributed the most to the annual intake of 90Sr, vegetable second, rice the third and egg the least. For 137Cs, rice contributed the most, then fruit, meat the third and flour the least. Based on the new conversion factors from ICRP 60, the annual committed effective doses of Taiwanese due to the ingestion of radionuclides 90Sr and 137Cs were estimated to be 3.7×10-7 and 7.8×10-7Sv, respectively.
日本保健物理学会の論文