Volume 50, Number 2, Avril-Juin 2015
|Page(s)||117 - 121|
|Published online||19 March 2015|
Internal doses of French adult population linked to the intake of radionuclides from the decay-chains of uranium and thorium by foodstuffs ingestion
IRSN, BP3, 13108
Accepted: 20 November 2014
This study provides the first dose assessment to the French adult population due to the intake of radionuclides from the decay chains of uranium and thorium by foodstuff ingestion (water consumption excepted). This dose varies widely with the consumption of seafood, from less than 200 μSv.y-1 for people who do not consume shellfish or crustaceans at all, to more than 2,000 μSv.y-1 for the biggest consumers (about 150 kg.y-1 according to specific dietary surveys carried out along the French seaside). For moderate consumers of seafood (around 4.6 kg.y-1), who probably represent a major part of the population, this internal dose would be around 330 μSv.y-1. This variable consumption of seafood overshadows all the other causes of variability of these internal dose estimates.
Key words: ingestion doses / radionuclides of uranium and thorium decay-chains
© EDP Sciences, 2015
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