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Internal doses of French adult population linked to the intake of radionuclides from the decay-chains of uranium and thorium by foodstuffs ingestion


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​Radioprotection / Volume 50, n°2, pages 117-121, avril-juin 2015

Type de document > *Article de revue

Mots clés >

Unité de recherche > IRSN/DEI/SESURE/LERCM

Auteurs > RENAUD Philippe, PARACHE Vanessa, ROUSSEL-DEBET Sylvie

Date de publication > 19/03/2015

Résumé

​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.