[THE PRINCIPAL NATURAL AND ARTIFICIAL RADIOACTIVE SUBSTANCES FOUND IN THE ENVIRONMENT].
D004777:Environment; D011850:Radioactive Waste; D011851:Radioactivity
D011850:Radioactive Waste
RADIOACTIVE WASTE; RADIOACTIVITY
LES PRINCIPALES SUBSTANCES RADIOACTIVES NATURELLES ET ARTIFICIELLES RENCONTR'EES DANS LE MILIEU AMBIANT.