translate English to French: The first was to sample in detail soil profiles where U concentrations were relatively high but where contamination was thought to be solely atmospheric.
La premiÃ¨re consistait Ã Ã©chantillonner en dÃ©tail les profils pÃ©dologiques connus pour leurs concentrations plutÃ´t Ã©levÃ©es d'uranium et dont on soupÃ§onne que la contamination pourrait Ãªtre uniquement d'origine atmosphÃ©rique.