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Synthèse des résultats de la surveillance des micropolluants dans la matière vivante en 1979
TLDR
Au cours de l'annee 1979, la surveillance des niveaux de presence des metaux et micropolluants dans les organismes marins, pratiquee dans le cadre du Reseau national d'Observation, est venue completer les resultats obtenus jusqu'alors dans l'eau de mer and le sediment.Abstract:
Au cours de l'annee 1979, la surveillance des niveaux de presence des metaux et micropolluants dans les organismes marins, pratiquee dans le cadre du Reseau national d'Observation, est venue completer les resultats obtenus jusqu'alors dans l'eau de mer et le sediment. La propriete qu'ont certains organismes marins d'accumuler les metaux toxiques presents a l'etat de traces dans l'eau de mer a ete utilisee pour cerner les teneurs naturelles et celles que l'on peut attribuer a des rejets. La recherche dans ces animaux des composes organochlores et de certains hydrocarbures, qui n'ont pas diorigine naturelle dans le milieu, permet de deceler leur presence dans l'eau a des teneurs tres basses, difficilement accessibles a l'analyse directe. Nous nous sommes donc fixe comme objectif de determiner les teneurs en metaux (Mercure, Plombs Cadmium, Cuivre, Zinc, Fer), hydrocarbures aromatiques totaux,(H.A.T.) et composes organochlores (PCB, DDT, DDE, DDD) dans des mollusques, poissons et crustaces de notre littoral.read more
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