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Canadian Journal of Public Health

, Volume 89, Supplement 1, pp S22–S27 | Cite as

L’exposition prénatale des enfants canadiens aux biphényles polychlorés et au mercure

  • Gina MuckleEmail author
  • Éric Dewailly
  • Pierre Ayotte
Article

Abrégé

Cet article présente l’exposition aux contaminants de l’environnement de sous-groupes de la population canadienne, considérés à risque en raison de leurs habitudes alimentaires. Les concentrations de BPC et de mercure sont mesurées dans le sang du cordon ombilical de nouveau-nés provenant de plusieurs groupes autochtones, d’une population maritime et de la population générale. Les concentrations moyennes d’Aroclor 1260 varient de 0,3 à 2,0 μg/L et sont nettement les plus élevées chez les Inuits du Nunavik et de Baffin et chez les Montagnais du Québec. Elles dépassent chez les nouveau-nés de ces groupes le seuil au-delà duquel des effets cognitifs sont attendus. Les concentrations moyennes de mercure varient de 1,0 à 14,2 μg/l et les Inuits du Nunavik et des T.N.-O. sont les plus exposés. Une proportion d’Inuits du Nunavik et des T.N.-O se situe au-delà des concentrations critiques pour l’apparition d’effets neurologiques. La variation de l’exposition témoigne de différences nutritionnelles entre les différents sousgroupes canadiens.

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Copyright information

© The Canadian Public Health Association 1998

Authors and Affiliations

  1. 1.Département de médecine sociale et préventiveUniversité LavalCanada
  2. 2.Équipe santé et environnementCentre de santé publique de QuébecBeauportCanada

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