File:MercuryFoodChain-01.png

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English: This figure shows some common sources of mercury, the conversion to toxic methylmercury and the outline of EPA consumption recommendations for certain types of fish based on mercury levels.
The original caption stated: "Mercury from coal fired power plants and other sources travels through the atmosphere and water. Some is changed to methylmercury, which can enter the food chain to be concentrated at each step on that chain. Large old predators like sharks and pike, or scavengers like halibut, hold the greatest concentrations of mercury. The mercury is particularly problematic during development, so these limits here are designed to protect women who might become pregnant and children 12 or younger."
Français : Ce schéma présente (de manière très simplifiée) la cinétique environnementale du mercure émis par quelques sources communes de ce métal, et sa bioconversion en méthylmercure toxique. Il traduit aussi les grandes lignes des recommandations de l'EPA pour certains types de poissons qui bioaccumulent le plus le mercure. Le mercure émis par les centrales électriques au charbon et d'autres sources se déplace via l'atmosphère vers l'eau ; Une partie se transforme (dans les sédiments surtout) en méthylmercure (plus toxique et qui entre facilement dans la chaîne alimentaire où il se concentre à chaque étape de cette chaîne ou pyramide). Ceci explique que les grands prédateurs comme les cachalots, orques, requins, espadons, thons ou les vieux brochet, ou des charognards comme le flétan contiennent les taux de mercure les plus élevés.
Le mercure est particulièrement problématique pour le développement ; c'est pourquoi les limites ici présentées ont été conçues pour protéger les femmes qui pourraient devenir enceintes et les enfants de 12 ans ou moins.
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Original text : From www.groundtruthtrekking.org:

Author Bretwood Higman, Ground Truth Trekking.
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This file, which was originally posted to groundtruthtrekking.org, was reviewed on 14:39, 11 December 2011 (UTC) by reviewer Common Good, who confirmed that it was available there under the stated license on that date.

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  • 2010-04-30 02:38 Moby69 625×728× (119028 bytes) This figure shows some common sources of mercury, the conversion to toxic methylmercury and the outline of EPA consumption recommendations for certain types of fish based on mercury levels. The original caption stated: "Mercury from coal fired power pla

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