File:Mercurul în lantul trofic.png
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Size of this preview: 515 × 600 pixels. Other resolutions: 206 × 240 pixels | 625 × 728 pixels.
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Română: Mercurul în lanțul trofic. 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. |
| Date | 7 September 2015 (upload date) |
| Source |
Transferred from en.wikipedia to Commons by Shizhao using CommonsHelper. |
| Author |
The original uploader was Moby69 at English Wikipedia.
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Descriere tradusă în limba română. The original can be viewed here: MercuryFoodChain-01.png:  . Modifications made by Ionutzmovie.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:05, 7 September 2015 | | 625 × 728 (110 KB) | Ionutzmovie (talk | contribs) | User created page with UploadWizard |
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