Indigenous peoples fight Hydro Quebec expansion- VT Digger

Canadian indigenous people's activists are concerned about mercury pollution from proposed construction of a new Hydro Quebec dam. How serious is this concern?

"A primary concern for Saunders, and for many in the watershed that lies downstream from Churchill Falls, is the release of methylmercury into the environment — when land is flooded, the water brings naturally occuring mercury from the soil into contact with water-borne bacteria that transform it into the neurotoxin methylmercury. The methylmercury is absorbed by microscopic plankton, and then is increasingly concentrated as it passes up the food chain, eventually turning fish, seals and waterfowl into potential health risks for humans.

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