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International study finds unprecedented amounts of mercury in Pacific Ocean

  TORONTO An international team of scientists have discovered unprecedented amounts of highly toxic mercury in Pacific Ocean trenches that exceed any prior record, and are higher than many areas that are directly contaminated by industrial waste. The study, published in the journal Scientific Reports on Wednesday, was a multi-national effort with scientists from Canada, Denmark, Germany and Japan. Researchers recorded the first-ever direct measurements of mercury deposits up to 10 kilometres below the surface of the Pacific. Ocean sediments are the largest repository or sink for mercury, the study states, but measurements have never been taken from greater than six kilometres below. The team took samples from the Atacama Trench, off the coast of Peru and Chile, and Kermadec Trench off the coast of New Zealand.

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