Released through industrial activities, coal power plants and artisanal and small-scale gold mining, mercury makes its way into the marine environment through various pathways such as rainfall and surface water. “Bacteria in the water column and sediment change mercury to methylmercury, an extremely toxic element, which can have serious negative effects on organisms and tends to bioaccumulate as it is transferred up the food chain” said Dr Emiliya Vasileva, Research Scientist in the Marine Environmental Studies Laboratory of the IAEA Environment Laboratories.
https://www.iaea.org/newscenter/news/improving-mercury-monitoring-in-the-marine-environment-and-in-seafood
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