Study finds increased toxic mercury levels in tuna and cod

Harvard scientists studied methyl mercury levels in fish from the Gulf of Maine, finding increases in codfish and bluefin tuna over 30 years. Climate change causes larger fish to consume more prey with higher mercury levels. Overfishing has altered the diet of Atlantic cod, leading to higher mercury intake. The study warns of health risks from consuming contaminated fish, linking methyl mercury to neurocognitive issues in children exposed in the womb.

What increase in methyl mercury levels was found in codfish and bluefin tuna over the past 30 years?

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How does climate change affect the diet of fish like bluefin tuna?

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What changes in the diet of Atlantic cod were noted due to overfishing?

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What impact does the consumption of contaminated fish have on human health?

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What are the potential long-term effects of exposure to methyl mercury, especially in children?

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