Mercury Levels in Tuna Arent Decreasing 
By Robyn White US Source: msn 4/3/2024
Robyn White
Credit: aleksandar kamasi/Getty
Mercury levels in tuna have remained largely unchanged for over 50 years, a new study has found.

The study, published in the ACS' Environmental Science & Technology Letters, found that levels of the chemical element haven't changed in the fish since 1971.
 

Mercury, or methylmercury, is a toxic chemical found in many fish species that people eat across the world. It is largely built up from fish feeding on prey that is contaminated with the chemical, such as smaller fish or crustaceans. It comes from some natural sources, such as volcanoes and geothermal activity, as well as human-related activities like coal combustion, mining and the incineration of waste.

 
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