Tiger Sharks Off the Coast of Brazil Found Ingesting Rare Earth Elements from Modern Technology

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Recent research has revealed that tiger sharks off the southern coast of Brazil are ingesting contaminants commonly found in modern technology, including rare earth elements (REEs) used in cellphones and electric cars.

These metals, crucial for various high-tech devices, have been detected in alarming amounts within the tissues of these apex predators.

Scientists, led by Natascha Wosnick of the Cape Eleuthera Institute, discovered these elements in the brains, kidneys, muscles, and other organs of 12 tiger sharks.

This marks the first recorded instance of such contaminants being found in sharks. The study raises concerns about the potential health impacts on these sharks, as the effects of these elements on marine life are still poorly understood.

The source of these contaminants is unclear. While mining activities and unregulated disposal of electronic waste are possible contributors, the migratory behavior of tiger sharks complicates pinpointing the exact origins of the contamination.

The potential risks extend beyond sharks, as these elements could eventually enter the human food chain, particularly in regions where shark meat is consumed.

The findings highlight the urgent need for regulatory guidelines on acceptable levels of REEs and other contaminants in marine environments.

As the demand for rare earth elements grows and deep-sea mining becomes a looming possibility, the impact on marine life could escalate, posing significant environmental challenges.

This article by Trinity Sparke  was first published by One Green Planet on 18 August 2024. Image Credit :USMANboy/Shutterstock.

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