Dr Reichelt-Brushett also noted that the sharks tested were from eastern Australia where pollution levels of mercury and other metals were relatively low. A separate study published in 2013 included sharks caught around Buru Island in Indonesia where arsenic and mercury from a nearby gold mine found even higher concentrations of the metals, she said.
Aside from shark meat and fins, consumers should also be wary of excess consumption of products made from shark livers, such as fish oil. The livers can have high concentrations of methyl mercury, the paper noted.
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