More than 130 Olympic athletes from the 2016 Rio de Janeiro Games said that their medals are rusting or chipping, USA Today reported.
“We’re seeing problems with the covering on between 6 or 7% of the medals, and it seems to do with the difference in temperatures,” Rio Games communications officer Mario Andrada said. He also said that the decaying was "completely normal" after nine months since the medals are only about 1.34 percent gold and 30 percent of the sterling silver came from recycled silver.
"The most common issue is that they were dropped or mishandled, and the varnish has come off and they've rusted or gone black in the spot where they were damaged," Andrada said.
The International Olympic Committee and Rio organizers are devising a system to replace the medals of those who were unsatisfied with the corroded medals.
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