Dozens of Rio Olympic medals have suffered “unsightly staining” or had their coverings fall away, according to Agence France-Presse.
“We’re seeing problems with the covering on between six or seven percent of the medals, and it seems to be to do with the difference in temperatures,” Rio 2016 spokesman Mario Andrada said, according to the report, which estimated that 2,021 medals were awarded in August.
Six or seven percent of 2,021 medals is between 121 medals and 141 medals. Most of the defective medals are silver medals, and Rio 2016 and the Brazilian mint are working with the IOC on a system to repair or replace defective medals.
About 30 percent of the Rio Olympic silver and bronze medals came from recycled materials.
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