A 22-year-old worker suffered first-degree chemical burns to his face, eyes, ears and neck after being exposed to "a mix of chemicals" Monday morning at the Royal Canadian Mint, paramedics say.

The 911 call came at about 7:40 a.m. The mix of chemicals the victim was exposed to included silver nitrate, paramedics said.

Co-workers doused the burns before paramedics arrived.

"Although the man’s burns are of the first degree, burns caused by chemicals can continue to affect the exposed area for several hours after contact," said a media release issued by paramedics.