Lake Superior Rainbow Smelt Contaminated With High Levels of PFOS

Smelt Fish

The State Health Department is updating its guidelines after elevated levels of PFOS were found In Lake Superior rainbow smelt.

Smelt are a type of fish.

The state says it was notified by the Wisconsin Department of Natural Resources of alarming levels of PFOS. Those are a type of PFAS.

They can have harmful effects on people, like reduced fertility, thyroid disease and liver damage.

Starting now, the state now recommends people limit Lake Superior smelt consumption to one serving per month.

A serving is considered to be an 8-ounce portion size for adults and 2 or 4 ounces for kids.