Read the full article by Garret Ellison (MLive)

“LANSING, MI — Michigan health officials want people to limit intake of a popular fish from Lake Superior due to concerning levels of toxic ‘forever chemicals’ in some samples.

The Michigan Department of Health and Human Services (DHHS) issued the warning on Wednesday, March 24, after PFAS chemicals were found in rainbow smelt collected in 2019 from Lake Superior near the Apostle Islands.

Adults should not eat more than one 8-ounce serving of Lake Superior smelt per month, and children shouldn’t eat more than one 4-ounce serving per month, the state says.

‘This precautionary guideline is based on data shared by Wisconsin, which shows elevated levels of PFOS in Lake Superior rainbow smelt,’ said Dr. Joneigh Khaldun, chief DHHS medical executive and chief deputy for health.

‘PFOS is a perfluoroalkyl substance (PFAS) associated with harmful effects in people, including reduced fertility, thyroid disease and liver damage,’ she said. ‘We will update this guideline once the department has additional data.’

The advisory comes ahead of spawning season for Lake Superior smelt, which draws fishermen with hand-dip nets to rivers and streams along the lake each April and May.

The small silver fish are not native to Lake Superior. They are often fried or eaten whole.

The Wisconsin Department of Natural Resources issued a similar consumption advisory in January after finding elevated levels of the synthetic chemicals in fish samples.

Sampled fish had PFOS concentrations ranging from 24 to 118 parts-per-billion (ppb), and an average of 63-ppt, according to the Wisconsin State Journal…”