LANSING, Mich. (Michigan News Source) – Just in time for beach season, the Michigan Department of Health and Human Services (MDHHS) is warning residents and tourists to stay away from suspicious foam floating on lakes, rivers, and streams.

The foam, which can appear white, brown or off-white and often smells earthy or fishy, may contain bacteria, algae and PFAS chemicals – the so-called “forever chemicals” tied to a plethora of health concerns.

PFAS, bacteria and more hiding in the bubbles.

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State health officials say the biggest concern isn’t necessarily touching the foam but accidentally swallowing it after contact. MDHHS Chief Medical Executive Dr. Natasha Bagdasarian said rinsing off after water activities can help reduce exposure risks for both people and pets.

The Michigan Department of Agriculture and Rural Development (MDARD) is also warning pet owners not to let animals play in or ingest the foam because residue can stick to fur and later be swallowed during grooming.

Anyone with questions about exposure to PFAS or foam can call the MDHHS Environmental Health Hotline at 800-648-6942. More information about PFAS in foam on surface water is available at FAQ: PFAS foam on lakes and streams, including a form to report suspected PFAS foam. For more information about PFAS, visit Michigan.gov/PFAS.