
(WWJ) -- As the temps rise and people head out to the water, the Michigan Department of Health and Human Services (MDHHS) recommends that Michiganders and visitors avoid foam on lakes, rivers and streams.
This questionable foam can form on any body of water and can sometimes contain harmful chemicals, like high levels of per- and polyfluoroalkyl substances (PFAS) -- so, beware!
MDHHS says foam containing these chemicals tend to be bright white in color, lightweight and may pile up along shores or blow onto beaches.
An evaluation by the MDHHS suggests that young children who come into contact with PFAS-containing foam for a few hours a day may be more at risk of negative health effects.
Some studies have even shown that higher PFAS exposure in people is linked to higher cholesterol and thyroid disease.
Natural foam without PFAS will usually be off-white and/or brown in color. It often has an earthy or fishy scent and tends to pile up in bays, eddies or at river barriers such as dams.
If you do come in contact with the foam, MDHHS recommends that you rinse off or bathe as soon as possible, especially if the body of water has suspected PFAS contamination.
“Studies have shown that the risk of PFAS getting into your body from skin contact is low, but you can accidentally swallow PFAS or other chemicals and bacteria if you do not rinse off or bathe after coming into contact with foam,” said Dr. Natasha Bagdasarian, MDHHS chief medical executive. “Washing your hands and rinsing off after water activities can protect you from chemicals or bacteria that may be in water or foam.”
The Michigan Department of Agriculture and Rural Development (MDARD) also recommends that people do not allow their animals to come into contact or swallow foam that's on the water.
If animals come into contact with the foam, they should be rinsed off and bathed with fresh water as foam can build up in animal fur. Animal owners with questions related to animals and foam ingestion should contact their veterinarian.
The science around PFAS is still developing, so MDHHS is working with local health departments to issue recommendations and health advisories for foam on bodies of water.
Health advisories have been issued for some waterbodies where PFAS-containing foam has been found. These advisories can be found in the “PFAS Foam on Lakes and Streams” section of the Michigan PFAS Action Response Team Website.
MDHHS continues to review data on PFAS-containing foam as it is available and will issue advisories as needed.
Anyone with questions about exposure to PFAS or foam can call the MDHHS Environmental Health hotline at 800-648-6942. More information is available on the MPART website.