Can PFAS in household dust raise your child's risk of leukemia?

What's actually in it

Household dust is a cocktail of chemicals shed by everything in your home. Stain-resistant carpets, treated upholstery, waterproof fabrics, and nonstick surfaces all release PFAS into dust. Children are the most exposed because they play on the floor, put things in their mouths, and breathe air closer to ground level where dust concentrations are highest.

PFAS in dust don't break down. They accumulate in a child's body over years of daily exposure from crawling, playing, and simply living in the home.

What the research says

A 2025 study in Int J Cancer measured PFAS levels in settled dust from homes of children diagnosed with acute lymphoblastic leukemia (ALL) and compared them to homes of healthy children. Children in homes with higher PFAS dust levels had an increased risk of ALL.

The study looked at multiple PFAS compounds and found that the association was strongest for certain long-chain PFAS types commonly shed by stain-resistant carpets and furniture treatments. The risk increased with higher dust concentrations.

ALL is the most common childhood cancer. While PFAS exposure alone doesn't cause leukemia, it appears to be a contributing factor in susceptible children. Frequent vacuuming with a HEPA filter, wet mopping, and removing shoes at the door all reduce PFAS levels in household dust.