Note: Single-source report; awaiting corroboration.
The home environment is a significant factor in health, as people spend much of their time there, including children at critical developmental stages. Scientific advances have improved our understanding of indoor exposures and effective ways to reduce risks. Dr. Heather Patisaul, an NIH environmental toxicology expert, emphasizes simple steps to lower common chemical exposures indoors.
Everyday household items—such as electronics, furniture, pesticides, fabrics, and products containing PFAS—release chemicals into the air and dust over time. Dr. Heather Stapleton, a Duke University environmental chemist, notes that modern building materials and standards have increased the presence of various chemicals and plastics indoors. Flame retardants, used widely in furniture and other products, have raised concerns about brain development and thyroid hormone effects, leading to the phase-out of many older types. Researchers continue to monitor new flame retardants in electronics and insulation, but products without flame retardants are now increasingly available.
Chemicals often attach to dust particles, which settle on surfaces and in the air, posing exposure risks—especially for children who touch surfaces and put their hands in their mouths. Maintaining good hygiene and regular cleaning routines is key to reducing these exposures. For example, an NIH-funded study led by Stapleton found that families who used robotic vacuums on a fixed schedule saw reduced chemical levels after the study period.