Research Summary: Health risk assessment of indoor formaldehyde exposure

Formaldehyde is one of the most common indoor air chemicals, and most homeowners have no idea it's there. A health risk assessment spanning 11 cities found that bedroom levels can run nearly 1.7 times higher than living rooms, and that infants face roughly 2.8 times the exposure risk of adults due to their body size and developing systems. The good news: material choices during renovation or furnishing can reduce estimated cancer risk by 62-78%. Here's what the research says, and what it means for U.S. homes.