A family-based risk assessment of PBDE exposure using a multi-pathway approach: Integrating diet, dust, air and serum measurements.

Dietary intake accounts for 85.3% of total PBDE exposure in South Korean families, with adolescents showing the highest median estimated daily intake of 4940 pg/kg body weight/day.

• Why it matters: Understanding the primary pathways of PBDE exposure is crucial for assessing health risks and developing targeted interventions, especially since individual variability exceeds family-level differences.
• What they did: The study analyzed PBDEs in indoor air, dust, diet, and serum from 124 participants across 48 households, using a multi-matrix approach to compare shared and individual exposure determinants.
• The result: Individual differences mainly drive exposure variability, with family membership explaining about 19%, and the risk assessment indicates limited health concern at the population level.