Mount Sinai Study Finds 42 PFAS in Newborn Cord Blood
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- Non‑targeted analysis of stored umbilical cord blood from 120 infants (2003‑2006) detected PFAS compounds beyond standard test panels.
- Researchers identified 42 confirmed or putatively identified PFAS chemicals, many of which are not routinely measured.
- PFAS‑omics burden scores were created using item response theory to quantify each newborn’s total PFAS exposure.
- Exposure comparison showed no difference between babies of first‑time mothers and those with prior pregnancies, contradicting earlier narrow‑panel studies.
- Lead author Shelley H. Liu emphasized that measurement method changes perceived exposure patterns and that prenatal PFAS exposure is more widespread than thought.
- Funding from the National Institutes of Health and collaboration among multiple universities enabled the study.
Why it matters: Clinicians and public‑health officials gain a clearer picture of prenatal PFAS burden, allowing targeted screening and prevention, while earlier assumptions about exposure differences by parity are overturned, prompting reassessment of risk‑reduction strategies. The study’s comprehensive PFAS‑omics scores reveal exposure levels previously missed, which could inform regulatory actions and guide future research on health outcomes in adolescence.
