Laut Analyse im Nabelschnurblut waren zwischen 2003 und 2006 geborene Babys vor der Geburt viel mehr „Forever Chemicals“ (PFAS) ausgesetzt, als Wissenschaftler bisher vermutet hatten

>The researchers measured PFAS in archived umbilical cord blood samples collected between 2003 and 2006 from 120 babies in the HOME Study, based in Cincinnati. Looking back two decades allowed the researchers to create a new tool that can be linked to health outcomes in the now-adolescent study participants, which will be a focus of future research. 
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>Using a newer, non-targeted chemical analysis method—a technique that scans for hundreds to thousands of chemicals at the same time rather than testing for a short, predefined list—the research team detected many more PFAS chemicals in umbilical cord blood than traditional testing methods capture, including newer and understudied compounds. The researchers found 42 confirmed or putatively identified PFAS chemicals in cord blood using this non-targeted approach. Many of these PFAS are not commonly screened in traditional testing methods and their health effects are unknown. The results showed that infants are exposed to a wide range of PFAS, including perfluorinated chemicals, polyfluorinated chemicals, and fluorotelomers, before birth.  
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>The researchers created PFAS-omics burden scores, using item response theory methods, to summarize total exposure to PFAS. The PFAS-omics scores can be interpreted as a snapshot in time of a baby’s overall PFAS exposure. 
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[Quantifying PFAS-Omics Burden Scores for Nontargeted Analysis Using Multidimensional Item Response Theory: An Exploratory Analysis of Novel and Legacy PFAS in Cord Blood | Environmental Science & Technology](https://pubs.acs.org/doi/10.1021/acs.est.5c06490)