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High Prenatal PFAS Exposure Linked to Childhood Asthma Risk

4/11/2026

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Summary

Story summary

Very high prenatal exposure to PFAS increases asthma risk in children, according to a Swedish study in PLOS Medicine.
The study analyzed data from more than 11,000 children born from 2006 to 2022 and linked high maternal PFAS exposure to asthma by age 12.
No link appeared at lower PFAS exposure levels.
Experts caution that findings may not generalize, since exposure levels in affected communities were much higher than typical.

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Story summary

Very high prenatal exposure to PFAS increases asthma risk in children, according to a Swedish study in PLOS Medicine.
The study analyzed data from more than 11,000 children born from 2006 to 2022 and linked high maternal PFAS exposure to asthma by age 12.
No link appeared at lower PFAS exposure levels.
Experts caution that findings may not generalize, since exposure levels in affected communities were much higher than typical.