Polyfluoroalkyls (PFAS) detected in school uniforms in minute wuantities (median 1 part per ten million). To quote an article by @JoeSchwarcz “PFASs might be present in clothing, but the presence of a chemical cannot be equated to the presence of risk!”

Medical Mythbusting Commentary for September 22, 2022

Source:
Toxic chemicals found in school uniforms across North America

Reference:
Per- and Polyfluoroalkyl Substances in North American School Uniforms

Commentary:

Are we at risk from wearing clothing with detectable amounts of PFASs or phthalates?