How Well Do Product Labels Indicate the Presence of PFAS in Consumer Items Used by Children and Adolescents?
Level 5 - mechanism / opinion, no new human data
Level 5 by design analogy (laboratory analytical chemical testing of consumer products without human participants).
PubMed 35506608 · doi:10.1021/acs.est.1c05175
What was done
Researchers evaluated 93 consumer items marketed to or used by children and adolescents across three categories (furnishings, apparel, and bedding) and five labeling groups combining water/stain resistance and 'green' (including 'nontoxic') claims. All 93 items were screened for total fluorine. Solvent extracts from a subset of 61 items were analyzed for 36 targeted PFAS, and a smaller subset of 30 items was tested for perfluoroalkyl acids (PFAAs) generated via precursor oxidation using the total oxidizable precursor (TOP) assay.
What was found
Items marketed as water- or stain-resistant showed more frequent detections and higher concentrations of total fluorine than those without such claims. Targeted PFAS were detected only in products labeled as water- and/or stain-resistant. In the TOP assay subset, post-oxidation PFAA concentrations often exceeded pre-oxidation levels, pointing to the presence of PFAA precursors. Among products advertised as water- and/or stain-resistant, detection frequencies and concentrations of targeted PFAS were similar regardless of whether the product carried 'green' assurances. The abstract reported no specific numerical concentrations or exact percentages.
Why it matters
This study shows that 'green' or 'nontoxic' marketing claims do not protect consumers from PFAS in children's products. Consumers seeking to minimize PFAS exposure must instead look for the presence or absence of water- and stain-resistant labeling.
Limits
The abstract provides qualitative comparisons but omits specific numerical values, concentrations, and statistical significance metrics. The sample size is limited to 93 selected items (with smaller subsets of 61 and 30 for detailed analytical assays), which may not be fully representative of all consumer goods. Laboratory extraction does not directly quantify real-world human exposure or absorption.
Cited by
- supports Certain stain-resistant and absorbent period products contain per- and polyfluoroalkyl substances (PFAS).