The impact of particle size on PFAS concentrations in dust from homes in North Carolina and New York and implications for exposure.

ABSTRACT: Per- and polyfluoroalkyl substances (PFAS) are manufactured chemicals and ubiquitously present in the environment, including in homes. The two major exposure pathways for PFAS indoors are inhalation and accidental ingestion of house dust; however, the influence of dust particle size on PFAS exposure is not well understood to date. Thus, we are aiming to better understand the relationship between dust particle size and PFAS concentrations. We collected dust from 10 homes in North Carolina and seven homes in New York, sieved the dust into multiple size fractions ranging from <63 μm to <2,000 μm, and used targeted methods to analyze the fractions for PFAS. We found that many neutral PFAS are significantly (p < 0.05) and negatively correlated with dust particle size (mean Pearson correl

SUBMITTER: Eichler CMA 

PROVIDER: S-EPMC12721804 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature