Cloth–Air Partitioning of Neutral Per- and Polyfluoroalkyl Substances (PFAS) in North Carolina Homes during the Indoor PFAS Assessment (IPA) Campaign

Details

• Alternative Title:
  Environ Sci Technol
• Personal Author:
  Eichler, Clara M. A. ; Chang, Naomi Y. ; Cohen Hubal, Elaine A. ; Amparo, Daniel E. ; Zhou, Jiaqi ; Surratt, Jason D. ; Morrison, Glenn C. ; Turpin, Barbara J.
• Description:
  Partitioning of per- and polyfluoroalkyl substances (PFAS) to indoor materials, including clothing, may prolong the residence time of PFAS indoors and contribute to exposure. During the Indoor PFAS Assessment (IPA) Campaign, we measured concentrations of nine neutral PFAS in air and cotton cloth in 11 homes in North Carolina, for up to 9 months. Fluorotelomer alcohols (i.e., 6:2 FTOH, 8:2 FTOH, and 10:2 FTOH) are the dominant target species in indoor air, with concentrations ranging from 1.8 to 49 ng m|, 1.2 to 53 ng m|, and 0.21 to 5.7 ng m|, respectively. In cloth, perfluorooctane sulfonamidoethanols (i.e., MeFOSE and EtFOSE) accumulated most significantly over time, reaching concentrations of up to 0.26 ng cm| and 0.24 ng cm|, respectively. From paired measurements of neutral PFAS in air and suspended cloth, we derived cloth-air partition coefficients (|) for 6:2, 8:2, and 10:2 FTOH; ethylperfluorooctane sulfonamide (EtFOSA); MeFOSE; and EtFOSE. Mean log(|) values range from 4.7 to 6.6 and are positively correlated with the octanol-air partition coefficient. We investigated the effect of the cloth storage method on PFAS accumulation and the influence of home characteristics on air concentrations. Temperature had the overall greatest effect. This study provides valuable insights into PFAS distribution, fate, and exposure indoors.
• Subjects:
  Air Pollutants Environmental Monitoring Fluorocarbons North Carolina
• Keywords:
  Clothing Cotton Indoor Air Quality Indoor Exposure Residential Sinks Sorption Textile
• Source:
  Environ Sci Technol. 57(40):15173-15183
• Pubmed ID:
  37757488
• Pubmed Central ID:
  PMC11182342
• Document Type:
  Journal Article
• Funding:
  EPA999999/ImEPA/Intramural EPAUnited States/ ; T42 OH008673/OH/NIOSH CDC HHSUnited States/
• Volume:
  57
• Issue:
  40
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha-512:2e4dc25bcaa2b707a87c7e9c4f98ec2841677e93f938c04a0ad45d29f3bd4d8a7bd64cac6ccb9abbef4a70534fe4e5cac112a7da032fe8dedccd07c15f1ed90e
• Download URL:
  https://stacks.cdc.gov/view/cdc/158131/cdc_158131_DS1.pdf
• File Type:
  [PDF - 1.04 MB ]