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

Details

• Personal Author:
  Amparo DE ; Chang NY ; Cohen Hubal EA ; Eichler CMA ; Morrison GC ; Surratt JD ; Turpin BJ ; Zhou 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-3, 1.2 to 53 ng m-3, and 0.21 to 5.7 ng m-3, respectively. In cloth, perfluorooctane sulfonamidoethanols (i.e., MeFOSE and EtFOSE) accumulated most significantly over time, reaching concentrations of up to 0.26 ng cm-2 and 0.24 ng cm-2, respectively. From paired measurements of neutral PFAS in air and suspended cloth, we derived cloth-air partition coefficients (Kca) for 6:2, 8:2, and 10:2 FTOH; ethylperfluorooctane sulfonamide (EtFOSA); MeFOSE; and EtFOSE. Mean log(Kca) 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. [Description provided by NIOSH]
• Subjects:
  Air Pollution, Indoor Occupational Health Safety Textile Industry
• Keywords:
  Author Keywords: Indoor Air Quality Clothing Cotton Exposure Assessment IAQ Indoor Air Quality Indoor Environments Indoor Exposure Per- And Polyfluoroalkyl Substances PFAS Residential Sinks Sorption Textile Textiles

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• ISSN:
  0013-936X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  North Carolina ; OSHA Region 4
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  57
• Issue:
  40
• NIOSHTIC Number:
  nn:20069639
• Citation:
  Environ Sci Technol 2023 Oct; 57(40):15173-15183
• Contact Point Address:
  Barbara J. Turpin, University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of Environmental Sciences and Engineering, Chapel Hill, North Carolina 27599-7400, United States
• Email:
  bjturpin@email.unc.edu
• Federal Fiscal Year:
  2024
• Performing Organization:
  University of North Carolina, Chapel Hill
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Environmental Science and Technology
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:67c5fe152cbeca471970a43d2d68979a5d40f1ef65cef7b85c6853f905091d1bbf8e7b01f931673113fa5977c216e9e67f6285de3a4c7fcb14b170a5e6b57d9f
• Download URL:
  https://stacks.cdc.gov/view/cdc/208028/cdc_208028_DS1.pdf
• File Type:
  [PDF - 2.06 MB ]