Indoor Air Concentrations of PM Quartz Fiber Filter-collected Ionic PFAS and Emissions to Outdoor Air: Findings From the IPA Campaign.

Details

• Alternative Title:
  Environmental Science. Processes & Impacts, 2025, v. 27, no. 6: Indoor Air Concentrations of PM Quartz Fiber Filter-collected Ionic PFAS and Emissions to Outdoor Air: Findings From the IPA Campaign.
• Journal Article:
  Environmental Science. Processes & Impacts
• Personal Author:
  Chang, Naomi Y. ; Eichler, Clara M.A. ; Amparo, Daniel E. ; Zhou, Jiaqi ; Baumann, Karsten ; Hubal, Elaine A. Cohen ; Surratt, Jason D. ; Morrison, Glenn C. ; Turpin, Barbara J.
• Description:
  Per- and polyfluoroalkyl substances (PFAS) are prevalent in consumer products used indoors. However, few measurements of ionic PFAS exist for indoor air. We analyzed samples collected on PM
  
  quartz fiber filters (QFFs) in 11 North Carolina homes 1-3 times in living rooms (two QFFs in series), and immediately outside each home (single QFF), for 26 ionic PFAS as part of the 9 months Indoor PFAS Assessment (IPA) Campaign. All targeted PFAS, except for PFDS and 8:2 monoPAP, were detected indoors. PFBA, PFHpA, PFHxA, PFOA, PFOS, and 6:2 diPAP were detected in >50% of indoor samples. PFHxA, PFOA, and PFOS had the highest detection frequency (DF = 80%; medians = 0.5-0.7 pg m
  
  ), while median PFBA concentrations (3.6 pg m
  
  ; DF = 67%) were highest indoors. Residential indoor air concentrations (sum of measured PFAS) were, on average, 3.4 times higher than residential outdoor air concentrations, and an order of magnitude higher than regional background concentrations. Indoor-to-outdoor emission rate estimates suggest that emissions from single unit homes could be a meaningful contributor to PFBA, PFOA, and PFOS emissions in populated areas far from major point sources. Backup QFFs were observed to adsorb some targeted PFAS from the gas-phase, making reported values upper-bounds for particle-phase and lower-bounds for total air (gas plus particle) concentrations. We found that higher concentrations of carbonaceous aerosol were associated with a shift in partitioning of short chain PFCAs and long chain PFSAs toward the particle phase.
• Content Notes:
  Author manuscript
• Subjects:
  • Air Pollution, Indoor
  • Environmental Monitoring
  • Particulate Matter
  • Air Pollutants
  • Fluorocarbons
  • Quartz
• Keywords:
  • Indoor air quality
  • indoor chemistry
  • sampling artifacts
  • aerosol composition
  • sorption
  • PFAS emission rate
  • aerosol
• Source:
  Environmental Science. Processes & Impacts, 2025, v. 27, no. 6
• DOI:
  https://doi.org/10.1039/d4em00359d
• ISSN:
  2050-7887 ; 2050-7895
• Pubmed ID:
  39361046
• Pubmed Central ID:
  PMC11965442
• Document Type:
  Text
• Funding:
  P30 ES010126/ES/NIEHS NIH HHSUnited States/ ; T42 OH008673/OH/NIOSH CDC HHSUnited States/
• Genre:
  Journal Article
• Place as Subject:
  North Carolina
• Pages in Document:
  1603-1618 (31 pdf pages)
• Volume:
  27
• Issue:
  6
• Download URL:
  https://stacks.cdc.gov/view/cdc/262002/cdc_262002_DS1.pdf
• File Type:
  [PDF - 941.00 KB]
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha-512:08548828abecb6a905fc4a90d0f476f1f71b00e146cb0fd084269dfae48808b3ba0eb05a98acfd0af0a81cfd795b14d6f4528975b79dae978d2270cd3cc0de31