Publications by authors named "Daniel E Amparo"

Article Synopsis
  • The study investigates the presence and distribution of per- and polyfluoroalkyl substances (PFAS) in North Carolina homes by measuring them in dust, airborne particles, dryer lint, and heating/air conditioning filters.
  • Fluorotelomer alcohols (FTOHs) were found to be the most prevalent PFAS in dust, dryer lint, and HAC filters, while perfluorooctane sulfonamidoethanols (FOSEs) were more dominant in airborne particles.
  • The research identifies that cloth, gas phase, and HAC filters act as major reservoirs for FTOHs, and provides estimates of the release rates of these substances from homes to the outside environment.
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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.

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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.

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