A review of sample collection and analytical methods for detecting per- and polyfluoroalkyl substances in indoor and outdoor air

Wallace, M. Ariel Geer; Smeltz, Marci G.; Mattila, James M.; Liberatore, Hannah K.; Jackson, Stephen R.; Shields, Erin P.; Xhani, Xhensila; Li, Emily Y.; Johansson, Jana H.

doi:10.1016/j.chemosphere.2024.142129

Cited by 4 publications

(1 citation statement)

References 137 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The limited research on PFAS in air is attributed partly to the challenges associated with sampling. Some studies used passive sample collection methods such as sorbent-impregnated polyurethane , and polyethylene sheets, , and those involved an estimation of approximate air volume diffused into sorbents. Furthermore, passive sampling mainly presented gas-phase concentrations of PFAS.…”

Section: Introductionmentioning

confidence: 99%

Determination of Legacy and Emerging Per- and Polyfluoroalkyl Substances (PFAS) in Indoor and Outdoor Air

Li,

Kannan

2024

ACS EST Air

View full text Add to dashboard Cite

Despite increasing awareness of health risks associated with exposure to per- and polyfluoroalkyl substances (PFAS), studies on analysis of these chemicals in air are limited. In this study, an extensive sampling of indoor and outdoor air (at a residential neighborhood) was performed to determine the occurrence, temporal variation, and gas/particle partitioning of PFAS. Among 58 PFAS analyzed in air (sum of gas and particulate phases), fluorotelomer alcohols (FTOHs) were found at the highest concentrations (1900 ± 2000 pg/m3). The concentrations of FTOHs and perfluorooctane sulfonamides (FOSA/E) were 4.9−5.9 times higher in indoor air than those in residential outdoor air (p < 0.05). Emerging PFAS such as hexafluoropropylene oxide dimer acid (HFPO-DA), chlorinated polyfluoroether sulfonate (Cl-PFESA), and ADONA were detected at average concentrations ranging from 0.10 to 4.4 pg/m3. We found significant temporal variations in PFAS concentrations, with concentrations higher in warmer than colder months. The majority of ionic PFAS (>50%) such as PFOS were detected in the particulate phase, whereas FTOHs partition predominantly to the vapor phase. This study establishes baseline indoor air concentrations of emerging PFAS and contributes to the understanding of gas−particle partitioning of PFAS.

show abstract