Method for extraction and analysis of per- and poly-fluoroalkyl substances in contaminated asphalt

Srivastava, Prashant; Williams, Mike; Du, Jun; Navarro, Divina A.; Kookana, Rai S.; Douglas, Grant; Bastow, Trevor P.; Davis, Gordon B.; Kirby, Jason K.

doi:10.1039/d2ay00221c

Cited by 9 publications

(3 citation statements)

References 48 publications

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“…Relative recoveries ranged from 55% for PFHxA to 139% for PFOA (except for 6:2 FTS) (Table S9 ). For the target PFAS investigated, 19 of the 22 fell within the generally accepted range of 70–130% (Srivastava et al 2022 ). PFHxA (10 ng/g paperboard spike), PFOA (10 ng/g paperboard spike) and 6:2 FTS showed poor recovery.…”

Section: Resultsmentioning

confidence: 72%

“…Other factors, such as SPE interaction, the influence of the buffer solvent system, interaction with other PFAS compounds present and salts, ions and organic matter in the paper samples, may have further influenced the recovery of these target PFAS (Zabaleta et al 2016 ; Kaiser et al 2020 ; Harris et al 2022 ). The %RSD for the relative recoveries ranged from 1.0 to 9.8%, indicating acceptable precision (Srivastava et al 2022 ). The method LODs and LOQs were found to be generally lower for the compounds present in the lower concentration in the calibration standard mix with LODs ranging from 1.47 pg/g for PFDA to 10.1 pg/g for PFUnA for compounds present as 2 µg/mL in methanol (Table S9 ).…”

Section: Resultsmentioning

confidence: 99%

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Determination of per- and polyfluoroalkyl compounds in paper recycling grades using ultra-high-performance liquid chromatography–high-resolution mass spectrometry

Mofokeng,

Madikizela,

Tiggelman

et al. 2024

Environ Sci Pollut Res

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Globally, per- and polyfluoroalkyl substances (PFAS)–related research on paper products has focused on food packaging with less consideration on the presence of PFAS at different stages of the paper recycling chain. This study analysed the prevalence of PFAS in paper grades used for the manufacture of recycled paperboard. The presence of PFAS was attributed to the use of PFAS-containing additives, consumer usage, exposure to packed goods as well as contamination during mingling, sorting, collection, and recovery of paper recycling material. Q Orbitrap mass spectrometry was used to analyse the paper samples after accelerated solvent extraction and solid phase extraction. The distribution and possible propagation of 22 PFAS were determined in pre-consumer, retail and post-consumer paper products. Post-consumer samples had the highest combined average concentration (ΣPFAS) at 213 ng/g, while the ΣPFAS in retail (159 ng/g) and pre-consumer samples (121 ng/g) was detected at lower concentrations. This study showed that waste collection and recycling protocols may influence PFAS propagation and that measures must be developed to minimise and possibly eliminate exposure opportunities.

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Section: Resultsmentioning

confidence: 72%

Section: Resultsmentioning

confidence: 99%

Determination of per- and polyfluoroalkyl compounds in paper recycling grades using ultra-high-performance liquid chromatography–high-resolution mass spectrometry

Mofokeng,

Madikizela,

Tiggelman

et al. 2024

Environ Sci Pollut Res

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“…This study used methanol as a solvent for extraction. Methanol has been routinely used to extract PFAAs from various matrices. , including textiles. − The methods employed by the above-mentioned studies, which rely on sequential solvent extraction cycles with methanol, were found to limit matrix effects and provide reproducible recoveries of PFASs.…”

Section: Methodsmentioning

confidence: 99%

Are Geotextiles Silent Contributors of Ultrashort Chain PFASs to the Environment?

Mikhael,

Bouazza,

Gates

et al. 2024

Environ. Sci. Technol.

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We investigated the presence of per- and poly fluoroalkyl substances (PFASs) in woven and nonwoven polypropylene geotextiles and four nonwoven polyester geotextiles commonly used in modern geosynthetic composite lining systems for waste containment facilities such as landfills. Targeted analysis for 23 environmentally significant PFAS molecules and methods for examining “PFAS total” concentrations were utilized to assess their occurrence in geotextiles. This analysis showed that most geotextile specimens evaluated in the current investigation contained the ultrashort chain PFAS compound pentafluoropropionic acid (PFPrA). While the concentrations ranged from nondetectable to 10.84 μg/g, the average measured concentrations of PFPrA were higher in polypropylene than in polyester geotextiles. “PFAS total” parameters comprising total fluorine (TF) and total oxidizable precursors (TOPs) indicate that no significant precursor mass nor untargeted intermediates were present in geotextiles. Therefore, this study identified geotextiles as a possible source of ultrashort PFASs in engineered lined waste containment facilities, which may contribute to the overall PFAS total concentrations in leachates or liquors they are in contact with. The findings reported for the first time herein may lead to further implications on the fate and migration of PFASs in geosynthetic composite liners, as previously unidentified concentrations, particularly of ultrashort-chain PFASs, may impact the extent of PFAS migration through and attenuation by constituents of geosynthetic composite liner systems. Given the widespread use of geotextiles in various engineering activities, these findings may have other unknown impacts. The significance of these findings needs to be further elucidated by more extensive studies with larger geotextile sample sizes to allow broader, generalized conclusions to be drawn.

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Quantification of the variability and penetration of per- and poly-fluoroalkyl substances through a concrete pad

Williams

Douglas

et al. 2023

Chemosphere

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Method for extraction and analysis of per- and poly-fluoroalkyl substances in contaminated asphalt

Abstract: The legacy use of aqueous film-forming foam (AFFF) has led to the generation of large volumes of per- and poly-fluoroalkyl substances (PFAS)-contaminated asphalt materials, especially at airports and fire training...

Cited by 9 publications

References 48 publications

Determination of per- and polyfluoroalkyl compounds in paper recycling grades using ultra-high-performance liquid chromatography–high-resolution mass spectrometry

Determination of per- and polyfluoroalkyl compounds in paper recycling grades using ultra-high-performance liquid chromatography–high-resolution mass spectrometry

Are Geotextiles Silent Contributors of Ultrashort Chain PFASs to the Environment?

Quantification of the variability and penetration of per- and poly-fluoroalkyl substances through a concrete pad

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