Partitioning of fluorotelomer alcohols (FTOH) to semipermeable membrane devices (SPMD)

Fiedler, S.; Pfister, Gerd; Schramm, Karl‐Werner

doi:10.1007/s11356-009-0237-y

Cited by 7 publications

(4 citation statements)

References 34 publications

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“…Some studies essentially concluded that an incomplete understanding of the effect of temperature on the uptake characteristics of those types of samplers precluded a quantitative interpretation. 58,59 Whereas SPMDs continue to be used occasionally as PASs, [61][62][63][64][65] the PAS designs in Table 1 can no longer be regarded as representing the state-ofthe-art in passive air sampling for SVOCs.…”

Section: D1 Samplers Involving Sorbents Enclosed Within Lowdensity Pmentioning

confidence: 99%

Passive air sampling for semi-volatile organic chemicals

Wania

Shunthirasingham

2020

Environ. Sci.: Processes Impacts

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Section: D1 Samplers Involving Sorbents Enclosed Within Lowdensity Pmentioning

confidence: 99%

Passive air sampling for semi-volatile organic chemicals

Wania

Shunthirasingham

2020

Environ. Sci.: Processes Impacts

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“…Several studies have relied on passive sampling for the detection of neutral, volatile PFASs. In particular polyurethane foam (PUF) discs, often sorbent-impregnated, have been used repeatedly (Genualdi et al 2010; Kim et al 2012; Ahrens et al 2013; Wang et al 2018), but also, activated carbon felts (S Oono et al 2008; Liu et al 2013), and semi-permeable membrane devices (SPMDs) (Fiedler et al 2010). In contrast, the use of single phase polymers, such as silicone-rubber based samplers or polyethylene sheets (PE) has not been explored for neutral, volatile PFASs.…”

Section: Introductionmentioning

confidence: 99%

Field‐testing polyethylene passive samplers for the detection of neutral polyfluorinated alkyl substances in air and water

Dixon-Anderson

Lohmann

2018

Enviro Toxic and Chemistry

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Fluorotelomer alcohols (FTOHs), perfluorooctane-sulfonamidoethanols (FOSEs), perfluorooctane-sulfonamides (FOSAs) and other poly- and perfluorinated alkyl substances (PFASs) are common and ubiquitous by-products of industrial telomerization processes. They can degrade into various perfluorinated carboxylic acids, which are persistent organic contaminants of concern. This study assessed the use of polyethylene (PE) passive samplers as a sampling tool for neutral PFAS precursors during field-deployments in air and water. A wide range of neutral PFASs was detected in PE sheets exposed in waste water treatment effluents in August 2017. Equilibration times for most neutral PFASs was on the order of 1–2 weeks. Based on known sampling rates, the partitioning constants between PE and water, KPEw, were derived. Log Kpew values were mostly in the range of 3 – 4.5, with greatest values for 8:2 FTOH, 10:2 FTOH and n-ethyl-FOSE. To test the utility of PE for gas-phase compounds, parallel active and passive sampling was performed in ambient air in Providence (RI, USA) in April 2016. Most PFASs equilibrated within 2–7 days. Greatest concentrations in PE samplers were detected for MeFOSE and EtFOSE. Polyethylene-air partitioning constants, log KpEa, were ~ 7–8 for the FTOHs, and approached 9 for n-methyl-FOSA and n-methyl-FOSE. PE sheets showed promise as a passive sampling approach for neutral PFASs in air and water.

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“…FTOHs are less persistent in the environment than PFOA and are used as replacement chemicals in textiles, food packaging, and firefighting foams and as chemical intermediates for polymer synthesis. − Recent reports show that FTOHs are widely used and account for 32% of the fluorochemical market in North America and Asia . It has been hypothesized that residual unbound FTOHs present in water and oil repellency products are volatizing leading to the high indoor air levels …”

Section: Resultsmentioning

confidence: 99%

Airborne Precursors Predict Maternal Serum Perfluoroalkyl Acid Concentrations

Makey

Webster

Martin

et al. 2017

Environ. Sci. Technol.

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Human exposure to persistent perfluoroalkyl acids (PFAAs), including perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorooctanesulfonate (PFOS), can occur directly from contaminated food, water, air, and dust. However, precursors to PFAAs (PreFAAs), such as dipolyfluoroalkyl phosphates (diPAPs), fluorotelomer alcohols (FTOHs), perfluorooctyl sulfonamides (FOSAs), and sulfonamidoethanols (FOSEs), which can be biotransformed to PFAAs, may also be a source of exposure. PFAAs were analyzed in 50 maternal sera samples collected in 2007-2008 from participants in Vancouver, Canada, while PFAAs and PreFAAs were measured in matching samples of residential bedroom air collected by passive sampler and in sieved vacuum dust (<150 μm). Concentrations of PreFAAs were higher than for PFAAs in air and dust. Positive associations were discovered between airborne 10:2 FTOH and serum PFOA and PFNA and between airborne MeFOSE and serum PFOS. On average, serum PFOS concentrations were 2.3 ng/mL (95%CI: 0.40, 4.3) higher in participants with airborne MeFOSE concentrations in the highest tertile relative to the lowest tertile. Among all PFAAs, only PFNA in air and vacuum dust predicted serum PFNA. Results suggest that airborne PFAA precursors were a source of PFOA, PFNA, and PFOS exposure in this population.

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Partitioning of fluorotelomer alcohols (FTOH) to semipermeable membrane devices (SPMD)

Abstract: As a consequence, we can only recommend the use of SPMD for FTOH of presumably high contamination levels.

Cited by 7 publications

References 34 publications

Passive air sampling for semi-volatile organic chemicals

Passive air sampling for semi-volatile organic chemicals

Field‐testing polyethylene passive samplers for the detection of neutral polyfluorinated alkyl substances in air and water

Airborne Precursors Predict Maternal Serum Perfluoroalkyl Acid Concentrations

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