Occurrence of perfluoroalkyl substances (PFAS) in garden produce at homes with a history of PFAS-contaminated drinking water

Scher, Deanna; Kelly, James E.; Huset, Carin A.; Barry, Kitrina M.; Hoffbeck, Richard W.; Yingling, Virginia; Messing, Rita B.

doi:10.1016/j.chemosphere.2017.12.179

Cited by 129 publications

(70 citation statements)

References 32 publications

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“…Collection of water, soil, and produce samples is described elsewhere [ 1 ]. Water samples were refrigerated after collection and analyzed within 14 days.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Quantitative determination of perfluoroalkyl substances (PFAS) in soil, water, and home garden produce

Huset

Barry

2018

MethodsX

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“…Collection of water, soil, and produce samples is described elsewhere [ 1 ]. Water samples were refrigerated after collection and analyzed within 14 days.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Quantitative determination of perfluoroalkyl substances (PFAS) in soil, water, and home garden produce

Huset

Barry

2018

MethodsX

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“…PFCAs and PFSAs together are referred to as perfluoroalkyl acids (PFAAs), and thus, their precursors will be herein referred to as PFAA precursors. Due to their ubiquitous usage and recalcitrant nature, PFAS are persistent in the environment and frequently detected in various environmental matrices such as water (Appleman et al, 2014;Guelfo & Adamson, 2018;Hu et al, 2016), biosolids (Alder & van der Voet, 2015;Armstrong, Lozano, Rice, Ramirez, & Torrents, 2016;Navarro et al, 2018;Venkatesan & Halden, 2013), soil (Munoz et al, 2018), plant (Scher et al, 2018) and wildlife (Sedlak, Benskin, Wong, Grace, & Greig, 2017). In addition, PFAS including some long-chain PFCAs and PFSAs can bioaccumulate in aquatic organisms (Babut et al, 2017;Gewurtz et al, 2014;Hong et al, 2015) and may transfer to the food chain.…”

Section: Introductionmentioning

confidence: 99%

Per‐ and polyfluoroalkyl substances in commercially available biosolid‐based products: The effect of treatment processes

Lazcano

Perre

Mashtare

et al. 2019

Water Environment Research

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Per‐ and polyfluoroalkyl substances (PFAS) have been used in a variety of consumer and industrial products and are known to accumulate in sewage sludge due to sorption and their recalcitrant nature. Treatment processes ensure safe and high‐quality biosolids by reducing the potential for adverse environmental impacts such as pathogen levels; however, they have yet to be evaluated for their impact on the fate of PFAS. The objective of this study was to compare PFAS concentrations in four commercially available biosolid‐based products that received different types of treatments: heat treatment, composting, blending, and thermal hydrolysis. Seventeen perfluoroalkyl acids (PFAAs) were quantified using liquid chromatography with tandem quadrupole time‐of‐flight mass spectrometry followed by screening for 30 PFAA precursors. Treatment processes did not reduce PFAA loads except for blending, which served only to dilute concentrations. Several PFAA precursors were identified with 6:2 and 8:2 fluorotelomer phosphate diesters in all samples pre‐ and post‐treatment. Practitioner points Heat treatment and composting increased perfluoroalkyl acid (PFAA) concentrations. Only dilution from blending with non‐PFAS material decreased PFAA concentrations. Thermal hydrolysis process had no apparent effect on PFAA concentrations. PFAS sources are a greater driver of PFAS loads in biosolid‐based products than treatment processes.

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“…If a probable toxicant was known to be present in the environment or human populations—and also had an existing biomarker, or way of being measured in the body—the authors recommended it for biomonitoring as part of ECHO. Thirty-six chemicals met these criteria, including the alternative flame retardant hexabromocyclododecane, 8 the environmental phenol bisphenol A diglycidyl ether, 9 the perfluoroalkyl substance perfluorobutanoic acid, 10 and the pesticides azoxystrobin, 11 captan, 12 cyprodinil, 13 and glyphosate. 14…”

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confidence: 99%

Beyond the Light under the Lamppost: New Chemical Candidates for Biomonitoring in Young Children

Seltenrich¹

2020

Environ Health Perspect

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The National Institutes of Health research program known as Environmental Influences on Child Health Outcomes (ECHO) seeks to better understand how chemical exposures and other environmental factors affect children's health. 1 Of the roughly 40,000 chemicals approved for commercial use in the United States, 2 very few are routinely monitored in the U.S. population. 3 In a paper recently published in Environmental Health Perspectives, 4 researchers prioritized several dozen more chemicals for further study through ECHO. First author Edo Pellizzari, lead fellow emeritus with the nonprofit RTI International, has spent nearly 40 years studying environmental pollutants, including their burden in the human body and effects on various health outcomes. "I've noticed over the years that there's been a continued focus on a relatively small set of chemicals in our environment," Pellizzari says. "We felt that there were many more important chemicals that should be examined. Perhaps we should start looking beyond the light under the lamppost." When Pellizzari joined the newly established ECHO program in 2016, he says, "It was an opportunity to pull all of these facets together into a national-scale study." Eventually ECHO will include 84 cohorts comprising more than 50,000 children followed from before conception to 5 years of age. 5 Investigators will assess the effect of pre-, peri-, and postnatal chemical exposures on health. Pellizzari et al. also saw the 7-year study as an opportunity to break new ground. The new paper represents their effort at expanding the scope of ECHO-and that of research to comebeyond the 212 chemicals currently measured in the Centers for Disease Control and Prevention's longstanding National Health and Investigators nominated 36 chemicals commonly encountered by mothers and children, including 12 pesticides, for biomonitoring in ECHO cohorts.

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Occurrence of perfluoroalkyl substances (PFAS) in garden produce at homes with a history of PFAS-contaminated drinking water

Cited by 129 publications

References 32 publications

Quantitative determination of perfluoroalkyl substances (PFAS) in soil, water, and home garden produce

Quantitative determination of perfluoroalkyl substances (PFAS) in soil, water, and home garden produce

Per‐ and polyfluoroalkyl substances in commercially available biosolid‐based products: The effect of treatment processes

Beyond the Light under the Lamppost: New Chemical Candidates for Biomonitoring in Young Children

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