TY - JOUR
T1 - Environmental Sources, Chemistry, Fate, and Transport of Per- and Polyfluoroalkyl Substances
T2 - State of the Science, Key Knowledge Gaps, and Recommendations Presented at the August 2019 SETAC Focus Topic Meeting
AU - Guelfo, Jennifer L.
AU - Korzeniowski, Stephen
AU - Mills, Marc A.
AU - Anderson, Janet
AU - Anderson, Richard H.
AU - Arblaster, Jennifer A.
AU - Conder, Jason M.
AU - Cousins, Ian T.
AU - Dasu, Kavitha
AU - Henry, Barbara J.
AU - Lee, Linda S.
AU - Liu, Jinxia
AU - McKenzie, Erica R.
AU - Willey, Janice
N1 - Publisher Copyright:
© 2021 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC
PY - 2021/12
Y1 - 2021/12
N2 - A Society of Environmental Toxicology and Chemistry (SETAC) Focused Topic Meeting (FTM) on the environmental management of per- and polyfluoroalkyl substances (PFAS) convened during August 2019 in Durham, North Carolina (USA). Experts from around the globe were brought together to critically evaluate new and emerging information on PFAS including chemistry, fate, transport, exposure, and toxicity. After plenary presentations, breakout groups were established and tasked to identify and adjudicate via panel discussions overarching conclusions and relevant data gaps. The present review is one in a series and summarizes outcomes of presentations and breakout discussions related to (1) primary sources and pathways in the environment, (2) sorption and transport in porous media, (3) precursor transformation, (4) practical approaches to the assessment of source zones, (5) standard and novel analytical methods with implications for environmental forensics and site management, and (6) classification and grouping from multiple perspectives. Outcomes illustrate that PFAS classification will continue to be a challenge, and additional pressing needs include increased availability of analytical standards and methods for assessment of PFAS and fate and transport, including precursor transformation. Although the state of the science is sufficient to support a degree of site-specific and flexible risk management, effective source prioritization tools, predictive fate and transport models, and improved and standardized analytical methods are needed to guide broader policies and best management practices. Environ Toxicol Chem 2021;40:3234–3260.
AB - A Society of Environmental Toxicology and Chemistry (SETAC) Focused Topic Meeting (FTM) on the environmental management of per- and polyfluoroalkyl substances (PFAS) convened during August 2019 in Durham, North Carolina (USA). Experts from around the globe were brought together to critically evaluate new and emerging information on PFAS including chemistry, fate, transport, exposure, and toxicity. After plenary presentations, breakout groups were established and tasked to identify and adjudicate via panel discussions overarching conclusions and relevant data gaps. The present review is one in a series and summarizes outcomes of presentations and breakout discussions related to (1) primary sources and pathways in the environment, (2) sorption and transport in porous media, (3) precursor transformation, (4) practical approaches to the assessment of source zones, (5) standard and novel analytical methods with implications for environmental forensics and site management, and (6) classification and grouping from multiple perspectives. Outcomes illustrate that PFAS classification will continue to be a challenge, and additional pressing needs include increased availability of analytical standards and methods for assessment of PFAS and fate and transport, including precursor transformation. Although the state of the science is sufficient to support a degree of site-specific and flexible risk management, effective source prioritization tools, predictive fate and transport models, and improved and standardized analytical methods are needed to guide broader policies and best management practices. Environ Toxicol Chem 2021;40:3234–3260.
KW - Analytical chemistry
KW - Classification
KW - Fate and transport
KW - Interfacial sorption
KW - Perfluoroalkyl substances
KW - Precursor
KW - Risk assessment
UR - http://www.scopus.com/inward/record.url?scp=85116310614&partnerID=8YFLogxK
U2 - 10.1002/etc.5182
DO - 10.1002/etc.5182
M3 - Review article
C2 - 34325493
AN - SCOPUS:85116310614
SN - 0730-7268
VL - 40
SP - 3234
EP - 3260
JO - Environmental Toxicology and Chemistry
JF - Environmental Toxicology and Chemistry
IS - 12
ER -