Cargando…

Perfluoroalkyl acids in sediment and water surrounding historical fire training areas at Barksdale Air Force Base

Perfluoroalkyl acids (PFAAs) are environmentally persistent components of surfactants that consist of fully fluorinated carbon chains and a terminal sulfonate or carboxylate polar head moiety. Due to their unique amphiphilic properties, PFAAs are used in the manufacturing of products such as aqueous...

Descripción completa

Detalles Bibliográficos
Autores principales: Wilkinson, Rebecca S., Lanza, Heather A., Olson, Adric D., Mudge, Joseph F., Salice, Christopher J., Anderson, Todd A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8917801/
https://www.ncbi.nlm.nih.gov/pubmed/35287347
http://dx.doi.org/10.7717/peerj.13054
_version_ 1784668625064427520
author Wilkinson, Rebecca S.
Lanza, Heather A.
Olson, Adric D.
Mudge, Joseph F.
Salice, Christopher J.
Anderson, Todd A.
author_facet Wilkinson, Rebecca S.
Lanza, Heather A.
Olson, Adric D.
Mudge, Joseph F.
Salice, Christopher J.
Anderson, Todd A.
author_sort Wilkinson, Rebecca S.
collection PubMed
description Perfluoroalkyl acids (PFAAs) are environmentally persistent components of surfactants that consist of fully fluorinated carbon chains and a terminal sulfonate or carboxylate polar head moiety. Due to their unique amphiphilic properties, PFAAs are used in the manufacturing of products such as aqueous film forming foams (AFFF). There is cause for concern for PFAA contamination resulting from runoff and groundwater infiltration of AFFF that were used during fire training. This study analyzed water and sediment samples that were collected over a 13-month sampling period from bayous upstream and downstream of two former fire training areas located near Barksdale Air Force Base (BAFB); the occurrence and magnitude of PFAAs supported an aquatic ecological risk assessment of potential impacts of PFAAs at the site. Liquid chromatography coupled with mass spectrometry was used for determination of 6 PFAAs listed under the third Unregulated Contaminant Monitoring Rule (UCMR 3). Total PFAA concentrations in surface water and sediment samples ranged from 0 (ND) −7.1 ng/mL and 0 (ND) −31.4 ng/g, respectively. Perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) were the predominant PFAAs detected. In general, perfluorosulfonates were quantified more frequently and at higher concentrations than perfluorocarboxylates. The perfluoroalkyl chain length of PFAAs also showed significant influence on PFAA concentrations when analyzed by Spearman’s rank correlation analysis. Some contamination we observed in surface water and sediment samples from reference locations could be a result of local runoff from the use of commercial products containing per- and poly-fluoroalkyl substances (PFAS), but AFFF appears to be the primary source given the close proximity of the historical fire training areas.
format Online
Article
Text
id pubmed-8917801
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher PeerJ Inc.
record_format MEDLINE/PubMed
spelling pubmed-89178012022-03-13 Perfluoroalkyl acids in sediment and water surrounding historical fire training areas at Barksdale Air Force Base Wilkinson, Rebecca S. Lanza, Heather A. Olson, Adric D. Mudge, Joseph F. Salice, Christopher J. Anderson, Todd A. PeerJ Environmental Contamination and Remediation Perfluoroalkyl acids (PFAAs) are environmentally persistent components of surfactants that consist of fully fluorinated carbon chains and a terminal sulfonate or carboxylate polar head moiety. Due to their unique amphiphilic properties, PFAAs are used in the manufacturing of products such as aqueous film forming foams (AFFF). There is cause for concern for PFAA contamination resulting from runoff and groundwater infiltration of AFFF that were used during fire training. This study analyzed water and sediment samples that were collected over a 13-month sampling period from bayous upstream and downstream of two former fire training areas located near Barksdale Air Force Base (BAFB); the occurrence and magnitude of PFAAs supported an aquatic ecological risk assessment of potential impacts of PFAAs at the site. Liquid chromatography coupled with mass spectrometry was used for determination of 6 PFAAs listed under the third Unregulated Contaminant Monitoring Rule (UCMR 3). Total PFAA concentrations in surface water and sediment samples ranged from 0 (ND) −7.1 ng/mL and 0 (ND) −31.4 ng/g, respectively. Perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) were the predominant PFAAs detected. In general, perfluorosulfonates were quantified more frequently and at higher concentrations than perfluorocarboxylates. The perfluoroalkyl chain length of PFAAs also showed significant influence on PFAA concentrations when analyzed by Spearman’s rank correlation analysis. Some contamination we observed in surface water and sediment samples from reference locations could be a result of local runoff from the use of commercial products containing per- and poly-fluoroalkyl substances (PFAS), but AFFF appears to be the primary source given the close proximity of the historical fire training areas. PeerJ Inc. 2022-03-09 /pmc/articles/PMC8917801/ /pubmed/35287347 http://dx.doi.org/10.7717/peerj.13054 Text en ©2022 Wilkinson et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Environmental Contamination and Remediation
Wilkinson, Rebecca S.
Lanza, Heather A.
Olson, Adric D.
Mudge, Joseph F.
Salice, Christopher J.
Anderson, Todd A.
Perfluoroalkyl acids in sediment and water surrounding historical fire training areas at Barksdale Air Force Base
title Perfluoroalkyl acids in sediment and water surrounding historical fire training areas at Barksdale Air Force Base
title_full Perfluoroalkyl acids in sediment and water surrounding historical fire training areas at Barksdale Air Force Base
title_fullStr Perfluoroalkyl acids in sediment and water surrounding historical fire training areas at Barksdale Air Force Base
title_full_unstemmed Perfluoroalkyl acids in sediment and water surrounding historical fire training areas at Barksdale Air Force Base
title_short Perfluoroalkyl acids in sediment and water surrounding historical fire training areas at Barksdale Air Force Base
title_sort perfluoroalkyl acids in sediment and water surrounding historical fire training areas at barksdale air force base
topic Environmental Contamination and Remediation
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8917801/
https://www.ncbi.nlm.nih.gov/pubmed/35287347
http://dx.doi.org/10.7717/peerj.13054
work_keys_str_mv AT wilkinsonrebeccas perfluoroalkylacidsinsedimentandwatersurroundinghistoricalfiretrainingareasatbarksdaleairforcebase
AT lanzaheathera perfluoroalkylacidsinsedimentandwatersurroundinghistoricalfiretrainingareasatbarksdaleairforcebase
AT olsonadricd perfluoroalkylacidsinsedimentandwatersurroundinghistoricalfiretrainingareasatbarksdaleairforcebase
AT mudgejosephf perfluoroalkylacidsinsedimentandwatersurroundinghistoricalfiretrainingareasatbarksdaleairforcebase
AT salicechristopherj perfluoroalkylacidsinsedimentandwatersurroundinghistoricalfiretrainingareasatbarksdaleairforcebase
AT andersontodda perfluoroalkylacidsinsedimentandwatersurroundinghistoricalfiretrainingareasatbarksdaleairforcebase