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Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017)

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Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017). / Garnett, Jack; Halsall, Crispin; Winton, Holly et al.

In: Environmental Science and Technology, Vol. 56, No. 16, 16.08.2022, p. 11246–11255.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Garnett, J, Halsall, C, Winton, H, Joerss, H, Mulvaney, R, Ebinghaus, R, Frey, M, Jones, A, Leeson, A & Wynn, P 2022, 'Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017)', Environmental Science and Technology, vol. 56, no. 16, pp. 11246–11255. https://doi.org/10.1021/acs.est.2c02592

APA

Garnett, J., Halsall, C., Winton, H., Joerss, H., Mulvaney, R., Ebinghaus, R., Frey, M., Jones, A., Leeson, A., & Wynn, P. (2022). Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017). Environmental Science and Technology, 56(16), 11246–11255. https://doi.org/10.1021/acs.est.2c02592

Vancouver

Garnett J, Halsall C, Winton H, Joerss H, Mulvaney R, Ebinghaus R et al. Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017). Environmental Science and Technology. 2022 Aug 16;56(16):11246–11255. Epub 2022 Jul 26. doi: 10.1021/acs.est.2c02592

Author

Garnett, Jack ; Halsall, Crispin ; Winton, Holly et al. / Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017). In: Environmental Science and Technology. 2022 ; Vol. 56, No. 16. pp. 11246–11255.

Bibtex

@article{17ed4776f5fe43a3a8b24ee252c7ec9f,
title = "Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017)",
abstract = "Perfluoroalkyl acids (PFAAs) are synthetic chemicals with a variety of industrial and consumer applications that are now widely distributed in the global environment. Here, we report the measurement of six perfluorocarboxylates (PFCA, C4–C9) in a firn (granular compressed snow) core collected from a non-coastal, high-altitude site in Dronning Maud Land in Eastern Antarctica. Snow accumulation of the extracted core dated from 1958 to 2017, a period coinciding with the advent, use, and geographical shift in the global industrial production of poly/perfluoroalkylated substances, including PFAA. We observed increasing PFCA accumulation in snow over this time period, with chemical fluxes peaking in 2009–2013 for perfluorooctanoate (PFOA, C8) and nonanoate (PFNA, C9) with little evidence of a decline in these chemicals despite supposed recent global curtailments in their production. In contrast, the levels of perfluorobutanoate (PFBA, C4) increased markedly since 2000, with the highest fluxes in the uppermost snow layers. These findings are consistent with those previously made in the Arctic and can be attributed to chlorofluorocarbon replacements (e.g., hydrofluoroethers) as an inadvertent consequence of global regulation.",
keywords = "PFAS, Antarctica, industrial emissions, CFCs, global regulation",
author = "Jack Garnett and Crispin Halsall and Holly Winton and Hanna Joerss and Robert Mulvaney and Ralf Ebinghaus and Markus Frey and Anna Jones and Amber Leeson and Peter Wynn",
year = "2022",
month = aug,
day = "16",
doi = "10.1021/acs.est.2c02592",
language = "English",
volume = "56",
pages = "11246–11255",
journal = "Environmental Science and Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "16",

}

RIS

TY - JOUR

T1 - Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017)

AU - Garnett, Jack

AU - Halsall, Crispin

AU - Winton, Holly

AU - Joerss, Hanna

AU - Mulvaney, Robert

AU - Ebinghaus, Ralf

AU - Frey, Markus

AU - Jones, Anna

AU - Leeson, Amber

AU - Wynn, Peter

PY - 2022/8/16

Y1 - 2022/8/16

N2 - Perfluoroalkyl acids (PFAAs) are synthetic chemicals with a variety of industrial and consumer applications that are now widely distributed in the global environment. Here, we report the measurement of six perfluorocarboxylates (PFCA, C4–C9) in a firn (granular compressed snow) core collected from a non-coastal, high-altitude site in Dronning Maud Land in Eastern Antarctica. Snow accumulation of the extracted core dated from 1958 to 2017, a period coinciding with the advent, use, and geographical shift in the global industrial production of poly/perfluoroalkylated substances, including PFAA. We observed increasing PFCA accumulation in snow over this time period, with chemical fluxes peaking in 2009–2013 for perfluorooctanoate (PFOA, C8) and nonanoate (PFNA, C9) with little evidence of a decline in these chemicals despite supposed recent global curtailments in their production. In contrast, the levels of perfluorobutanoate (PFBA, C4) increased markedly since 2000, with the highest fluxes in the uppermost snow layers. These findings are consistent with those previously made in the Arctic and can be attributed to chlorofluorocarbon replacements (e.g., hydrofluoroethers) as an inadvertent consequence of global regulation.

AB - Perfluoroalkyl acids (PFAAs) are synthetic chemicals with a variety of industrial and consumer applications that are now widely distributed in the global environment. Here, we report the measurement of six perfluorocarboxylates (PFCA, C4–C9) in a firn (granular compressed snow) core collected from a non-coastal, high-altitude site in Dronning Maud Land in Eastern Antarctica. Snow accumulation of the extracted core dated from 1958 to 2017, a period coinciding with the advent, use, and geographical shift in the global industrial production of poly/perfluoroalkylated substances, including PFAA. We observed increasing PFCA accumulation in snow over this time period, with chemical fluxes peaking in 2009–2013 for perfluorooctanoate (PFOA, C8) and nonanoate (PFNA, C9) with little evidence of a decline in these chemicals despite supposed recent global curtailments in their production. In contrast, the levels of perfluorobutanoate (PFBA, C4) increased markedly since 2000, with the highest fluxes in the uppermost snow layers. These findings are consistent with those previously made in the Arctic and can be attributed to chlorofluorocarbon replacements (e.g., hydrofluoroethers) as an inadvertent consequence of global regulation.

KW - PFAS

KW - Antarctica

KW - industrial emissions

KW - CFCs

KW - global regulation

U2 - 10.1021/acs.est.2c02592

DO - 10.1021/acs.est.2c02592

M3 - Journal article

VL - 56

SP - 11246

EP - 11255

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 0013-936X

IS - 16

ER -