Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017)
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...
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Online Access: | https://publications.hereon.de/id/50674 https://publications.hzg.de/id/50674 https://doi.org/10.1021/acs.est.2c02592 |
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fthzgzmk:oai:publications.hereon.de:50674 2023-06-11T04:05:49+02:00 Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017) Garnett, J. Halsall, C. Winton, H. Joerss, H. Mulvaney, R. Ebinghaus, R. Frey, M. Jones, A. Lesson, A. Wynn, P. 2022 https://publications.hereon.de/id/50674 https://publications.hzg.de/id/50674 https://doi.org/10.1021/acs.est.2c02592 en eng ACS https://dx.doi.org/10.1021/acs.est.2c02592 urn:issn:0013-936X https://publications.hereon.de/id/50674 https://publications.hzg.de/id/50674 info:eu-repo/semantics/openAccess open_access oa_allgemein_hybrid issn:0013-936X Garnett, J.; Halsall, C.; Winton, H.; Joerss, H.; Mulvaney, R.; Ebinghaus, R.; Frey, M.; Jones, A.; Lesson, A.; Wynn, P.: Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017). In: Environmental Science and Technology. Vol. 56 (2022) 16, 11246 - 11255. (DOI: /10.1021/acs.est.2c02592) info:eu-repo/semantics/article Zeitschrift Artikel 2022 fthzgzmk https://doi.org/10.1021/acs.est.2c02592 2023-05-28T23:25:31Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Dronning Maud Land Hereon Publications (Helmholtz-Zentrum) Antarctic Arctic Dronning Maud Land Environmental Science & Technology 56 16 11246 11255 |
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Open Polar |
collection |
Hereon Publications (Helmholtz-Zentrum) |
op_collection_id |
fthzgzmk |
language |
English |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Garnett, J. Halsall, C. Winton, H. Joerss, H. Mulvaney, R. Ebinghaus, R. Frey, M. Jones, A. Lesson, A. Wynn, P. |
spellingShingle |
Garnett, J. Halsall, C. Winton, H. Joerss, H. Mulvaney, R. Ebinghaus, R. Frey, M. Jones, A. Lesson, A. Wynn, P. Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017) |
author_facet |
Garnett, J. Halsall, C. Winton, H. Joerss, H. Mulvaney, R. Ebinghaus, R. Frey, M. Jones, A. Lesson, A. Wynn, P. |
author_sort |
Garnett, J. |
title |
Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017) |
title_short |
Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017) |
title_full |
Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017) |
title_fullStr |
Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017) |
title_full_unstemmed |
Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017) |
title_sort |
increasing accumulation of perfluorocarboxylate contaminants revealed in an antarctic firn core (1958–2017) |
publisher |
ACS |
publishDate |
2022 |
url |
https://publications.hereon.de/id/50674 https://publications.hzg.de/id/50674 https://doi.org/10.1021/acs.est.2c02592 |
geographic |
Antarctic Arctic Dronning Maud Land |
geographic_facet |
Antarctic Arctic Dronning Maud Land |
genre |
Antarc* Antarctic Antarctica Arctic Dronning Maud Land |
genre_facet |
Antarc* Antarctic Antarctica Arctic Dronning Maud Land |
op_source |
issn:0013-936X Garnett, J.; Halsall, C.; Winton, H.; Joerss, H.; Mulvaney, R.; Ebinghaus, R.; Frey, M.; Jones, A.; Lesson, A.; Wynn, P.: Increasing Accumulation of Perfluorocarboxylate Contaminants Revealed in an Antarctic Firn Core (1958–2017). In: Environmental Science and Technology. Vol. 56 (2022) 16, 11246 - 11255. (DOI: /10.1021/acs.est.2c02592) |
op_relation |
https://dx.doi.org/10.1021/acs.est.2c02592 urn:issn:0013-936X https://publications.hereon.de/id/50674 https://publications.hzg.de/id/50674 |
op_rights |
info:eu-repo/semantics/openAccess open_access oa_allgemein_hybrid |
op_doi |
https://doi.org/10.1021/acs.est.2c02592 |
container_title |
Environmental Science & Technology |
container_volume |
56 |
container_issue |
16 |
container_start_page |
11246 |
op_container_end_page |
11255 |
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1768377476684185600 |