Antarctic-Wide Array of High-Resolution Ice Core Records Reveals Pervasive Lead Pollution Began in 1889 and Persists Today
Interior Antarctica is among the most remote places on Earth and was thought to be beyond the reach of human impacts when Amundsen and Scott raced to the South Pole in 1911. Here we show detailed measurements from an extensive array of 16 ice cores quantifying substantial toxic heavy metal lead poll...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20150001454 2023-05-15T13:33:56+02:00 Antarctic-Wide Array of High-Resolution Ice Core Records Reveals Pervasive Lead Pollution Began in 1889 and Persists Today Edwards, R. Anschutz, H. Layman, L. Neumann, Thomas Allen Maselli, O. J. Vallelonga, P. Thomas, E. R. Curran, M. A. J. McConnell, J. R. Das, S. B. Kipfstuhl, S. Sigl, M. Bales, R. C. Unclassified, Unlimited, Publicly available July 28, 2014 application/pdf http://hdl.handle.net/2060/20150001454 unknown Document ID: 20150001454 http://hdl.handle.net/2060/20150001454 Copyright, Distribution as joint owner in the copyright CASI Geosciences (General) GSFC-E-DAA-TN19587 Scientific Reports; 4; 5848 2014 ftnasantrs 2019-07-21T00:18:46Z Interior Antarctica is among the most remote places on Earth and was thought to be beyond the reach of human impacts when Amundsen and Scott raced to the South Pole in 1911. Here we show detailed measurements from an extensive array of 16 ice cores quantifying substantial toxic heavy metal lead pollution at South Pole and throughout Antarctica by 1889 - beating polar explorers by more than 22 years. Unlike the Arctic where lead pollution peaked in the 1970s, lead pollution in Antarctica was as high in the early 20th century as at any time since industrialization. The similar timing and magnitude of changes in lead deposition across Antarctica, as well as the characteristic isotopic signature of Broken Hill lead found throughout the continent, suggest that this single emission source in southern Australia was responsible for the introduction of lead pollution into Antarctica at the end of the 19th century and remains a significant source today. An estimated 660 t of industrial lead have been deposited over Antarctica during the past 130 years as a result of mid-latitude industrial emissions, with regional-to-global scale circulation likely modulating aerosol concentrations. Despite abatement efforts, significant lead pollution in Antarctica persists into the 21st century. Other/Unknown Material Antarc* Antarctic Antarctica Arctic ice core South pole South pole NASA Technical Reports Server (NTRS) Antarctic Arctic South Pole |
institution |
Open Polar |
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NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Geosciences (General) |
spellingShingle |
Geosciences (General) Edwards, R. Anschutz, H. Layman, L. Neumann, Thomas Allen Maselli, O. J. Vallelonga, P. Thomas, E. R. Curran, M. A. J. McConnell, J. R. Das, S. B. Kipfstuhl, S. Sigl, M. Bales, R. C. Antarctic-Wide Array of High-Resolution Ice Core Records Reveals Pervasive Lead Pollution Began in 1889 and Persists Today |
topic_facet |
Geosciences (General) |
description |
Interior Antarctica is among the most remote places on Earth and was thought to be beyond the reach of human impacts when Amundsen and Scott raced to the South Pole in 1911. Here we show detailed measurements from an extensive array of 16 ice cores quantifying substantial toxic heavy metal lead pollution at South Pole and throughout Antarctica by 1889 - beating polar explorers by more than 22 years. Unlike the Arctic where lead pollution peaked in the 1970s, lead pollution in Antarctica was as high in the early 20th century as at any time since industrialization. The similar timing and magnitude of changes in lead deposition across Antarctica, as well as the characteristic isotopic signature of Broken Hill lead found throughout the continent, suggest that this single emission source in southern Australia was responsible for the introduction of lead pollution into Antarctica at the end of the 19th century and remains a significant source today. An estimated 660 t of industrial lead have been deposited over Antarctica during the past 130 years as a result of mid-latitude industrial emissions, with regional-to-global scale circulation likely modulating aerosol concentrations. Despite abatement efforts, significant lead pollution in Antarctica persists into the 21st century. |
format |
Other/Unknown Material |
author |
Edwards, R. Anschutz, H. Layman, L. Neumann, Thomas Allen Maselli, O. J. Vallelonga, P. Thomas, E. R. Curran, M. A. J. McConnell, J. R. Das, S. B. Kipfstuhl, S. Sigl, M. Bales, R. C. |
author_facet |
Edwards, R. Anschutz, H. Layman, L. Neumann, Thomas Allen Maselli, O. J. Vallelonga, P. Thomas, E. R. Curran, M. A. J. McConnell, J. R. Das, S. B. Kipfstuhl, S. Sigl, M. Bales, R. C. |
author_sort |
Edwards, R. |
title |
Antarctic-Wide Array of High-Resolution Ice Core Records Reveals Pervasive Lead Pollution Began in 1889 and Persists Today |
title_short |
Antarctic-Wide Array of High-Resolution Ice Core Records Reveals Pervasive Lead Pollution Began in 1889 and Persists Today |
title_full |
Antarctic-Wide Array of High-Resolution Ice Core Records Reveals Pervasive Lead Pollution Began in 1889 and Persists Today |
title_fullStr |
Antarctic-Wide Array of High-Resolution Ice Core Records Reveals Pervasive Lead Pollution Began in 1889 and Persists Today |
title_full_unstemmed |
Antarctic-Wide Array of High-Resolution Ice Core Records Reveals Pervasive Lead Pollution Began in 1889 and Persists Today |
title_sort |
antarctic-wide array of high-resolution ice core records reveals pervasive lead pollution began in 1889 and persists today |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20150001454 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic Arctic South Pole |
geographic_facet |
Antarctic Arctic South Pole |
genre |
Antarc* Antarctic Antarctica Arctic ice core South pole South pole |
genre_facet |
Antarc* Antarctic Antarctica Arctic ice core South pole South pole |
op_source |
CASI |
op_relation |
Document ID: 20150001454 http://hdl.handle.net/2060/20150001454 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766047188983480320 |