A Chinese Imprint in Insoluble Pollutants Recently Deposited in Central Greenland As Indicated by Lead Isotopes
A unique ∼10 year record of the lead isotopic composition of airborne insoluble particulate matter deposited in central Greenland was extracted from recent snow layers at NorthGRIP (75.1°N, 042.3°W; elevation 2,959 m), spanning the years 1989–2001. Comparison with lead isotopic signatures of both na...
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ftdatacite:10.7916/d8z89bv7 2023-05-15T16:25:17+02:00 A Chinese Imprint in Insoluble Pollutants Recently Deposited in Central Greenland As Indicated by Lead Isotopes Bory, Aloys Jean-Mathias Abouchami, Wafa Galer, Stephen J. G. Svensson, Anders Christensen, John N. Biscaye, Pierre E. 2014 https://dx.doi.org/10.7916/d8z89bv7 https://academiccommons.columbia.edu/doi/10.7916/D8Z89BV7 unknown Columbia University https://dx.doi.org/10.1021/es4035655 Environmental sciences Chemistry Geochemistry CreativeWork article 2014 ftdatacite https://doi.org/10.7916/d8z89bv7 https://doi.org/10.1021/es4035655 2021-11-05T12:55:41Z A unique ∼10 year record of the lead isotopic composition of airborne insoluble particulate matter deposited in central Greenland was extracted from recent snow layers at NorthGRIP (75.1°N, 042.3°W; elevation 2,959 m), spanning the years 1989–2001. Comparison with lead isotopic signatures of both natural and anthropogenic northern hemisphere (NH) aerosol sources shows that human activities must have accounted for most of the insoluble lead deposited on Greenland during the late 1990s, exceeding by far the natural contribution from large Asian mineral dust inputs. Lead isotopes imply predominance with time of European/Canadian sources over U.S.-derived lead, with an admixed signature typical of Chinese anthropogenic lead sources. The relative contribution of the latter shows a marked seasonal increase during spring. Our record also suggests that China’s weight in the overall supply of insoluble pollutants deposited on Greenland was growing over the past decade of the 20th century. Article in Journal/Newspaper Greenland DataCite Metadata Store (German National Library of Science and Technology) Greenland |
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DataCite Metadata Store (German National Library of Science and Technology) |
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topic |
Environmental sciences Chemistry Geochemistry |
spellingShingle |
Environmental sciences Chemistry Geochemistry Bory, Aloys Jean-Mathias Abouchami, Wafa Galer, Stephen J. G. Svensson, Anders Christensen, John N. Biscaye, Pierre E. A Chinese Imprint in Insoluble Pollutants Recently Deposited in Central Greenland As Indicated by Lead Isotopes |
topic_facet |
Environmental sciences Chemistry Geochemistry |
description |
A unique ∼10 year record of the lead isotopic composition of airborne insoluble particulate matter deposited in central Greenland was extracted from recent snow layers at NorthGRIP (75.1°N, 042.3°W; elevation 2,959 m), spanning the years 1989–2001. Comparison with lead isotopic signatures of both natural and anthropogenic northern hemisphere (NH) aerosol sources shows that human activities must have accounted for most of the insoluble lead deposited on Greenland during the late 1990s, exceeding by far the natural contribution from large Asian mineral dust inputs. Lead isotopes imply predominance with time of European/Canadian sources over U.S.-derived lead, with an admixed signature typical of Chinese anthropogenic lead sources. The relative contribution of the latter shows a marked seasonal increase during spring. Our record also suggests that China’s weight in the overall supply of insoluble pollutants deposited on Greenland was growing over the past decade of the 20th century. |
format |
Article in Journal/Newspaper |
author |
Bory, Aloys Jean-Mathias Abouchami, Wafa Galer, Stephen J. G. Svensson, Anders Christensen, John N. Biscaye, Pierre E. |
author_facet |
Bory, Aloys Jean-Mathias Abouchami, Wafa Galer, Stephen J. G. Svensson, Anders Christensen, John N. Biscaye, Pierre E. |
author_sort |
Bory, Aloys Jean-Mathias |
title |
A Chinese Imprint in Insoluble Pollutants Recently Deposited in Central Greenland As Indicated by Lead Isotopes |
title_short |
A Chinese Imprint in Insoluble Pollutants Recently Deposited in Central Greenland As Indicated by Lead Isotopes |
title_full |
A Chinese Imprint in Insoluble Pollutants Recently Deposited in Central Greenland As Indicated by Lead Isotopes |
title_fullStr |
A Chinese Imprint in Insoluble Pollutants Recently Deposited in Central Greenland As Indicated by Lead Isotopes |
title_full_unstemmed |
A Chinese Imprint in Insoluble Pollutants Recently Deposited in Central Greenland As Indicated by Lead Isotopes |
title_sort |
chinese imprint in insoluble pollutants recently deposited in central greenland as indicated by lead isotopes |
publisher |
Columbia University |
publishDate |
2014 |
url |
https://dx.doi.org/10.7916/d8z89bv7 https://academiccommons.columbia.edu/doi/10.7916/D8Z89BV7 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
https://dx.doi.org/10.1021/es4035655 |
op_doi |
https://doi.org/10.7916/d8z89bv7 https://doi.org/10.1021/es4035655 |
_version_ |
1766014016513114112 |