Variations in lead isotopes in Antarctic snow from northern Victoria Land during 2012–2015
Abstract To evaluate recent changes in anthropogenic Pb pollution and its sources and origins in Antarctica, Pb and Ba concentrations and Pb isotopic compositions were determined in a continuous series of 40 snow samples from a 2-m deep snow pit, covering 4 full years from 2011/12 summer to 2015/16...
Published in: | Environmental Research Communications |
---|---|
Main Authors: | , , , , , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
IOP Publishing
2022
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1088/2515-7620/ac6cd1 https://iopscience.iop.org/article/10.1088/2515-7620/ac6cd1 https://iopscience.iop.org/article/10.1088/2515-7620/ac6cd1/pdf |
id |
crioppubl:10.1088/2515-7620/ac6cd1 |
---|---|
record_format |
openpolar |
spelling |
crioppubl:10.1088/2515-7620/ac6cd1 2024-06-02T07:57:43+00:00 Variations in lead isotopes in Antarctic snow from northern Victoria Land during 2012–2015 Han, Changhee Kim, Songyi Lee, Ah-Hyung Han, Yeongcheol Lee, Seungmi Chang, Chaewon Hong, Sungmin Jung, Hyejin Hong, Sang-Bum Lee, Jeonghoon Hur, Soon Do Korea Polar Research Institute National Research Foundation of Korea 2022 http://dx.doi.org/10.1088/2515-7620/ac6cd1 https://iopscience.iop.org/article/10.1088/2515-7620/ac6cd1 https://iopscience.iop.org/article/10.1088/2515-7620/ac6cd1/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0/ https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Communications volume 4, issue 5, page 055006 ISSN 2515-7620 journal-article 2022 crioppubl https://doi.org/10.1088/2515-7620/ac6cd1 2024-05-07T13:53:52Z Abstract To evaluate recent changes in anthropogenic Pb pollution and its sources and origins in Antarctica, Pb and Ba concentrations and Pb isotopic compositions were determined in a continuous series of 40 snow samples from a 2-m deep snow pit, covering 4 full years from 2011/12 summer to 2015/16 summer, at the Hercules Névé plateau in Victoria Land, Antarctica. The results show that more than 90% of the atmospheric Pb deposited in Victoria Land was of noncrustal origin. This result implies the persistence of a significant human impact on the atmospheric cycle of Pb in the most remote places on Earth, despite a substantial reduction in anthropogenic Pb emissions in the Southern Hemisphere during recent years. The Pb isotopic fingerprints indicate that South America, particularly Brazil and Chile, has become a major source of anthropogenic Pb reaching Victoria Land. Our data highlight the need for both national and international measures to further reduce Pb emissions. Article in Journal/Newspaper Antarc* Antarctic Antarctica Victoria Land IOP Publishing Antarctic Hercules ENVELOPE(161.450,161.450,-77.483,-77.483) Hercules Névé ENVELOPE(165.250,165.250,-73.067,-73.067) Victoria Land Environmental Research Communications 4 5 055006 |
institution |
Open Polar |
collection |
IOP Publishing |
op_collection_id |
crioppubl |
language |
unknown |
description |
Abstract To evaluate recent changes in anthropogenic Pb pollution and its sources and origins in Antarctica, Pb and Ba concentrations and Pb isotopic compositions were determined in a continuous series of 40 snow samples from a 2-m deep snow pit, covering 4 full years from 2011/12 summer to 2015/16 summer, at the Hercules Névé plateau in Victoria Land, Antarctica. The results show that more than 90% of the atmospheric Pb deposited in Victoria Land was of noncrustal origin. This result implies the persistence of a significant human impact on the atmospheric cycle of Pb in the most remote places on Earth, despite a substantial reduction in anthropogenic Pb emissions in the Southern Hemisphere during recent years. The Pb isotopic fingerprints indicate that South America, particularly Brazil and Chile, has become a major source of anthropogenic Pb reaching Victoria Land. Our data highlight the need for both national and international measures to further reduce Pb emissions. |
author2 |
Korea Polar Research Institute National Research Foundation of Korea |
format |
Article in Journal/Newspaper |
author |
Han, Changhee Kim, Songyi Lee, Ah-Hyung Han, Yeongcheol Lee, Seungmi Chang, Chaewon Hong, Sungmin Jung, Hyejin Hong, Sang-Bum Lee, Jeonghoon Hur, Soon Do |
spellingShingle |
Han, Changhee Kim, Songyi Lee, Ah-Hyung Han, Yeongcheol Lee, Seungmi Chang, Chaewon Hong, Sungmin Jung, Hyejin Hong, Sang-Bum Lee, Jeonghoon Hur, Soon Do Variations in lead isotopes in Antarctic snow from northern Victoria Land during 2012–2015 |
author_facet |
Han, Changhee Kim, Songyi Lee, Ah-Hyung Han, Yeongcheol Lee, Seungmi Chang, Chaewon Hong, Sungmin Jung, Hyejin Hong, Sang-Bum Lee, Jeonghoon Hur, Soon Do |
author_sort |
Han, Changhee |
title |
Variations in lead isotopes in Antarctic snow from northern Victoria Land during 2012–2015 |
title_short |
Variations in lead isotopes in Antarctic snow from northern Victoria Land during 2012–2015 |
title_full |
Variations in lead isotopes in Antarctic snow from northern Victoria Land during 2012–2015 |
title_fullStr |
Variations in lead isotopes in Antarctic snow from northern Victoria Land during 2012–2015 |
title_full_unstemmed |
Variations in lead isotopes in Antarctic snow from northern Victoria Land during 2012–2015 |
title_sort |
variations in lead isotopes in antarctic snow from northern victoria land during 2012–2015 |
publisher |
IOP Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1088/2515-7620/ac6cd1 https://iopscience.iop.org/article/10.1088/2515-7620/ac6cd1 https://iopscience.iop.org/article/10.1088/2515-7620/ac6cd1/pdf |
long_lat |
ENVELOPE(161.450,161.450,-77.483,-77.483) ENVELOPE(165.250,165.250,-73.067,-73.067) |
geographic |
Antarctic Hercules Hercules Névé Victoria Land |
geographic_facet |
Antarctic Hercules Hercules Névé Victoria Land |
genre |
Antarc* Antarctic Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Victoria Land |
op_source |
Environmental Research Communications volume 4, issue 5, page 055006 ISSN 2515-7620 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/2515-7620/ac6cd1 |
container_title |
Environmental Research Communications |
container_volume |
4 |
container_issue |
5 |
container_start_page |
055006 |
_version_ |
1800740918106521600 |