Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica
During the 2010-2011 austral summer, size-segregated aerosol samples were collected at a coastal Antarctic site (Terra Nova Bay, Victoria Land) and analysed for major and trace elements and lead isotopic composition, in order to provide a better understanding of the sources of metals and their trans...
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ftunivgent:oai:archive.ugent.be:6861403 2023-06-11T04:06:21+02:00 Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica Bazzano, Andrea Soggia, Francesco Grotti, Marco 2015 https://biblio.ugent.be/publication/6861403 http://hdl.handle.net/1854/LU-6861403 https://doi.org/10.1071/EN14185 eng eng https://biblio.ugent.be/publication/6861403 http://hdl.handle.net/1854/LU-6861403 http://dx.doi.org/10.1071/EN14185 ENVIRONMENTAL CHEMISTRY ISSN: 1448-2517 Earth and Environmental Sciences EAST ANTARCTICA ISOTOPIC SOURCE SIGNATURES DOME-C SOUTHERN-HEMISPHERE TRACE-ELEMENTS LEAD ISOTOPES COATS LAND AEROSOL SNOW WIND journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftunivgent https://doi.org/10.1071/EN14185 2023-05-10T22:29:45Z During the 2010-2011 austral summer, size-segregated aerosol samples were collected at a coastal Antarctic site (Terra Nova Bay, Victoria Land) and analysed for major and trace elements and lead isotopic composition, in order to provide a better understanding of the sources of metals and their transportation pathways towards Antarctica. Aerosol size fractionation was performed by a cascade impactor, able to collect aerosol particles of aerodynamic diameter 10-7.2, 7.2-3.0, 3.0-1.5, 1.5-0.95 and 0.95-0.49 mu m. It was found that Al, Co, Fe, Li, Mn, Rb, Y and V were mainly related to crustal inputs, whereas the marine contribution was significant for Li, Mg, Na and Rb. An additional anthropogenic source influencing the concentration of Cr, Cu, Mo and Pb was clearly demonstrated. The concentration of the elements associated to the crustal and marine inputs showed high values in the coarse mode (7.2-3.0 mu m), whereas the anthropogenic elements were also characterised by a high concentration in the finer (1.5-0.95 mu m) particles. The study of the temporal trends of the measured chemical markers along with the meteorological variables revealed that both the crustal and anthropogenic elements were related to the air masses carried by the katabatic wind from the inland, whereas the marine input appeared to be higher in January when the sea-ice extent was reduced. Finally, lead isotope ratios pointed out that the anthropogenic input was likely related to the polluted aerosols from South America and Australia, representing the predominant fraction (50-70%) of the lead measured in the samples. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Sea ice Victoria Land Ghent University Academic Bibliography Antarctic East Antarctica Austral Victoria Land Terra Nova Bay Coats Land ENVELOPE(-27.500,-27.500,-77.000,-77.000) Environmental Chemistry 12 2 245 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences EAST ANTARCTICA ISOTOPIC SOURCE SIGNATURES DOME-C SOUTHERN-HEMISPHERE TRACE-ELEMENTS LEAD ISOTOPES COATS LAND AEROSOL SNOW WIND |
spellingShingle |
Earth and Environmental Sciences EAST ANTARCTICA ISOTOPIC SOURCE SIGNATURES DOME-C SOUTHERN-HEMISPHERE TRACE-ELEMENTS LEAD ISOTOPES COATS LAND AEROSOL SNOW WIND Bazzano, Andrea Soggia, Francesco Grotti, Marco Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica |
topic_facet |
Earth and Environmental Sciences EAST ANTARCTICA ISOTOPIC SOURCE SIGNATURES DOME-C SOUTHERN-HEMISPHERE TRACE-ELEMENTS LEAD ISOTOPES COATS LAND AEROSOL SNOW WIND |
description |
During the 2010-2011 austral summer, size-segregated aerosol samples were collected at a coastal Antarctic site (Terra Nova Bay, Victoria Land) and analysed for major and trace elements and lead isotopic composition, in order to provide a better understanding of the sources of metals and their transportation pathways towards Antarctica. Aerosol size fractionation was performed by a cascade impactor, able to collect aerosol particles of aerodynamic diameter 10-7.2, 7.2-3.0, 3.0-1.5, 1.5-0.95 and 0.95-0.49 mu m. It was found that Al, Co, Fe, Li, Mn, Rb, Y and V were mainly related to crustal inputs, whereas the marine contribution was significant for Li, Mg, Na and Rb. An additional anthropogenic source influencing the concentration of Cr, Cu, Mo and Pb was clearly demonstrated. The concentration of the elements associated to the crustal and marine inputs showed high values in the coarse mode (7.2-3.0 mu m), whereas the anthropogenic elements were also characterised by a high concentration in the finer (1.5-0.95 mu m) particles. The study of the temporal trends of the measured chemical markers along with the meteorological variables revealed that both the crustal and anthropogenic elements were related to the air masses carried by the katabatic wind from the inland, whereas the marine input appeared to be higher in January when the sea-ice extent was reduced. Finally, lead isotope ratios pointed out that the anthropogenic input was likely related to the polluted aerosols from South America and Australia, representing the predominant fraction (50-70%) of the lead measured in the samples. |
format |
Article in Journal/Newspaper |
author |
Bazzano, Andrea Soggia, Francesco Grotti, Marco |
author_facet |
Bazzano, Andrea Soggia, Francesco Grotti, Marco |
author_sort |
Bazzano, Andrea |
title |
Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica |
title_short |
Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica |
title_full |
Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica |
title_fullStr |
Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica |
title_full_unstemmed |
Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica |
title_sort |
source identification of atmospheric particle-bound metals at terra nova bay, antarctica |
publishDate |
2015 |
url |
https://biblio.ugent.be/publication/6861403 http://hdl.handle.net/1854/LU-6861403 https://doi.org/10.1071/EN14185 |
long_lat |
ENVELOPE(-27.500,-27.500,-77.000,-77.000) |
geographic |
Antarctic East Antarctica Austral Victoria Land Terra Nova Bay Coats Land |
geographic_facet |
Antarctic East Antarctica Austral Victoria Land Terra Nova Bay Coats Land |
genre |
Antarc* Antarctic Antarctica East Antarctica Sea ice Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Sea ice Victoria Land |
op_source |
ENVIRONMENTAL CHEMISTRY ISSN: 1448-2517 |
op_relation |
https://biblio.ugent.be/publication/6861403 http://hdl.handle.net/1854/LU-6861403 http://dx.doi.org/10.1071/EN14185 |
op_doi |
https://doi.org/10.1071/EN14185 |
container_title |
Environmental Chemistry |
container_volume |
12 |
container_issue |
2 |
container_start_page |
245 |
_version_ |
1768378249641984000 |