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Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica

Andrea Bazzano, Francesco Soggia and Marco Grotti (2015) ENVIRONMENTAL CHEMISTRY. 12(2). p.245-252
abstract
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.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
EAST ANTARCTICA, ISOTOPIC SOURCE SIGNATURES, DOME-C, SOUTHERN-HEMISPHERE, TRACE-ELEMENTS, LEAD ISOTOPES, COATS LAND, AEROSOL, SNOW, WIND
journal title
ENVIRONMENTAL CHEMISTRY
Environ. Chem.
volume
12
issue
2
pages
245 - 252
Web of Science type
Article
Web of Science id
000351999300016
JCR category
ENVIRONMENTAL SCIENCES
JCR impact factor
2.455 (2015)
JCR rank
72/225 (2015)
JCR quartile
2 (2015)
ISSN
1448-2517
DOI
10.1071/EN14185
language
English
UGent publication?
no
classification
A1
id
6861403
handle
http://hdl.handle.net/1854/LU-6861403
date created
2015-07-02 16:17:30
date last changed
2016-12-19 15:39:11
@article{6861403,
  abstract     = {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.},
  author       = {Bazzano, Andrea and Soggia, Francesco and Grotti, Marco},
  issn         = {1448-2517},
  journal      = {ENVIRONMENTAL CHEMISTRY},
  keyword      = {EAST ANTARCTICA,ISOTOPIC SOURCE SIGNATURES,DOME-C,SOUTHERN-HEMISPHERE,TRACE-ELEMENTS,LEAD ISOTOPES,COATS LAND,AEROSOL,SNOW,WIND},
  language     = {eng},
  number       = {2},
  pages        = {245--252},
  title        = {Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica},
  url          = {http://dx.doi.org/10.1071/EN14185},
  volume       = {12},
  year         = {2015},
}

Chicago
Bazzano, Andrea, Francesco Soggia, and Marco Grotti. 2015. “Source Identification of Atmospheric Particle-bound Metals at Terra Nova Bay, Antarctica.” Environmental Chemistry 12 (2): 245–252.
APA
Bazzano, A., Soggia, F., & Grotti, M. (2015). Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica. ENVIRONMENTAL CHEMISTRY, 12(2), 245–252.
Vancouver
1.
Bazzano A, Soggia F, Grotti M. Source identification of atmospheric particle-bound metals at Terra Nova Bay, Antarctica. ENVIRONMENTAL CHEMISTRY. 2015;12(2):245–52.
MLA
Bazzano, Andrea, Francesco Soggia, and Marco Grotti. “Source Identification of Atmospheric Particle-bound Metals at Terra Nova Bay, Antarctica.” ENVIRONMENTAL CHEMISTRY 12.2 (2015): 245–252. Print.