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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in rivista anno 2013

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Monitoring of gaseous elemental mercury in central Antarctica at Dome Concordia.

Anno di pubblicazione: 2013

Formato: Elettronico

Autori: Dommergue, A., Ferrari, C.P. Magand, O. Barret, M. Gratz, L., Pirrone, N., Sprovieri, F.

Affiliazioni autori: CNR-IIA; UJF - Grenoble 1 / CNRS, Laboratoire de Glaciologie et Géophysique de l'Environnement (LGGE) UMR 5183, Grenoble, F-38041, France.

Autori CNR:

  • LYNNE GRATZ
  • NICOLA PIRRONE
  • FRANCESCA SPROVIERI

Lingua: inglese

Abstract: Within the framework of the Global Mercury Observation System (GMOS), we are monitoring gaseous elemental mercury (Hg(0)) at the Dome Concordia Station to improve our understanding of atmospheric Hg in the Antarctic atmosphere. This French-Italian facility is located in one of the coldest places on the planet and is situated on the vast Antarctic Plateau at an elevation of 3320 m. Continuous measurements began on December 7, 2011 and are ongoing. The median value calculated over the period (n=24506) is approximately 0.9 ng/m3 and values range from <0.1 ng/m3 up to 2.3 ng/m3. Preliminary results suggest that the Antarctic atmospheric boundary layer is a very reactive place during the periods when sunlight is present. A combination of fast and efficient oxidation processes with snow photochemistry lead to a dynamic record of Hg(0) unlike any other location. Our improved understanding of these processes will help to better constrain the cycle of Hg in the Southern Hemisphere.

Lingua abstract: inglese

Pagine da: 17003

Pagine a: 17006

Pagine totali: 4

Rivista:

E3S Web of Conferences EDP Sciences - Web of Conferences
Paese di pubblicazione: Francia
Lingua: inglese
ISSN: 2267-1242

DOI: 10.1051/e3sconf/20130117003

Referee: Sì: Internazionale

Stato della pubblicazione: Published version

Parole chiave:

  • gaseous elemental mercury
  • Antarctica
  • Polar Regions
  • GMOS

URL: http://dx.doi.org/10.1051/e3sconf/20130117003

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