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Journal Articles Atmospheric Chemistry and Physics Year : 2017

Five-year records of mercury wet deposition flux at GMOS sites in the Northern and Southern hemispheres

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Francesca Sprovieri
  • Function : Author
Nicola Pirrone
  • Function : Author
Mariantonia Bencardino
  • Function : Author
Francesco d'Amore
  • Function : Author
Carlo Barbante
  • Function : Author
Ernst-Günther Brunke
  • Function : Author
Flor Arcega-Cabrera
  • Function : Author
Warren Cairns
  • Function : Author
Sara Comero
  • Function : Author
María del Carmen Diéguez
  • Function : Author
Ralf Ebinghaus
  • Function : Author
Xin Bin Feng
  • Function : Author
Xuewu Fu
  • Function : Author
Patricia Elizabeth Garcia
  • Function : Author
Bernd Manfred Gawlik
  • Function : Author
Ulla Hageström
  • Function : Author
Katarina Hansson
  • Function : Author
Milena Horvat
  • Function : Author
Jože Kotnik
  • Function : Author
Casper Labuschagne
  • Function : Author
Lynwill Martin
  • Function : Author
Nikolay Mashyanov
  • Function : Author
Thumeka Mkololo
  • Function : Author
John Munthe
  • Function : Author
Vladimir Obolkin
  • Function : Author
Martha Ramirez Islas
  • Function : Author
Fabrizio Sena
  • Function : Author
Vernon Somerset
  • Function : Author
Pia Spandow
  • Function : Author
Massimiliano Vardè
  • Function : Author
Chavon Walters
  • Function : Author
Ingvar Wängberg
  • Function : Author
Andreas Weigelt
  • Function : Author
Xu Yang
  • Function : Author
Hui Zhang
  • Function : Author

Abstract

The atmospheric deposition of mercury (Hg) occurs via several mechanisms, including dry and wet scavenging by precipitation events. In an effort to understand the atmospheric cycling and seasonal depositional characteristics of Hg, wet deposition samples were collected for approximately 5 years at 17 selected GMOS monitoring sites located in the Northern and Southern hemispheres in the framework of the Global Mercury Observation System (GMOS) project. Total mercury (THg) exhibited annual and seasonal patterns in Hg wet deposition samples. Interannual differences in total wet deposition are mostly linked with precipitation volume, with the greatest deposition flux occurring in the wettest years. This data set provides a new insight into baseline concentrations of THg concentrations in precipitation worldwide, particularly in regions such as the Southern Hemisphere and tropical areas where wet deposition as well as atmospheric Hg species were not investigated before, opening the way for future and additional simultaneous measurements across the GMOS network as well as new findings in future modeling studies.
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insu-03706528 , version 1 (28-06-2022)

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Attribution - CC BY 4.0

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Francesca Sprovieri, Nicola Pirrone, Mariantonia Bencardino, Francesco d'Amore, Helene Angot, et al.. Five-year records of mercury wet deposition flux at GMOS sites in the Northern and Southern hemispheres. Atmospheric Chemistry and Physics, 2017, 17, pp.2689-2708. ⟨10.5194/acp-17-2689-2017⟩. ⟨insu-03706528⟩
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