Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 5.668 IF 5.668
  • IF 5-year value: 6.201 IF 5-year
    6.201
  • CiteScore value: 6.13 CiteScore
    6.13
  • SNIP value: 1.633 SNIP 1.633
  • IPP value: 5.91 IPP 5.91
  • SJR value: 2.938 SJR 2.938
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 174 Scimago H
    index 174
  • h5-index value: 87 h5-index 87
Discussion papers
https://doi.org/10.5194/acp-2019-347
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2019-347
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: review article 13 May 2019

Submitted as: review article | 13 May 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Chemistry and Physics (ACP).

Global deposition of speciated atmospheric mercury to terrestrial surfaces: an overview

Lei Zhang1,2, Peisheng Zhou1, Shuzhen Cao1, and Yu Zhao1,2 Lei Zhang et al.
  • 1School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
  • 2State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China

Abstract. One of the most important processes in the global mercury biogeochemical cycling is the deposition of atmospheric mercury, including gaseous elemental mercury (GEM), gaseous oxidized mercury (GOM), and particulate-bound mercury (PBM), to terrestrial surfaces. In this paper, methods for the observation of wet, dry, litterfall, throughfall, and cloud/fog deposition and models for mercury dry deposition are reviewed. Surrogate surface methods with cation exchange membranes are widely used for GOM dry deposition measurements, while observation methods for GEM dry deposition are more diverse. The methodology for Hg wet deposition is more mature, but the influence of cloud/fog scavenging is easy to neglect. Dry deposition models for speciated mercury have high uncertainties owing to the presence of sensitive parameters related to GOM chemical forms. Observation networks for mercury wet deposition have been developed worldwide, with the Global Mercury Observation System (GMOS) covering the northern hemisphere, the tropics, and the southern hemisphere. Wet deposition implies the spatial distribution of atmospheric mercury pollution, while GOM dry deposition depends highly on the elevation. Litterfall Hg deposition is crucial to forests. Urban areas have high wet deposition and PBM dry deposition because of high reactive mercury levels. Grasslands and forests have significant GOM and GEM dry deposition, respectively. Evergreen broadleaf forests bear high litterfall Hg deposition. Future research needs have been proposed based on the current knowledge of global mercury deposition to terrestrial surfaces.

Lei Zhang et al.
Interactive discussion
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for Authors/Co-Editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Lei Zhang et al.
Lei Zhang et al.
Viewed  
Total article views: 290 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
214 68 8 290 4 7
  • HTML: 214
  • PDF: 68
  • XML: 8
  • Total: 290
  • BibTeX: 4
  • EndNote: 7
Views and downloads (calculated since 13 May 2019)
Cumulative views and downloads (calculated since 13 May 2019)
Viewed (geographical distribution)  
Total article views: 244 (including HTML, PDF, and XML) Thereof 242 with geography defined and 2 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 16 Aug 2019
Publications Copernicus
Download
Short summary
One of the most important processes in the global mercury biogeochemical cycling is the deposition of atmospheric mercury to terrestrial surfaces. In this paper, methods for the observation of different Hg deposition types and models for mercury dry deposition are reviewed. Results from worldwide observation networks for mercury have been summarized. Future research needs have been proposed based on the current knowledge of global mercury deposition to terrestrial surfaces.
One of the most important processes in the global mercury biogeochemical cycling is the...
Citation