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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 17, issue 14 | Copyright

Special issue: Data collection, analysis and application of speciated atmospheric...

Atmos. Chem. Phys., 17, 9133-9144, 2017
https://doi.org/10.5194/acp-17-9133-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Review article 28 Jul 2017

Review article | 28 Jul 2017

A synthesis of research needs for improving the understanding of atmospheric mercury cycling

Leiming Zhang1, Seth Lyman2, Huiting Mao3, Che-Jen Lin4, David A. Gay5, Shuxiao Wang6, Mae Sexauer Gustin7, Xinbin Feng8, and Frank Wania9 Leiming Zhang et al.
  • 1Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, ON, Canada
  • 2Department of Chemistry and Biochemistry, Utah State University, Vernal, UT, USA
  • 3Department of Chemistry, State University of New York College of Environmental Science and Forestry, Syracuse, NY, USA
  • 4Center for Advances in Water and Air Quality, Lamar University, Beaumont, TX, USA
  • 5National Atmospheric Deposition Program, University of Illinois, Champaign, IL, USA
  • 6School of Environment, Tsinghua University, Beijing, China
  • 7Department of Natural Resources and Environmental Science, University of Nevada, Reno, NV, USA
  • 8Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
  • 9Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON, Canada

Abstract. This synthesis identifies future research needs in atmospheric mercury science, based on a series of review papers, as well as recent developments in field data collection, modeling analysis, and emission assessments of speciated atmospheric mercury. Research activities are proposed that focus on areas that we consider important. These include refinement of mercury emission estimations, quantification of dry deposition and air–surface exchange, improvement of the treatment of chemical mechanisms in chemical transport models, increase in the accuracy of oxidized mercury measurements, better interpretation of atmospheric mercury chemistry data, and harmonization of network operation. Knowledge gained in these research areas will significantly improve our understanding of atmospheric cycling from local to global scales.

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Future research needs are proposed for improving the understanding of atmospheric mercury cycling. These include refinement of mercury emission estimations, quantification of dry deposition and air–surface exchange, improvement of the treatment of chemical mechanisms in chemical transport models, increase in the accuracy of oxidized mercury measurements, better interpretation of atmospheric mercury chemistry data, and harmonization of network operation.
Future research needs are proposed for improving the understanding of atmospheric mercury...
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