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

Citation: Zhang, L., Lyman, S., Mao, H., Lin, C.-J., Gay, D. A., Wang, S., Sexauer Gustin, M., Feng, X., and Wania, F.: A synthesis of research needs for improving the understanding of atmospheric mercury cycling, Atmos. Chem. Phys., 17, 9133-9144, https://doi.org/10.5194/acp-17-9133-2017, 2017.
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Short summary
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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