Articles | Volume 17, issue 18
https://doi.org/10.5194/acp-17-11623-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-11623-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
28 Sep 2017
Research article |
| 28 Sep 2017
Atmospheric mercury in the Southern Hemisphere tropics: seasonal and diurnal variations and influence of inter-hemispheric transport
Dean Howard
CORRESPONDING AUTHOR
Department of Environmental Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
Peter F. Nelson
Department of Environmental Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
Grant C. Edwards
Department of Environmental Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
Anthony L. Morrison
Department of Environmental Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
Jenny A. Fisher
Centre for Atmospheric Chemistry, School of Chemistry, University of Wollongong, Wollongong, New South Wales, 2552, Australia
School of Earth & Environmental Sciences, University of Wollongong, Wollongong, New South Wales, 2552, Australia
Jason Ward
Oceans and Atmosphere Flagship, Commonwealth Science and Industrial Research Organisation, Aspendale, Victoria, 3195, Australia
James Harnwell
Oceans and Atmosphere Flagship, Commonwealth Science and Industrial Research Organisation, Aspendale, Victoria, 3195, Australia
Marcel van der Schoot
Oceans and Atmosphere Flagship, Commonwealth Science and Industrial Research Organisation, Aspendale, Victoria, 3195, Australia
Brad Atkinson
Darwin Research Station, Bureau of Meteorology, Darwin, Northern Territory, 0810, Australia
Scott D. Chambers
Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Sydney, New South Wales, 2232, Australia
Alan D. Griffiths
Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Sydney, New South Wales, 2232, Australia
Sylvester Werczynski
Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Sydney, New South Wales, 2232, Australia
Alastair G. Williams
Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Sydney, New South Wales, 2232, Australia
Data sets
GEM data GMOS data repository http://gmos.eu/sdi/
Weather data Australian Bureau of Meteorology http://www.bom.gov.au/climate/data-services/
Short summary
Mercury, a toxic metal, can be transported globally through the atmosphere, with deposition to ecosystems an important pathway to human exposure. 2 years of atmospheric mercury monitoring in tropical Australia supports recent evidence that Southern Hemisphere concentrations are lower than previously thought. Exchange between the atmosphere and ecosystems can take place on daily scales, with night deposition offset by morning re-emission. This could be an important transport pathway for mercury.
Mercury, a toxic metal, can be transported globally through the atmosphere, with deposition to...
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