Articles | Volume 16, issue 19
https://doi.org/10.5194/acp-16-12829-2016
© Author(s) 2016. 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-16-12829-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
14 Oct 2016
Research article |
| 14 Oct 2016
Dry season aerosol iron solubility in tropical northern Australia
Physics and Astronomy, Curtin University, Perth, Western Australia, Australia
now at: British Antarctic Survey, Cambridge, UK
Ross Edwards
Physics and Astronomy, Curtin University, Perth, Western Australia, Australia
Andrew R. Bowie
Antarctic Climate and Ecosystems CRC, University of Tasmania, Hobart, Tasmania, Australia
Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Melita Keywood
CSIRO, Ocean and Atmosphere, Aspendale, Victoria, Australia
Alistair G. Williams
Australian Nuclear Science and Technology Organisation, Sydney, New South Wales, Australia
Scott D. Chambers
Australian Nuclear Science and Technology Organisation, Sydney, New South Wales, Australia
Paul W. Selleck
CSIRO, Ocean and Atmosphere, Aspendale, Victoria, Australia
Maximilien Desservettaz
Centre for Atmospheric Chemistry, University of Wollongong, Wollongong, New South Wales, Australia
Marc D. Mallet
Department of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland, Australia
Clare Paton-Walsh
Centre for Atmospheric Chemistry, University of Wollongong, Wollongong, New South Wales, Australia
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Revised manuscript not accepted
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The deposition of soluble aerosol iron (Fe) can initiate nitrogen fixation and trigger toxic algal blooms in nitrate-poor tropical waters. We present dry season soluble Fe data from northern Australia that reflect coincident dust and biomass burning sources of soluble Fe. Our results show that while biomass burning species are not a direct source of soluble Fe, biomass burning may substantially enhance the solubility of mineral dust with fractional Fe solubility up to 12 % in mixed aerosols.
The deposition of soluble aerosol iron (Fe) can initiate nitrogen fixation and trigger toxic...
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