Journal article
Atmospheric Trace Metal Deposition near the Great Barrier Reef, Australia
Michal Strzelec, Bernadette C Proemse, Melanie Gault-Ringold, Philip W Boyd, Morgane MG Perron, Robyn Schofield, Robert G Ryan, Zoran D Ristovski, Joel Alroe, Ruhi S Humphries, Melita D Keywood, Jason Ward, Andrew R Bowie
ATMOSPHERE | MDPI | Published : 2020
Abstract
Aerosols deposited into the Great Barrier Reef (GBR) contain iron (Fe) and other trace metals, which may act as micronutrients or as toxins to this sensitive marine ecosystem. In this paper, we quantified the atmospheric deposition of Fe and investigated aerosol sources in Mission Beach (Queensland) next to the GBR. Leaching experiments were applied to distinguish pools of Fe with regard to its solubility. The labile Fe concentration in aerosols was 2.3-10.6 ng m-3, which is equivalent to 4.9-11.4% of total Fe and was linked to combustion and biomass burning processes, while total Fe was dominated by crustal sources. A one-day precipitation event provided more soluble iron than the average d..
View full abstractGrants
Awarded by Australian Research Council Future Fellowship
Awarded by ARC Linkage, Infrastructure, Equipment and Facilities
Awarded by Antarctic Climate & Ecosystems Cooperative Research Centre, an ARC Discovery Project
Awarded by ARC Centre of Excellence for Climate System Science
Funding Acknowledgements
This work was supported by an Australian Research Council Future Fellowship to A.R.B. (FT130100037), an ARC Linkage, Infrastructure, Equipment and Facilities (LE150100048), the Antarctic Climate & Ecosystems Cooperative Research Centre, an ARC Discovery Project (DP150101649) to Z.D.R. and the ARC Centre of Excellence for Climate System Science (CE110001028) grants to R.S.