Identifying the key sources of metal (loid) deposition to remote Tasmanian lakes: is legacy mining a problem?

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dc.contributor.authorStevens, Hen_AU
dc.contributor.authorBarmuta, LAen_AU
dc.contributor.authorChase, Zen_AU
dc.contributor.authorSaunders, KMen_AU
dc.contributor.authorZawadzki, Aen_AU
dc.contributor.authorGadd, PSen_AU
dc.contributor.authorProemse, BCen_AU
dc.date.accessioned2025-02-14T02:44:11Zen_AU
dc.date.available2025-02-14T02:44:11Zen_AU
dc.date.issued0202-03-07en_AU
dc.date.statistics2025-02-05en_AU
dc.description.abstractReports have shown that even remote lakes have been negatively affected by anthropogenic activities. This study used metal concentrations and enrichment factors to comprehensively determine key metal sources and identify potential impacts of recent anthropogenic activity in remote Central Highland Tasmanian (Australia) lakes. Metal concentrations (Al, As, Cd, Cu, Fe, Pb, and Zn) in these lakes remain below Australian interim sediment quality guidelines but have been slowly increasing since the start of the twentieth century. This increase is likely related to increasing organic matter content, rather than any direct, increased input of metals. The largest anthropogenic impact to these systems was damming, which typically led to an increase in organic matter content either directly, by the trapping of particles and nutrients, or indirectly, by stimulating primary production in the lake. This increased organic matter content, in turn, increased the retention of metals, manifesting as an increase to measured metal concentrations. Minor impacts are the historical use of lead shot, leaded petrol, and industrial processes, which may have contributed to the higher Pb enrichment, compared to the other studied metals, in these lakes. Despite recent concerns of metal contamination in the Tasmanian Wilderness World Heritage Area from distant mining activities, there is no strong evidence in this study indicating that lakes in the Central Highlands (a similar distance away) have been impacted by long-distance atmospheric deposition. This is likely related to the decreased rainfall, and thus decreased rates of wet deposition of aerosols in the east of Tasmania, compared to that of the west and in the Tasmanian Wilderness World Heritage Area. © The Author(s) 2024. - Open Access - This article is licensed under a Creative Commons Attribution 4.0 International Licenseen_AU
dc.description.sponsorshipOpen Access funding enabled and organized by CAUL and its Member Institutions. Part of this work was funded by Tasmanian Minerals, Manufacturing and Energy Council. In-kind support was provided by Australian Nuclear Science and Technology Organisation (ANSTO) Research Portal Proposal AP13286 and Australian Institute for Nuclear Science and Engineering (AINSE) Research Award ALNGRA15533. Part of this work was funded by Australian Research Council Linkage Grant LP130100756. No funding source was involved in study design, in the interpretation of data, in the writing of the manuscript, or in the decision to submit the article for publication.en_AU
dc.identifier.citationStevens, H., Barmuta, L. A., Chase, Z., Saunders, K. M., Zawadzki, A., Gadd, P., & Proemse, B. C. (2024). Identifying the key sources of metal (loid) deposition to remote Tasmanian lakes: is legacy mining a problem? Journal of Paleolimnology, 71(3), 219-235. doi:10.1007/s10933-024-00315-1en_AU
dc.identifier.issn0921-2728en_AU
dc.identifier.issn1573-0417en_AU
dc.identifier.issue3-4en_AU
dc.identifier.journaltitleJournal of Paleolimnologyen_AU
dc.identifier.pagination219-235en_AU
dc.identifier.urihttps://doi.org/10.1007/s10933-024-00315-1en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15996en_AU
dc.identifier.volume71en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherSpringer Natureen_AU
dc.subjectMetalsen_AU
dc.subjectTasmaniaen_AU
dc.subjectLakesen_AU
dc.subjectMiningen_AU
dc.subjectAluminiumen_AU
dc.subjectArsenicen_AU
dc.subjectCadmiumen_AU
dc.subjectIronen_AU
dc.subjectZincen_AU
dc.subjectContaminationen_AU
dc.subjectSedimentsen_AU
dc.subjectWatershedsen_AU
dc.subjectAquatic ecosystemsen_AU
dc.subjectAustraliaen_AU
dc.subjectSouthern Hemisphereen_AU
dc.titleIdentifying the key sources of metal (loid) deposition to remote Tasmanian lakes: is legacy mining a problem?en_AU
dc.typeJournal Articleen_AU
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