A landscape-scale approach to examining the fate of atmospherically derived industrial metals in the surficial environment

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dc.contributor.authorHeijnis, Hen_AU
dc.contributor.authorStromsoe, Nen_AU
dc.contributor.authorMarx, SKen_AU
dc.contributor.authorMcGowan, HAen_AU
dc.contributor.authorCallow, JNen_AU
dc.contributor.authorZawadzki, Aen_AU
dc.date.accessioned2020-05-18T06:31:27Zen_AU
dc.date.available2020-05-18T06:31:27Zen_AU
dc.date.issued2015-02-01en_AU
dc.date.statistics2020-05-18en_AU
dc.descriptionAuthor Callow is shown in the citation as Nikolaus, however, his full name is John Nikolausen_AU
dc.description.abstractIndustrial metals are now ubiquitous within the atmosphere and their deposition represents a potential source of contamination to surficial environments. Few studies, however, have examined the environmental fate of atmospheric industrial metals within different surface environments. In this study, patterns of accumulation of atmospherically transported industrial metals were investigated within the surface environments of the Snowy Mountains, Australia. Metals, including Pb, Sb, Cr and Mo, were enriched in aerosols collected in the Snowy Mountains by 3.5–50 times pre-industrial concentrations. In sedimentary environments (soils, lakes and reservoirs) metals showed varying degrees of enrichment. Differences were attributed to the relative degree of atmospheric input, metal sensitivity to enrichment, catchment area and metal behaviour following deposition. In settings where atmospheric deposition dominated (ombrotrophic peat mires in the upper parts of catchments), metal enrichment patterns most closely resembled those in collected aerosols. However, even in these environments significant dilution (by 5–7 times) occurred. The most sensitive industrial metals (those with the lowest natural concentration; Cd, Ag, Sb and Mo) were enriched throughout the studied environments. However, in alpine tarn-lakes no other metals were enriched, due to the dilution of pollutant-metals by catchment derived sediment. In reservoirs, which were located lower within catchments, industrial metals exhibited more complex patterns. Particle reactive metals (e.g. Pb) displayed little enrichment, implying that they were retained up catchment, whereas more soluble metals (e.g., Cu and Zn) showed evidence of concentration. These same metals (Cu and Zn) were depleted in soils, implying that they are preferentially transported through catchments. Enrichment of other metals (e.g. Cd) varied between reservoirs as a function of contributing catchment area. Overall this study showed that the fate of atmospherically derived metals is complex, and depends upon metal behaviour and geomorphic processes operating at landscape scales. © 2014 Elsevier B.V.en_AU
dc.identifier.citationStromsoe, N., Marx, S.K., McGowan, H.A., Callow, N., Heijnis, H., & Zawadzki, A. (2015). A landscape-scale approach to examining the fate of atmospherically derived industrial metals in the surficial environment, Science of The Total Environment, 505, 962-980. doi:10.1016/j.scitotenv.2014.10.072en_AU
dc.identifier.govdoc9497en_AU
dc.identifier.issn0048-9697en_AU
dc.identifier.journaltitleScience of The Total Environmenten_AU
dc.identifier.pagination962-980en_AU
dc.identifier.urihttps://doi.org/10.1016/j.scitotenv.2014.10.072en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9459en_AU
dc.identifier.volume505en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectMetalsen_AU
dc.subjectAerosolsen_AU
dc.subjectPollutantsen_AU
dc.subjectAustraliaen_AU
dc.subjectEcological concentrationen_AU
dc.subjectEnvironmental transporten_AU
dc.titleA landscape-scale approach to examining the fate of atmospherically derived industrial metals in the surficial environmenten_AU
dc.typeJournal Articleen_AU
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