Application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta

Study region: Peace-Athabasca Delta (PAD), northeastern Alberta. Study focus: Potential for downstream delivery of contaminants via Athabasca River floodwaters to lakes of the PAD has raised local to international concern. Here, we quantify enrichment of eight metals (Be, Cd, Cr, Cu, Ni, Pb, V, Zn)...

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Autores principales:	Cory A.M. Savage, Tanner Owca, Mitchell L. Kay, Jelle Faber, Brent B. Wolfe, Roland I. Hall
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Contaminant monitoring Periphyton Floodplain Peace-Athabasca Delta Athabasca Oil Sands Wood Buffalo National Park Action Plan Physical geography GB3-5030 Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/a9e6b6a0b2e240b995dff98d984b4e0b
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spelling	oai:doaj.org-article:a9e6b6a0b2e240b995dff98d984b4e0b2021-11-06T04:28:58ZApplication of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta2214-581810.1016/j.ejrh.2021.100954https://doaj.org/article/a9e6b6a0b2e240b995dff98d984b4e0b2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S221458182100183Xhttps://doaj.org/toc/2214-5818Study region: Peace-Athabasca Delta (PAD), northeastern Alberta. Study focus: Potential for downstream delivery of contaminants via Athabasca River floodwaters to lakes of the PAD has raised local to international concern. Here, we quantify enrichment of eight metals (Be, Cd, Cr, Cu, Ni, Pb, V, Zn) in aquatic biota, relative to sediment-based pre-industrial baselines, via analysis of biofilm-sediment mixtures accrued on artificial substrate samplers deployed during summers of 2017 and 2018 in > 40 lakes. Widespread flooding in the southern portion of the delta in spring 2018 allows for assessment of metal enrichment by Athabasca River floodwaters. New hydrological insights: River floodwaters are not implicated as a pathway of metal enrichment to biofilm-sediment mixtures in PAD lakes from upstream sources. MANOVA tests revealed no significant difference in residual concentrations of all eight metals in lakes that did not flood versus lakes that flooded during one or both study years. Also, no enrichment was detected for concentrations of biologically inert metals (Be, Cr, Pb) and those related to oil-sands development (Ni, V). Enrichment of Cd, Cu, and Zn at non-flooded lakes, however, suggests uptake of biologically active metals complicates comparisons of organic-rich biofilm-sediment mixtures to sediment-derived baselines for these metals. Results demonstrate that this novel approach could be adopted for lake monitoring within the federal Action Plan.Cory A.M. SavageTanner OwcaMitchell L. KayJelle FaberBrent B. WolfeRoland I. HallElsevierarticleContaminant monitoringPeriphytonFloodplainPeace-Athabasca DeltaAthabasca Oil SandsWood Buffalo National Park Action PlanPhysical geographyGB3-5030GeologyQE1-996.5ENJournal of Hydrology: Regional Studies, Vol 38, Iss , Pp 100954- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Contaminant monitoring Periphyton Floodplain Peace-Athabasca Delta Athabasca Oil Sands Wood Buffalo National Park Action Plan Physical geography GB3-5030 Geology QE1-996.5
spellingShingle	Contaminant monitoring Periphyton Floodplain Peace-Athabasca Delta Athabasca Oil Sands Wood Buffalo National Park Action Plan Physical geography GB3-5030 Geology QE1-996.5 Cory A.M. Savage Tanner Owca Mitchell L. Kay Jelle Faber Brent B. Wolfe Roland I. Hall Application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta
description	Study region: Peace-Athabasca Delta (PAD), northeastern Alberta. Study focus: Potential for downstream delivery of contaminants via Athabasca River floodwaters to lakes of the PAD has raised local to international concern. Here, we quantify enrichment of eight metals (Be, Cd, Cr, Cu, Ni, Pb, V, Zn) in aquatic biota, relative to sediment-based pre-industrial baselines, via analysis of biofilm-sediment mixtures accrued on artificial substrate samplers deployed during summers of 2017 and 2018 in > 40 lakes. Widespread flooding in the southern portion of the delta in spring 2018 allows for assessment of metal enrichment by Athabasca River floodwaters. New hydrological insights: River floodwaters are not implicated as a pathway of metal enrichment to biofilm-sediment mixtures in PAD lakes from upstream sources. MANOVA tests revealed no significant difference in residual concentrations of all eight metals in lakes that did not flood versus lakes that flooded during one or both study years. Also, no enrichment was detected for concentrations of biologically inert metals (Be, Cr, Pb) and those related to oil-sands development (Ni, V). Enrichment of Cd, Cu, and Zn at non-flooded lakes, however, suggests uptake of biologically active metals complicates comparisons of organic-rich biofilm-sediment mixtures to sediment-derived baselines for these metals. Results demonstrate that this novel approach could be adopted for lake monitoring within the federal Action Plan.
format	article
author	Cory A.M. Savage Tanner Owca Mitchell L. Kay Jelle Faber Brent B. Wolfe Roland I. Hall
author_facet	Cory A.M. Savage Tanner Owca Mitchell L. Kay Jelle Faber Brent B. Wolfe Roland I. Hall
author_sort	Cory A.M. Savage
title	Application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta
title_short	Application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta
title_full	Application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta
title_fullStr	Application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta
title_full_unstemmed	Application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta
title_sort	application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the peace-athabasca delta
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a9e6b6a0b2e240b995dff98d984b4e0b
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Application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta

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