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TitleDetermining the processes responsible for plume attenuation in an oil sands wetland
DownloadDownload (whole publication)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorGammon, P
SourcePublic presentations May 11, 2021: Environmental Geoscience Program, current status of research projects for the 2019-2024 program cycle; by Jacob, N; Jautzy, JORCID logo; Kao, HORCID logo; Rivard, CORCID logo; Ahad, J M EORCID logo; Gammon, P R; Outridge, P MORCID logo; Galloway, J MORCID logo; Desbarats, A JORCID logo; Duchesne, M JORCID logo; Bringué, MORCID logo; White, DORCID logo; Geological Survey of Canada, Scientific Presentation 125, 2021 p. 71-85, Open Access logo Open Access
LinksVideo (3TM)
PublisherNatural Resources Canada
MeetingPublic presentations: Environmental Geoscience Program; May 11, 2021
Mediaon-line; digital; video
RelatedThis publication is contained in Public presentations May 11, 2021: Environmental Geoscience Program, current status of research projects for the 2019-2024 program cycle
File formatpdf
NTS73M; 74D; 74E; 74L; 83P; 84A; 84H; 84I
AreaMuskeg River; Fort McMurray
Lat/Long WENS-113.5000 -110.0000 58.5000 55.7500
Subjectsenvironmental geology; hydrogeology; geochemistry; fossil fuels; Economics and Industry; Nature and Environment; Science and Technology; environmental impacts; petroleum industry; hydrocarbons; oil sands; wetlands; groundwater resources; aquifers; groundwater pollution; groundwater geochemistry; oil seeps; mine waste products; tailings disposal; modelling; boron geochemistry; element distribution; attenuation; microorganisms; carbonate; carbon; hydrostratigraphic units; isotopic studies; Environmental Geoscience Program (EGP); cumulative effects; Federal programs; Scientific research; Mining industry; Contaminated sites; Hydrology
Illustrationssketch maps; tables; cross-sections; profiles; spectra
ProgramEnvironmental Geoscience
Released2021 07 16
AbstractData collection, whilst somewhat delayed by COVID-related lab shutdowns), continues to generate important new insights into the environmental processes and chemistry at the research site new Fort McMurray. Interpretation and modelling of inorganic geochemical data from the site demonstrates that the plumes' boron (B) distribution is consistent with an equilibrium sorption model. The model approximates the start of the OSPW seepage at 13 years ago, which suggests seepage probably started with the establishment of the tailings pond. Unlike B, modelling of the acid extractable organic (AEO) data indicates that the very rapid (<20 m) attenuation of the OSPW signature is unlikely to be due to sorption alone, but rather due to competitive ligand reactions that ultimately lead to carboxylic acid sequestration in the substrate. Data on microbially-mediated AEO decomposition and seep water toxicity and toxicity evolution within the plume are pending.
Summary(Plain Language Summary, not published)
The goal of the Environmental Geoscience program (EGP) is to distinguish the environmental effects of natural resource development from those produced by natural processes, and to develop new approaches to support the sustainable use and development of Canada's natural resources through informed decision-making. The ultimate outcome of EGP is to increase the effectiveness and efficiency of Canadian environmental regulation and oversight. By developing innovative geoscience for environmental stewardship, as well as increasing public and private sector access to research findings, decision-makers have a greater capacity and are more empowered to carry out and review environmental assessments. This SP highlights the 5 public presentations provided on May 11, 2021 as well as all updates from all projects under the EGP.

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