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TitleMercury concentrations in near-surface lake sediments of the Yellowknife area, Northwest Territories, Canada
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorGalloway, J MORCID logo; Palmer, M; Parsons, MORCID logo; Nasser, N; Falck, H; Roe, H M; Patterson, R T
SourceGeological Survey of Canada, Open File 8949, 2023, 27 pages, https://doi.org/10.4095/331434 Open Access logo Open Access
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Year2023
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediadigital; on-line
File formatpdf
ProvinceNorthwest Territories
NTS74; 75; 76; 84; 85; 86; 95; 96
AreaYellowknife
Lat/Long WENS-121.8528 -106.5061 66.6633 58.6136
SubjectsScience and Technology; sedimentology; Nature and Environment; metallic minerals; mercury; lake sediments; heavy metals contamination; lake sediment geochemistry; sediments
Illustrationslocation maps; tables
ProgramGEM-GeoNorth: Geo-mapping for Energy and Minerals GEM Program Coordination
Released2023 02 15
Abstract(Summary)
Total mercury (Hg) concentration was measured in 175 near-surface sediment samples from 169 lakes in the central Northwest Territories. The lakes are located west and southwest of the City of Yellowknife in the Western Interior Platform, near the City of Yellowknife, east and southeast of the City of Yellowknife along the Ingraham Trail (Highway 4), and northeast of the City of Yellowknife along the Tibbitt to Contwoyto Winter Road. Total Hg in the sediment samples ranges from 3 to 317 ug.kg-1. The sediments sampled from lakes in the Western Interior Platform had significantly lower sedimentary Hg concentrations than the other regions.
Summary(Plain Language Summary, not published)
Total mercury (Hg) concentration was measured in the 177 near-surface sediments samples from 169 lakes in the Northwest Territories. The lakes are located west and southwest of the City of Yellowknife, near the City of Yellowknife, east of the City of Yellowknife along and south of the Ingraham Trail, and northeast of the City of Yellowknife along the Tibbitt to Contwoyto Winter Road. Total Hg in the samples ranges from 3 to 317 ug.kg-1. The sediments sampled from lakes in the vicinity of the City of Yellowknife contain significantly higher concentrations of Hg than lakes from the other localities (90, range 3-249 ug.kg-1) even though the highest concentration was found in the near-surface sediments of a lake located along the Tibbitt to Contwoyto Winter Road.
GEOSCAN ID331434

 
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