371 record(s) found with the tag "contaminants" (multi-year projects are grouped):
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Inuvik to Tuktoyaktuk Highway Metal Chemistry
Principal Investigator: Gammon, Paul R
Licensed Year(s): 2023 2022 2021
Summary: This licence has been issued for the scientific research application No.5551. The overall objective of the research is to eventually determine the environmental chemistry of the elevated metal concentrations, which will in turn determine the environmental risk that these measured concentrations pose (i.e. will answer, at least in part, the questions: do these sites require remediation, and in w...


Geochemical Characterization and Reactive Transport Simulation of Metal Leaching and Acid Generation in Waste Rock from the Ekati Diamond Mine, NT
Principal Investigator: Blowes, David W.
Licensed Year(s): 2023
Summary: This licence has been issued for the scientific research application No.5492. The objective of this project is to characterize the geochemical evolution of the waste-rock contained in Pigeon waste-rock storage area to refine management solutions for this waste stream. The proposed research activities will involve field collection of Pigeon waste-rock samples and installation of monitoring eq...


Recovery of the Mine-impacted Landscape in the Yellowknife Region
Principal Investigator: Palmer, Mike
Licensed Year(s): 2023
Summary: This licence has been issued for the scientific research application No.5534. The long-term objective of this research is to determine what processes control the recovery of the landscape near Yellowknife that was contaminated by stack emissions from the Giant Mine roaster, and how this recovery will be affected by climate change and unusual or severe weather events. One focus will be on how cl...


Subarctic Lakes in a Changing Climate (SLACC) - Lake studies in the Yellowknife area
Principal Investigator: Palmer, Mike
Licensed Year(s): 2024 2023
Summary: This licence has been issued for the scientific research application No.5531. The overarching objective of this program is to take an ecosystem approach to assessing how multiple environmental stressors impact aquatic habitats in subarctic shield terrain. There are three central activities that will be undertaken with this license and they are designed to address the specific objectives below: ...


Temporal trend studies of trace metals and halogenated organic contaminants (HOCs) including new and emerging persistent compounds, in Mackenzie River burbot, Fort Good Hope, NWT
Principal Investigator: Stern, Gary
Licensed Year(s): 2023
Summary: This licence has been issued for the scientific research application No.5414. The short-term goals are to determine if burbot contaminant concentrations: 1) Remain below Health Canada guidelines (i.e. <0.5 ppm mercury per gram fish). The research will provide annual data to NWT Health and Social Services for evaluation; 2) Are associated with dietary indicators, i.e. stable isotope ratio data (...


Bioassay-based investigations on Arctic beluga blubber samples
Principal Investigator: Wania, Frank
Licensed Year(s): 2023
Summary: This licence has been issued for the scientific research application No.5471. The objectives of this research project are to: 1. Characterize the effects that chemical extracts from the traditional food samples have on a number of cellular processes. Their results can indicate the type of toxicity that those chemical extracts may cause. 2. Use the Arctic beluga as a "clean" reference in inves...


Hydrogeological investigation of the treatment performance of subsurface wastewater treatment systems in the NWT
Principal Investigator: Jamieson, Rob
Licensed Year(s): 2024 2023 2022
Summary: This licence has been issued for the scientific research application No.5413. The overall objective of this study is improved understanding of wastewater effluent transport within permafrost environments in the NWT. The proposed study aims to answer the following questions: 1) What is the potential for contamination of groundwater and receiving waters through active layer transport of effluent...


Further Examination of the Bio- Magnification of Mercury within Fish Species and watersheds of the Deh Cho and Their Varying Levels Among Lakes
Principal Investigator: Low, Mike
Licensed Year(s): 2024 2023 2021 2019
Summary: This licence has been issued for the scientific research application No.5348. The objectives of this research project are: 1) to determine why fish mercury levels vary among lakes in the Dehcho region; 2) to identify best predictors of fish mercury levels; 3) to determine with fish have the lowest levels of mercury and the highest levels of nutrients; and, 4) to collect data on parameters that ...


Biochemical and metabolomic impact of trace metals (As, Sb, Cd, Ag, La, Ce) in various fish species and amphipods collected from the metal-impacted Yellowknife area
Principal Investigator: Rosabal, Maikel
Licensed Year(s): 2022
Summary: This licence has been issued for the scientific research application No.5278. The main goal is to generate a specific knowledge about the implications of metals bioaccumulated observed in the population of three species of fish (e.g., northern pike, lake whitefish, yellow perch) and invertebrates (H. azteca) inhabiting ecosystems located in this mining region. The specific objectives are: 1) to...


Monitoring of mercury, flame retardants and other chemicals in lake trout and cisco from Great Bear Lake
Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2022 2021
Summary: This licence has been issued for the scientific research application No.5359. This study is designed to find out whether contaminant levels are changing in fish (lake trout and cisco) in Great Bear Lake. Of particular interest is mercury. It complements ongoing fish population studies being conducted by the Department of Fisheries and Oceans on Great Bear Lake and contributes to Deline's resear...


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