28 record(s) found with the tag "contaminants" (multi-year projects are grouped):
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Toxic Effects of Chronic Arsenicosis in Muskrats and Squirrels from Yellowknife
Principal Investigator: Amuno, Solomon A
Licensed Year(s): 2017
Summary: The objectives of this research project are to: 1. investigate the effects of chronic arsenic exposure on reproductive parameters, specifically seminal and hormonal parameters including testicular pathology and os penis (baculum) morphology of small mammals (muskrats and squirrels) inhabiting the vicinity of the Yellowknife area, near the Giant mine, and in a reference location approximately 30-8...


Developing New Tools for Assessing Legacy Pollutants and their Ecological Consequences in Lakes Near Northwest Territories Mines
Principal Investigator: Blais, Jules M
Licensed Year(s): 2017 2016 2015
Summary: The research team propose to develop tools to assess risks associated with legacy industrial developments in a northern setting. The team will investigate contaminants from the Giant Mine near Yellowknife Northwest Territories (NT), which operated between 1948 and 2004, producing a legacy of contaminants including arsenic, antimony, hydrocarbons, mercury, and others. This remediation strategy appl...


Toxic Legacies: Community Perspectives on Arsenic Pollution at Yellowknife's Giant Mine
Principal Investigator: Sandlos, John K
Licensed Year(s): 2017 2016 2015 2014 2013
Summary: The objective is to use academic and non-academic media to examine and communicate community perspectives on the history, and current problem, of arsenic deposition in Yellowknife. The research team will not only ask how these historical memories have influenced the current controversy over the Giant Mine Remediation Project, but will also examine the challenges of communicating the extreme hazard...


Understanding regional variability in soil geochemistry in an area impacted by legacy industrial activity
Principal Investigator: Oliver, Jonathon
Licensed Year(s): 2016 2015
Summary: The specific objectives of this research are: 1) to investigate concentrations of arsenic and other elements in regional soils to gain a better understanding of regional baseline soil geochemistry; 2) to determine speciation of arsenic in selected soils from the region with elevated concentrations to determine whether arsenic in soils is from a natural geologic source or is derived from past indus...


Oxidative Stress, DNA Damage and Bone Metabolism Disruption in Small Mammal Populations Exposed to Arsenic and Heavy Metals in Yellowknife, NWT: A Preliminary Study
Principal Investigator: Amuno, Solomon A
Licensed Year(s): 2016
Summary: The first objective of this preliminary study is to monitor in selected small mammal population, specifically the snowshoe hare population the effects of metal exposure on oxidative stress parameters as well as metalothionenin gene expression and genotoxicity (DNA damage and mutation induction). The second is to monitor effect of metal exposure on bone microstructure alterations, including biomark...


Tundra Mine Remediation Risk Assessment
Principal Investigator: Corrin, Natasha
Licensed Year(s): 2016
Summary: The overall objective of the Tundra Mine risk assessment is to facilitate project closure by determining if there are any residual risks to human health or ecological receptors, including aquatic life, associated with the proposed tailings remediation. If any risks remain, the goal is to provide recommendations for risk management. In support of the risk assessment, and in order to collect baselin...


Characterization of arsenic-hosting solid phases in Giant Mine tailings and tailings dust
Principal Investigator: Bailey, Alexandra
Licensed Year(s): 2016
Summary: The primary objective of this research is to analyze near-surface tailings from the tailings ponds and shoreline at Giant Mine in Yellowknife, Northwest Territories, and to distinguish the arsenic-hosting phases in both the bulk tailings and the fine fraction of the tailings from the site. The research team will initially take near-surface samples of tailings - from which windblown dust may be ...


Characterization of arsenic species in lake sediments surrounding Giant Mine, NWT.
Principal Investigator: Van Den Berghe, Martin
Licensed Year(s): 2016 2015
Summary: The purpose of this study is to determine whether the arsenic present in regional lake sediments is of natural or anthropogenic origin, and whether these lakes act as a sink (capture) or a source (release) of arsenic in the overlying lake waters. By evaluating the relative stability of arsenic species in these different chemical media, the research team may establish the long term trends of arseni...


Non-toxic arsenic in mushrooms and plants from Yellowknife
Principal Investigator: Reimer, Kenneth J.
Licensed Year(s): 2012
Summary: The objectives of this research is to: determine total arsenic and arsenic species in edible and non-edible mushrooms from contaminated and uncontaminated locations (mine properties and roadsides/parks); determine total arsenic and arsenic species in plants including Labrador tea, horsetails, buffaloberry, fireweed and berries (if available) from contaminated and uncontaminated locations (mine pro...


An investigation of arsenic speciation and toxicity in Baker Creek sediments from Giant Mine in the Northwest Territories, Canada
Principal Investigator: Nash, Tyler J
Licensed Year(s): 2012
Summary: The objective of this research project is to assess the sediment quality of Baker Creek. This will be achieved by analyzing factors influencing arsenic mobility from sediments to overlying water and assessing the toxicology of the sediments using exposure tests on indicator organisms. Core samples of Baker Creek sediments will be taken by the researchers using aluminum pipes driven into the gro...


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