27 record(s) found with the tag "arsenic" (multi-year projects are grouped):
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Understanding regional variability in soil geochemistry in an area impacted by legacy industrial activity
Principal Investigator: Oliver, Jonathon
Licenced 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
Licenced 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
Licenced 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
Licenced 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 ...


Toxic Legacies: Community Perspectives on Arsenic Pollution at Yellowknife's Giant Mine
Principal Investigator: Sandlos, John K
Licenced Year(s): 2016 2015 2014 2013
Summary: This project will take on the challenge of using 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 communi...


Developing New Tools for Assessing Legacy Pollutants and their Ecological Consequences in Lakes Near Northwest Territories Mines
Principal Investigator: Blais, Jules M
Licenced Year(s): 2016 2015
Summary: The research team will 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 NT, which operated between 1948 and 2004, producing a legacy of contaminants including arsenic, antimony, hydrocarbons, mercury, and others. This remediation strategy only applies to the Giant Mine pro...


Characterization of arsenic species in lake sediments surrounding Giant Mine, NWT.
Principal Investigator: Van Den Berghe, Martin
Licenced 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...


Cumulative Impacts Monitoring of Aquatic Ecosystem Health of Yellowknife Bay, Great Slave Lake
Principal Investigator: Chételat, John
Licenced Year(s): 2015
Summary: The main objective of this study is to investigate the ecosystem health of Yellowknife Bay. We will address the following questions through a field study: 1) What is the quality of water and sediment in Yellowknife Bay (focusing on metals, nutrients and cyanobacteria)? 2) What are the main sources and transport pathways of metals accumulating in the food web of Yellowknife Bay? 3) How much of ...


Cumulative impacts of metal deposition in the NWT: Using lead isotopes to trace local, regional and long-range sources
Principal Investigator: Chételat, John
Licenced Year(s): 2014 2013
Summary: Yellowknife Bay on Great Slave Lake is a water body of cultural, subsistence and recreational importance for the Yellowknives Dene First Nation (YKDFN) and residents of Yellowknife. The ecosystem health of Yellowknife Bay has been impacted by historical mining releases of metals (particularly arsenic), as well as long-range atmospheric transport of metals such as mercury from far-away human emissi...


Non-toxic arsenic in mushrooms and plants from Yellowknife
Principal Investigator: Reimer, Kenneth J.
Licenced 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...


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