55 record(s) found with the tag "sediment quality" (multi-year projects are grouped):
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Continuation of the Gordon Lake Assessment Project
Principal Investigator: Doucet, Michael
Licenced Year(s): 2016 2015
Summary: The primary objective of this research program is to determine the environmental and physical conditions of nine sites in the Gordon Lake region. This research will include the identification and quantification of environmental impacts in soil, sediment, surface water and groundwater. Samples of biota (e.g. Hyalella) may be collected at certain sites during the field program. The potential for...


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...


The influence of forest fires on metal deposition to lakes and peatlands in the North Slave Region, NWT
Principal Investigator: Chetelat, John
Licenced Year(s): 2016
Summary: The research team will use natural environmental archives (lake sediment and peat cores) to characterize the forest fire history in the study region and test the relationship between fire events and metal accumulation over recent centuries. Study sites will be selected along a gradient of recent forest fire activity with some study sites located in areas of the latest burns (2014-15) to examine th...


Hydrological and contaminant studies in the Marian Watershed, NWT, to enhance community-based cumulative effects monitoring
Principal Investigator: Wolfe, Brent BBW
Licenced Year(s): 2016
Summary: While water and sediment quality monitoring in areas of industrial developments is an integral part of water management programs to ensure protection of ecosystems, absence of long-term measurements can make it challenging to define reference conditions effectively. As a contribution to the Marian Watershed Stewardship Program (MWSP), this research uses paleolimnological approaches to establish ba...


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...


NATCL - Cantung Mine 2015 Environmental Effects Monitoring
Principal Investigator: Carson, Richard J
Licenced Year(s): 2017 2015
Summary: The objectives are to evaluate if there are differences in biological parameters among study sites and between years of the Environmental Effects Monitoring study are still present and whether any differences are the result of current mining practices, historical mining practices, or a combination of the two. The design will include studies on fish (non-lethal sampling of slimy sculpin), benthi...


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...


Marian Watershed Community-Based Aquatic Effects Monitoring Program
Principal Investigator: Garner, Kerri
Licenced Year(s): 2013
Summary: The Tlicho Lands Moratorium was lifted in June 2013, and development pressure is expected to increase on Tlicho Lands. As Tlicho Lands are in relatively pristine condition, the intent of this study is to begin to collect baseline data at sites prioritized by community members away from specific project footprints in order to analyze the cumulative impacts of development, climate change, and increa...


Great Slave Lake Area Mines: 2013 Sampling Program
Principal Investigator: Wiatzka, Gerd M
Licenced Year(s): 2013 2012 2011 2010
Summary: The objective of the 2013 Great Slave Lake Mines Sampling Program is to assist Aboriginal And Northern Development Canada-Contaminants And Remediation Directorate (AANDC-CARD) with its ongoing work to clean up abandoned mine sites across the Northwest Territories. The program aims to collect additional environmental data which will be used to confirm current site conditions and to assist with fina...


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