The Potential for Geochemical and Microbial Remobilization of Arsenic from Sediments in Yellowknife Bay, Great Slave Lake

Regions: North Slave Region

Tags: physical sciences, mining impacts, arsenic, geochemistry, sediment quality

Principal Investigator: Andrade, Claudio (1)
Licence Number: 13525
Organization: Queen's University
Licensed Year(s): 2003
Issued: Aug 06, 2003
Project Team: Heather E.

Objective(s): The overall goal is to provide data on arsenic cycling in sub-aqueous sediments to better understand the potential environmental impacts within Yellowknife Bay and the long-term fate of arsenic. Important objectives of the project are to assess the stability of arsenic-associated minerals in Yellowknife Bay sediments and to characterize the mechanisms controlling arsenic mobility in sediment porewaters. In order to meet these objectives, we have developed a sampling strategy that targets environmentally and geochemically diverse locations within the arsenic-enriched sediment footprint adjacent to the Giant mine. Careful consideration has also been given to potential seasonal geochemical changes within Yellowknife Bay.