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TitleExisting evidence for historical metal contamination in previous studies at Lac Dasserat
DownloadDownload (whole publication)
AuthorAlpay, S; Goulet, R
SourceMultidisciplinary environmental science investigations surrounding the former Aldermac mine, Abitibi, Quebec: The Lac Dasserat study workshop summarized; by Alpay, S (ed.); Geological Survey of Canada, Open File 7993, 2016 p. 8-9, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is contained in Alpay, S; (2016). Multidisciplinary environmental science investigations surrounding the former Aldermac mine, Abitibi, Quebec: The Lac Dasserat study workshop summarized, Geological Survey of Canada, Open File 7993
File formatpdf
NTS32D/03; 32D/06
AreaRouyn-Noranda; Lac Dasserat
Lat/Long WENS -79.5000 -79.0000 48.5000 48.0000
Subjectsenvironmental geology; geochemical analyses; stream sediment geochemistry; stream water geochemistry; lake sediment geochemistry; lake water geochemistry; copper geochemistry; zinc geochemistry; gold geochemistry; silver geochemistry; trace metals; heavy metals contamination; watersheds; environmental studies; environmental analysis; environmental impacts; lakes; tailings analyses; Aldermac Mine; Abitibi greenstone belt
ProgramEnvironmental Geoscience, Tools for environmental impacts and adaptation for metal mining
Released2016 03 11
The Lac Dasserat study was conceptualized initially in discussions between Natural Resources Canada and Environment Canada. The study focussed on a unique field site where metal contamination from an abandoned mine adversely affected the downstream watershed for decades. This created an opportunity for multidisciplinary research to: (1) identify the physical, chemical, biological, and toxicological effects of metal contamination in space and time, and (2) develop scientific tools to assess environmental effects and potential recovery from metal contamination in aquatic receiving environments. Over the course of this study, the need for complementary scientific approaches, for example, in biology, toxicology, geology, chemistry, mineralogy, remote sensing, and modeling, has become increasingly pertinent for informed environmental risk assessment. Several scientific lines of evidence in the Lac Dasserat field site converged on findings which suggested that the abandoned mine was the major source of contamination in the area and that environmental recovery may have already begun after restoration of the mining property upstream. Diverse new tools for environmental risk assessment, such as rapid chemical analysis of surface water in the field, effects of metal addition to toxicity, and predictive modeling at a watershed scale, were explored during the workshop. The rationale for the workshop was to allow contributors from different components of Canada's innovation system to come together and become aware of complementary preliminary results. Scientific contributors from academia and government had the opportunity to discuss, compare, and understand each other's findings to the point of enhancing scientific interpretations of individual results in the context of a larger dataset. Additionally, collaborators began to explore further opportunities to advance research at a larger scale and in a manner which can be used to advantage by practitioners and regulators of environmental risk assessment.