|Title||Multidisciplinary environmental science investigations surrounding the former Aldermac mine, Abitibi, Quebec: The Lac Dasserat study workshop summarized|
|Licence||Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences.|
|Source||Geological Survey of Canada, Open File 7993, 2016, 119 pages, https://doi.org/10.4095/297747 Open Access|
|Publisher||Natural Resources Canada|
|Related||This publication contains the following
|Area||Rouyn-Noranda; Lac Dasserat|
|Lat/Long WENS|| -79.5000 -79.0000 48.5000 48.0000|
|Subjects||environmental geology; hydrogeology; geochemistry; surficial geology/geomorphology; geophysics; mineralogy; geochemical analyses; stream sediment geochemistry; stream water geochemistry; lake sediment
geochemistry; lake water geochemistry; copper geochemistry; zinc geochemistry; gold geochemistry; silver geochemistry; cores; trace metals; heavy metals contamination; watersheds; environmental studies; environmental analysis; environmental impacts;
lakes; acoustic surveys; lake sediment cores; tailings analyses; tailings geochemistry; models; modelling; invertebrates; biological communities; biogeochemistry; biota; glacial deposits; glacial features; deglaciation; lake sediments; lake sediment
thickness; benthos; biogeology; biomes; spectral analyses; remote sensing; Aldermac Mine; Abitibi greenstone belt; Toxicology; Quaternary|
|Illustrations||location maps; tables; photographs; schematic diagrams; profiles; photomicrographs; histograms; plots; block diagrams; flow charts|
|Program||Environmental Geoscience Tools for environmental impacts and adaptation for metal mining|
|Released||2016 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.
|Summary||(Plain Language Summary, not published)|
The Lac Dasserat study arose from a unique field site where metal contamination from an abandoned mine adversely affected the downstream watershed for
decades. The scientific workshop created an opportunity for a multidisciplinary research to (1) identify the physical, chemical, biological, and toxicological effects of metal contamination in space and time, (2) develop scientific tools to assess
environmental effects and potential recovery from metal contamination in nearby lakes, and (3) improve environmental risk assessment and mining management practices.