|Wednesday, June 23|
Environmental Effects of Gold Mining in Canada: Past, Present and Future
* Michael Parsons, Geological Survey of Canada - Atlantic in Halifax
The mining and milling of gold can result in significant risks to the environment and human health without appropriate mine planning, environmental management, and monitoring programs. Mining has been an important part of the Canadian economy for at least the last 150 years and many early mines were operated before the enactment of modern environmental regulations. The environmental legacy of these historical mining practices has led to more stringent regulations and new technologies to improve environmental stewardship within the mining sector. However, there remain significant gaps in our understanding of baseline conditions in mining areas, the long-term behaviour of mine wastes, and uncertainty regarding the most appropriate strategies to monitor the success of remediation efforts. This webinar will provide a brief overview of the main types of gold deposits in Canada and some of the key environmental concerns at both historical and modern gold mines across the country. I will summarize results from recent studies in Nova Scotia on the environmental effects of past gold mining and how this knowledge is now being used to clean-up abandoned mines and guide environmental management for new gold mine sites.