SS3.17 Global Mercury Cycling: From Natural to Anthropogenic Sources
Date: Tuesday, June 11, 2002
Time: 9:30:00 AM
Location: Carson C
Lucotte Marc-Michel, Universite du Quebec a Montreal, Montreal, Canada,
COMERN the Canadian Collaborative MErcury Research Network
COMERN was launched in May 2001 as a Pan-Canadian network of researchers dealing with the problem of Hg contamination in Canada, from its ubiquitous presence in the environment to its impacts on human health. It is intended to trace Hg pathways between various environmental compartments at local and regional scales, from its chemistry in the atmosphere, to its transfer to aquatic environments, its methylation and its accumulation in aquatic biota. Links between environmental exposure and human health are developed through an ecosystem approach within three case studies that involves the participation of local communities, both natives and sportsfishers, in contrasted Canadian ecosystems: lakes of the Boreal Forest, the coastal environment of the Bay of Fundy, and the St-Lawrence River. The modeling of information gathered by COMERN scientists should lead to the quantification of the relationship between Hg inputs and ecosystem response, as measured by environmental end points such as Hg levels in fish, so that the effects of any change in amount of Hg inputs can be reasonably predicted, and this prediction used for a better management of the environment.