Research Projects

 
Project Title
Project P1: Field determinations of metal bioavailability in aquatic and terrestrial systems.

 

Research Team
Beverley Hale (University of Guelph) - PI
Email: bhale@lrs.uoguelph.ca

Landis Hare (Université du Québec, INRS-Eau),
William Hendershot (McGill University),
Gary Hogan (Canadian Forest Service),
Andre Tessier (Université du Québec, INRS-Eau),
Norman Yan (Ontario Ministry of Environment and Energy)

 

Project Summary
The relationship between metal exposure concentration and effect in plants and aquatic organisms is not straightforward, because the bioavailability of metals from the environmental compartment in which the organisms are exposed is situation-specific. Both aquatic organisms and plants are exposed to metals in solution, which are in dynamic equilibrium with the soil solid or sediment phase; in addition, aquatic organisms are also exposed to metals in prey. In this project, we propose to explore the linkages between metals that are "available" in various soil and aquatic compartments and their accumulation in the organisms that occupy those compartments. Parallels between terrestrial and aquatic systems will be sought, towards the goal of harmonious regulations for metals in both situations. The organisms to be considered include herbaceous and woody monocots and dicots, bryophytes and benthic invertebrates.