Temporal trends of emerging pollutant and mercury deposition through ice and sediment core sampling

1.Collect ice cores from the Grant Ice Cap and sediment cores from Lake Hazen in May 2017 and analyze for trace contaminants such as mercury (Hg), organophosphate esters (OPEs), and perfluoroalkyl substances (PFASs).2.Examine temporal trends of atmospheric deposition determined from the ice core analysis and relate to long-range transport, sources, and production trends.3.Examine accumulation rates determined from lake sediment core analysis in comparison to ice core data to quantify fate and delivery of contaminants from the ice cap into downstream aquatic ecosystems4.Provide the new information to local communities and the Nunavut Environmental Contaminants Committee.