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Atmospheric Trends and Fate of mercury and other Toxic Chemicals

The project specializes in work on elemental Hg in water and snow   using clean techniques, and is one of the few laboratories in Canada   conducting such work. This information is contributing to knowledge   of sources and pathways of this toxic chemical in the Great Lakes,   boreal forest and high Arctic environments. Past work on this project   on POPs has contributed significantly to understanding of sources of   contaminants in the Great lakes and their long term trends.  Research 2  2-2  3 Significance and possible applications of the   research: Contributes knowledge on levels, spatial and temporal   trends of priority chemicals identified in PSL-1 and 2, and TSMP in   water, precipitation, and aquatic food chains, as well as air-water   exchange, for use in Canadian and international risk assessment and   management programs. Major emphasis in 2  2- 3 is on mercury in   surface waters and precipitation and on completing samples for POPs   analysis from TLW.  Performance Indicators:  1. Samples from three sites in each of Lake Ontario's three basins   and depth profiles at one station in each basin to be collected   (June, 2  2).  Intercomparison sub-samples of single bulk sample to   be distributed.  2. All Hg analyses of Swan Hills study (TSRI 2 8) to be completed and   draft report with study  collaborators to be prepared.         3. Complete 2  2 analyses of Hg in snow from Alert and receive and   process 2  3 samples.  Complete all Hg and trace metal analyses for samples from Turkey   Lakes and prepare data for mass balance assessment.    5. All samples from TLW study to be completed  6. Samples from the rain network to be completed  Significance: Adverse impacts on human health and the environment   from existing toxics and other substances of concern are understood   by Canadians and are prevented and/or reduced and adverse human   impact on the atmosphere and on air quality is reduced.  Clients include MSC (Atmospheric contaminants branch; C. Banic; B.   Schroeder), EPS (ESB and NSB of Toxics Pollution Prevention   directorate, Air Pollution Prevention Directorate), INAC.  

Status
In progress
Type
Project
Start Date
End Date
Scope of Study
Field Investigation
Scale of Phenomena
Ecosystem
Physical/Chemical
Impact of Pollutants
Toxic Metals
Lake Basin Connecting Channels
Lake Ontario
State Province
Ontario
Annex Numbers
Airborne Toxic Substances
Persistent Toxic Substances
Specific Objectives for toxic substances and effluents
Surveillance and Monitoring
General
Annex
  • Annex Numbers
    Annex Numbers
    Airborne Toxic Substances
    Persistent Toxic Substances
    Specific Objectives for toxic substances and effluents
    Surveillance and Monitoring
  • Annex 17

The Great Lakes - St. Lawrence Research Inventory is an
interactive, Internet-based, searchable database created as a tool to collect and disseminate
up-to-date information about research projects in the
Great Lakes - St. Lawrence Region.