Magella Pelletier

Sedimentologist - Responsible for monitoring sediment quality in the St. Lawrence River

Current research and/or projects

Contribution to Environment Canada's mandate regarding monitoring water quality

  • Temporal and spatial assessment of organic and inorganic contamination of St. Lawrence sediment
  • Physico-chemical characterzation of sediment accumulation areas affected by industrial and urban waste water
  • Development and implementation of a database containing geochemical and physical information regarding sediment (GISE)
  • Development of a granulometric analysis method adapted to sediment in the St. Lawrence.
  • Collaboration in developing an ecotoxicological assessment for characterizing of contaminated areas

Professional activities / interests

Research and expertise in sedimentology, geochmistry and hydrodynamics in lacustrine and river environments

Member of several federal/provincial committes related to the dredging of sediment to maintain and restore contaminated sectors

Education and awards

MSc Environmental Geology (1998), Institut national de la recherche scientifique - Eau terre & environnement [national scientific research institute - water, earth & environement] and Université Laval, Québec City

BSc Geology (1978), Université Laval, Québec City

Key publications

Pelletier, M. Toxic Contamination in Sediments - Lake Saint-Louis: the junction of two rivers. Quebec department of sustainable development, the environment and parks. Information sheet in the "Monitoring the State of the St. Lawrence" series. 2008.

Pelletier, M. Spatial and temporal evolution of the dynamics and geocemistry of sediment in Lake Saint-Pierre. Environment Canada – Science and Technology, Water Quality Monitoring - Quebec Region. Science and Technical Report ST-240. 2008.

Environment Canada and the Ministère du Développement durable, de l’Environnement et des Parcs du Québec. Criteria for the Assesssment of Sediment Quality in Quebec and Application Frameworks: Prevention, Dredging and Remediation. 2007.

Pelletier, M. and C. H. Marvin. Mercury contamination in the sediment of the Great Lakes and St. Lawrence. Environment Canada. Information sheet in the "Great Lakes – St. Lawrence Ecosystem" series. 2005.

Pelletier, M. Toxic Contamination in Sediments - Lake Saint-Pierre: Last Stop Before the Estuary. Environment Canada and Ministère du développement durable, de l’environnement et des parcs du Québec. Information sheet from the "Monitoring the State of the St. Lawrence" series. 2005.

Pelletier, M. and S. Lepage. Spatial and Temporal Evolution of the Geochemistry and Sedimentary Processes of Lake Saint-François in the 20th Century. Environment Canada – Quebec Region, St. Lawrence Centre. Science and Technical Report ST-225. 2002.

Research facility

7th Floor, 105 McGill Street
Montréal, QC H2Y 2E7