Freshwater quality monitoring
Environmental monitoring, Assessment and reporting on aquatic ecosystems status and trends.
Services and information
Great Lakes, St. Lawrence, St. Croix, Churchill and Saint John rivers.
Nelson, Saskatchewan and Churchill rivers, Lake Winnipeg, Lake Manitoba, Lake of the Woods.
Fraser, Yukon, Columbia and Quinsam rivers, Georgia Basin.
Mackenzie, Peace, Athabasca, and Liard rivers, Slave, Athabasca and Great Bear lakes.
Excessive contributions of phosphorus and nitrogen can cause eutrophic conditions in aquatic ecosystems.
Aquatic ecosystems in agricultural regions are vulnerable to contamination by pesticides.
Polychlorinated Biphenyls (PCBs), polycyclic aromatic hydrocabons (PAHs), and metals, including mercury, are found in water and sediment.
Chemical and pharmaceutical products are monitored.
Preserving the health of Canadian waters is a shared responsibility.
What we are doing
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